{"title":"Empirical Labs 500 Format Modules","description":null,"products":[{"product_id":"empirical-labs-el-ds-derresser-horizontal-184961","title":"EL-DS DERESSER HORIZONTAL","description":"\u003ch3\u003eAn Empirical Labs \"de-esser\" that goes far beyond the classic role\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eDerrEsser\u003c\/strong\u003e comes in the \u003cstrong\u003eAPI 500\u003c\/strong\u003e format and adopts a highly effective idea: a unique \u003cstrong\u003eactive crossover filter\u003c\/strong\u003e that splits the spectrum into \u003cstrong\u003etwo bands\u003c\/strong\u003e (low frequencies and high frequencies). This approach allows triggering and applying dynamics more intelligently than a simple broadband detector, targeting the \"harsh\" areas while preserving the body and presence of the signal.\u003c\/p\u003e\u003cp\u003eWhere many de-essers limit themselves to reducing a sibilance range, the DerrEsser was designed as a \u003cstrong\u003emultifunction processor\u003c\/strong\u003e: dynamic control of highs, smoothing, creative filtering, and isolated listening thanks to the Listen function. The result: a module that fits well on a lead vocal as well as on sources rich in transients or harmonics.\u003c\/p\u003e\u003ch3\u003eWho the DerrEsser is for, and when to use it in the studio\u003c\/h3\u003e\u003cp\u003eThe DerrEsser targets sound engineers, demanding home studio users, and producers who want a \u003cstrong\u003efast tool\u003c\/strong\u003e to control excessive highs while remaining \u003cstrong\u003enatural\u003c\/strong\u003e. On a \u003cstrong\u003evocal\u003c\/strong\u003e, it helps tame overly prominent \"S\" sounds, especially after bright EQ or an already very \"forward\" take. On \u003cstrong\u003eoverheads\u003c\/strong\u003e, a \u003cstrong\u003ehi-hat\u003c\/strong\u003e, or \u003cstrong\u003eacoustic guitars\u003c\/strong\u003e, it can smooth aggressiveness without crushing the attack.\u003c\/p\u003e\u003cp\u003eIn mixing, its modes and detection logic also make it an ally to \"tame\" a source in the upper spectrum: reducing unstable brightness, calming a piercing upper-midrange, or preventing a track from lighting up irregularly on certain words, pick attacks, or transients. In recording, it can secure a take right from capture, with a musical action that avoids overcorrecting later with EQ.\u003c\/p\u003e\u003ch3\u003eModes, listening, and dynamic filtering: a simple yet very flexible approach\u003c\/h3\u003e\u003ch4\u003eDS Mode: de-essing sensitive to spectral content\u003c\/h4\u003e\u003cp\u003eIn \u003cstrong\u003eDS mode\u003c\/strong\u003e (HF limiter disabled), the DerrEsser manages sibilance and harshness based on a key principle: the detector circuit \u003cstrong\u003ecompares high-frequency content\u003c\/strong\u003e with low-frequency content, rather than reacting solely to overall level. When the high-frequency proportion becomes excessive, the threshold is exceeded and the module \u003cstrong\u003eattenuates frequencies above\u003c\/strong\u003e the cutoff point set by the \u003cstrong\u003eFrequency\u003c\/strong\u003e control.\u003c\/p\u003e\u003cp\u003eThis method helps avoid the \"muffled voice\" effect often associated with overly broadband de-essing. The goal is to remove what exceeds, at the moment it exceeds, while respecting the overall tonal balance.\u003c\/p\u003e\u003ch4\u003eHF LIMIT Mode: high-frequency control like an HF compressor\u003c\/h4\u003e\u003cp\u003eIn \u003cstrong\u003eHF LIMIT\u003c\/strong\u003e, the DerrEsser analyzes only the \u003cstrong\u003eoverall level of high frequencies\u003c\/strong\u003e. As soon as this HF content crosses the threshold, gain is reduced, with an action designed as a \u003cstrong\u003esmoothing\u003c\/strong\u003e of the highs. This mode can serve as a de-esser but excels especially when a more stable and less aggressive brightness is desired, for example on a very close vocal, cymbals that \"sizzle,\" or an overly bright acoustic guitar.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eSoft Knee\u003c\/strong\u003e-type behavior favors a progressive and musical gain reduction, useful when aiming to polish rather than correct audibly.\u003c\/p\u003e\u003ch4\u003eHIGHPASS and LOWPASS Modes: exploiting the filter and Listen function\u003c\/h4\u003e\u003cp\u003eBeyond dynamic processing, the DerrEsser allows using its filtering and circuits via the \u003cstrong\u003eListen\u003c\/strong\u003e function. In \u003cstrong\u003eHIGHPASS\u003c\/strong\u003e configuration, you listen to the high frequencies processed by the dynamics, with a cutoff frequency adjustable via \u003cstrong\u003eFrequency\u003c\/strong\u003e. In \u003cstrong\u003eLOWPASS\u003c\/strong\u003e configuration, you listen to the low frequencies (those unaffected by the VCA and dynamics), which is very practical for setting a crossover frequency, understanding what the detector \"sees,\" and refining a setting without guesswork.\u003c\/p\u003e\u003cp\u003eThe filter features a \u003cstrong\u003e12 dB per octave slope\u003c\/strong\u003e and adjustable frequency, contributing to precise work on the area to control. In practice, this is a real time saver: target, listen, adjust, then return to the full signal with a meaningful setting.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cstyle\u003e@media(max-width:632px){table[data-wb-spec]{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}table[data-wb-spec] colgroup{display:none}table[data-wb-spec] tbody,table[data-wb-spec] tr{display:contents}table[data-wb-spec] td{display:block;overflow-wrap:anywhere;grid-row:var(--wb-l);background-color:var(--wb-lb)}table[data-wb-spec] td[data-r]{grid-row:var(--wb-r);background-color:var(--wb-rb)}table[data-wb-spec] td[colspan=\"2\"]{grid-column:1\/-1}table[data-wb-spec] td:empty{display:none}}\u003c\/style\u003e\n\u003ctable data-wb-spec style=\"width:100%;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003c\/colgroup\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:1;--wb-r:2;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eequalizer\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eEQ\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eFilter\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable data-wb-spec style=\"width:100%;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003c\/colgroup\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:1;--wb-r:8;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFormat\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eAPI 500 compatible module\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eHF LIMIT Mode\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eanalysis of high-frequency level only, gain reduction if threshold exceeded, HF compressor-style approach to smooth the upper spectrum\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:2;--wb-r:9;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003emultifunction dynamic filtering processor (de-essing, HF limiting, listening functions via filter)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eHIGHPASS Mode\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003elistening to high frequencies processed via Listen and adjusted with Frequency\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:3;--wb-r:10;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFiltering\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eunique active crossover filter\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eLOWPASS Mode\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003elistening to low frequencies via Listen and HP\/LP switch, part unaffected by VCA and dynamics\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:4;--wb-r:11;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eProcessing in two bands\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003elow frequencies and high frequencies\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eThreshold control\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003emanages trigger threshold\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:5;--wb-r:12;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDynamics\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003esection based on VCA (Voltage Controlled Amplifier)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eFrequency control\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eadjustable cutoff frequency\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:6;--wb-r:13;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eGoal\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003emusical attenuation of high frequencies and \u0026quot;harsh\u0026quot; frequencies\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eFunctions\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eBypass, Listen, HP\/LP toggle\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:7;--wb-r:14;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDS Mode\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ede-esser with HF limiter disabled, detection based on HF vs LF comparison, attenuation above cutoff point defined by Frequency\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eFilter\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e12 dB per octave slope (in LOWPASS mode), frequency adjustable via Frequency control\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Empirical Labs","offers":[{"title":"Default Title","offer_id":54356563034387,"sku":"184961","price":710.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0872\/6803\/files\/cec628e55e63e039abb28f40e38335069f0a316f_1EMPIRICALLABS_DERRESS.jpg?v=1792672283"},{"product_id":"empirical-labs-el-ds-derresser-vertical-184962","title":"EL-DS DERESSER VERTICAL","description":"\u003ch3\u003eAn Empirical Labs Processor Designed to Go Beyond Simple De-Essing\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eDerrEsser\u003c\/strong\u003e is presented as a \u003cstrong\u003edynamic filtering\u003c\/strong\u003e processor in the \u003cem\u003eAPI 500\u003c\/em\u003e format, built around a simple yet highly effective concept: \u003cstrong\u003esplit the spectrum into two bands\u003c\/strong\u003e via an active filter, then apply controlled attenuation to the high band using a \u003cstrong\u003eVCA (Voltage Controlled Amplifier)\u003c\/strong\u003e. While many de-essers limit themselves to chasing \"S\" sounds at the cost of dulling the upper spectrum, the DerrEsser aims for an \u003cstrong\u003eextremely musical\u003c\/strong\u003e reduction, preserving useful energy, clarity, and presence when justified.\u003c\/p\u003e\u003cp\u003eIts uniqueness also lies in its versatility: depending on the selected mode, it can function as an \u003cstrong\u003eintelligent de-esser\u003c\/strong\u003e, a \u003cstrong\u003ehigh-frequency compressor\/limiter\u003c\/strong\u003e, or as a \u003cstrong\u003efiltering\u003c\/strong\u003e and \u003cstrong\u003etargeted listening\u003c\/strong\u003e tool (LISTEN function) to isolate and precisely work on the relevant spectral areas.\u003c\/p\u003e\u003ch3\u003eWho Should Use the \u003cstrong\u003eDerrEsser\u003c\/strong\u003e and When?\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eDerrEsser\u003c\/strong\u003e is aimed at sound engineers, producers, and home studio users equipped with a 500 chassis who seek a quick-to-set-up tool yet refined enough to handle challenging sources. On an \u003cstrong\u003eoverly bright vocal\u003c\/strong\u003e, a take with too much air, or EQ that has added harshness, it allows you to \u003cstrong\u003econtrol sibilance\u003c\/strong\u003e without losing diction or intelligibility. It is also relevant on sources rich in transients and harmonics (overheads, hi-hats, acoustics, distorted guitars, synths) whenever the upper spectrum becomes intrusive.\u003c\/p\u003e\u003cp\u003eThanks to its alternative modes, it can also be used as a \u003cstrong\u003ehigh-frequency softener\u003c\/strong\u003e (when the goal is not solely to treat \"S\" sounds), or as an \u003cstrong\u003eaudio filter\u003c\/strong\u003e with controlled slope. In mixing, it becomes an ally to tame aggressive areas without rewriting the EQ\u0026#59; in tracking, it secures a take while maintaining a natural sound\u0026#59; in bus processing, it can help contain unstable brightness that emerges at certain moments.\u003c\/p\u003e\u003ch3\u003eModes, Listening, and Dynamics: Surgical Control Without Complexity\u003c\/h3\u003e\u003ch4\u003eDS Mode: An Intelligent De-Esser Sensitive to Spectral Content\u003c\/h4\u003e\u003cp\u003eIn \u003cstrong\u003eDS mode\u003c\/strong\u003e (HF limiter disabled), the \u003cstrong\u003eThreshold\u003c\/strong\u003e control is used to tame sibilance and harshness. The behavior is \u003cstrong\u003esensitive to the ratio\u003c\/strong\u003e between high and low frequencies: the detector circuit compares the HF content to the LF content, and the overall signal level is not the determining factor. As soon as the HF becomes sufficiently dominant, the threshold is exceeded and the module \u003cstrong\u003eattenuates the band above\u003c\/strong\u003e the cutoff point set by the \u003cstrong\u003eFrequency\u003c\/strong\u003e control. The result is processing that targets the problem only when it appears, rather than constant reduction that darkens the source.\u003c\/p\u003e\u003ch4\u003eHF LIMIT Mode: Gently Limiting\/Compressing the High Spectrum\u003c\/h4\u003e\u003cp\u003eThe \u003cstrong\u003eHF LIMIT\u003c\/strong\u003e mode analyzes only the overall level of the high frequencies, similar to a high-frequency-oriented compressor. When the highs exceed the threshold, gain is reduced. This mode is \u003cstrong\u003emore level-dependent\u003c\/strong\u003e and particularly sensitive to high frequencies: ideal for \u003cstrong\u003esoftening\u003c\/strong\u003e an overly sharp brightness, smoothing piercing cymbals, or taming aggressive attacks while preserving the low-mid intact. The behavior is described as a \u003cstrong\u003eSoft Knee HF limiter\u003c\/strong\u003e, designed to remain gradual and musical.\u003c\/p\u003e\u003ch4\u003eLISTEN Function and HIGHPASS \/ LOWPASS Modes: Filter and Hear What You Are Processing\u003c\/h4\u003e\u003cp\u003eBeyond Bypass, the button logic allows access to listening and filtering modes. Using \u003cstrong\u003eLISTEN\u003c\/strong\u003e, the DerrEsser becomes a very practical working tool: you can isolate what the dynamic section is detecting and processing, to adjust faster and more accurately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHIGHPASS\u003c\/strong\u003e (Bypass button pressed, Listen button pressed, HP\/LP button released, regardless of HF LIM button position): you hear the \u003cstrong\u003ehigh frequencies\u003c\/strong\u003e processed by the dynamic\/compression circuits. The \u003cstrong\u003ecutoff frequency\u003c\/strong\u003e is adjusted by the \u003cstrong\u003eFrequency\u003c\/strong\u003e knob. Once LISTEN is activated, \u003cstrong\u003eall LEDs\u003c\/strong\u003e on the level meter should light up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLOWPASS\u003c\/strong\u003e (Bypass activated, Listen activated, HP\/LP activated, regardless of HF LIM button position): you hear the \u003cstrong\u003elow frequencies\u003c\/strong\u003e, those not affected by the VCA and dynamic\/compression circuits. The filter offers a \u003cstrong\u003e12 dB per octave slope\u003c\/strong\u003e, with an adjustable cutoff frequency via the \u003cstrong\u003eFrequency\u003c\/strong\u003e knob, useful for verifying what you leave intact and adjusting the overall balance.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eVCA selected for low-noise, low-distortion operation with no operational noise\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cstyle\u003e@media(max-width:632px){table[data-wb-spec]{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}table[data-wb-spec] colgroup{display:none}table[data-wb-spec] tbody,table[data-wb-spec] tr{display:contents}table[data-wb-spec] td{display:block;overflow-wrap:anywhere;grid-row:var(--wb-l);background-color:var(--wb-lb)}table[data-wb-spec] td[data-r]{grid-row:var(--wb-r);background-color:var(--wb-rb)}table[data-wb-spec] td[colspan=\"2\"]{grid-column:1\/-1}table[data-wb-spec] td:empty{display:none}}\u003c\/style\u003e\n\u003ctable data-wb-spec style=\"width:100%;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003c\/colgroup\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:1;--wb-r:2;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eequalizer\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eEQ\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eFilter\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable data-wb-spec style=\"width:100%;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003c\/colgroup\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:1;--wb-r:12;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFormat\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eAPI 500\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eHigh-band behavior\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003esmooths the highs, with a Soft Knee characteristic\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:2;--wb-r:13;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003emultifunction dynamic filtering processor\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eHIGHPASS\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eBypass engaged, Listen engaged, HP\/LP disengaged, independently of HF LIM\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:3;--wb-r:14;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eArchitecture\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eactive crossover filter dividing the signal into two bands (low frequencies \/ high frequencies)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eHIGHPASS monitoring\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ehigh frequencies processed by the dynamics\/compression circuits\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:4;--wb-r:15;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eGain control\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eVCA (Voltage Controlled Amplifier) dedicated to attenuating the high band\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eLOWPASS\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eBypass engaged, Listen engaged, HP\/LP engaged, independently of HF LIM\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:5;--wb-r:16;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDS mode\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ede-esser processing with the HF limiter disabled\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eLOWPASS monitoring\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003elow frequencies unaffected by the VCA and dynamics processing\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:6;--wb-r:17;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDetection\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ecomparison of the HF content against the LF content (the overall signal level is not decisive)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eFilter slope\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e12 dB per octave\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:7;--wb-r:18;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eThreshold control\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003emanages the intervention threshold for sibilance and harshness\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eCrossover frequency control\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eFrequency knob\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:8;--wb-r:19;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFrequency control\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003edefines the crossover point, with attenuation above this frequency\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eWith LISTEN engaged\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eall LEDs on the level display should light up\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:9;--wb-r:20;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFilter\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eactive\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eBypass\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ebypass mode and access to combinations of modes with LISTEN and HP\/LP\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:10;--wb-r:21;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eHF LIMIT mode\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eanalyzes the overall high-frequency level only\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eKeys\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eListen, HP\/LP, HF LIM (depending on the mode)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:11;--wb-r:22;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eGain reduction trigger\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eHF exceeding the threshold\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003elevel LEDs (all lit when LISTEN is engaged)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Empirical Labs","offers":[{"title":"Default Title","offer_id":54356961558803,"sku":"184962","price":595.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0872\/6803\/files\/077f6a46bfbaaffcf8de41f0c7af608003633666_1EMPIRICALLABS_DERRESSV.jpg?v=1793373078"},{"product_id":"empirical-labs-el-rx-docderr-horizontal-185000","title":"EL-RX Docderr Horizontal","description":"\u003ch3\u003eA DocDerr Module Designed for the ELI 500 Range: Compactness, Consistency, and a \"Studio Ready\" Approach\u003c\/h3\u003e\u003cp\u003eAfter more than two years of development and testing, the \u003cstrong\u003eDocDerr EL-Rx\u003c\/strong\u003e was designed to concentrate, in a compact and immediately usable format, a powerful and musical analog processing chain. It fits within the philosophy of the \u003cstrong\u003eELI 500\u003c\/strong\u003e modules: premium sound, straightforward ergonomics, and clean integration into a dedicated powered rack, with \u003cstrong\u003ehorizontal or vertical orientation\u003c\/strong\u003e depending on your setup.\u003c\/p\u003e\u003cp\u003eThis product line logic is also reflected in production-oriented features: the possibility of \u003cstrong\u003estereo linking\u003c\/strong\u003e to work on buses or stereo tracks, and an architecture that emphasizes sonic results rather than complex settings.\u003c\/p\u003e\u003ch3\u003eFor Whom and For What Uses: Recording, Mixing, and \"Studio\" Sound on Stage\u003c\/h3\u003e\u003cp\u003eThe DocDerr is aimed at sound engineers, producers, and musicians who want to \u003cstrong\u003eshape a source right at the input\u003c\/strong\u003e or add a premium finish to the mix without multiplying devices. In recording, it excels at stabilizing dynamics, sculpting the spectrum, and controlling transients while preserving musicality. In mixing, it becomes a quick tool to \"anchor\" a track, add density, and manage highs with elegance.\u003c\/p\u003e\u003cp\u003eThanks to its \u003cstrong\u003einstrument mode\u003c\/strong\u003e (internal micro switch) and low noise floor, it is also perfectly suited for acoustic instruments (acoustic guitar, strings, percussion), basses, synths, and world music instruments, including in live contexts where a \"console\/studio\" sound on stage is sought.\u003c\/p\u003e\u003ch3\u003eKey Features: Silent Preamplification, Targeted Equalization, Musically \"Intelligent\" Compression\u003c\/h3\u003e\u003ch4\u003ePreamp: Clean, Stable, Ready for Stage and Studio\u003c\/h4\u003e\u003cp\u003eThe preamplification section offers an \u003cstrong\u003eextremely low noise floor\u003c\/strong\u003e and accepts both \u003cstrong\u003eline-level\u003c\/strong\u003e and \u003cstrong\u003einstrument-level\u003c\/strong\u003e signals. For instruments, an internal micro switch allows the module to become an \u003cstrong\u003einstrument preamp\u003c\/strong\u003e with an additional \u003cstrong\u003e16 dB gain\u003c\/strong\u003e, ideal when you want attack, definition, and a solid level before processing.\u003c\/p\u003e\u003ch4\u003eEqualization: Powerful Filtering and Selected Frequencies for Speed\u003c\/h4\u003e\u003cp\u003eJust after the preamp, the equalization combines a \u003cstrong\u003e2-position high-pass filter\u003c\/strong\u003e and \u003cstrong\u003ethree parametric filters\u003c\/strong\u003e. The goal is clear: to offer effective and musical correction, with carefully selected frequency ranges to cover essential adjustments (cleaning low end, removing resonance, opening upper mids, adding air) without wasting time.\u003c\/p\u003e\u003ch4\u003eDynamics: Empirical Labs Compression and Tape Emulation to Smooth Transients\u003c\/h4\u003e\u003cp\u003eThe dynamics section offers a unique approach: a \u003cstrong\u003ecompression renowned for its musicality\u003c\/strong\u003e, combined with an \u003cstrong\u003eanalog tape emulation circuit\u003c\/strong\u003e. This duo softens high frequencies, manages transients, and adds a sense of cohesion, particularly useful on vocals, acoustic instruments, basses, or sources rich in attacks.\u003c\/p\u003e\u003cp\u003eThe \"one knob\" philosophy emphasizes speed: you find an effective dynamic control point without getting locked into complex settings, while maintaining a usable result in a professional context.\u003c\/p\u003e\u003ch4\u003e\"Mix\" Control: Parallel Compression Without External Patch\u003c\/h4\u003e\u003cp\u003eThe \"Mix\" function is one of the most creative signatures of the DocDerr. It allows you to \u003cstrong\u003eblend the uncompressed signal\u003c\/strong\u003e from the equalizers with the \u003cstrong\u003ecompressed and saturated signal\u003c\/strong\u003e. This provides \u003cstrong\u003eparallel compression\u003c\/strong\u003e directly within the module: more density and stability while preserving the natural attack and dynamics of the source. This method is widely used in recording and mixing to broaden the sonic palette, add body, and maintain a consistent presence in the mix.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cstyle\u003e@media(max-width:632px){table[data-wb-spec]{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}table[data-wb-spec] colgroup{display:none}table[data-wb-spec] tbody,table[data-wb-spec] tr{display:contents}table[data-wb-spec] td{display:block;overflow-wrap:anywhere;grid-row:var(--wb-l);background-color:var(--wb-lb)}table[data-wb-spec] td[data-r]{grid-row:var(--wb-r);background-color:var(--wb-rb)}table[data-wb-spec] td[colspan=\"2\"]{grid-column:1\/-1}table[data-wb-spec] td:empty{display:none}}\u003c\/style\u003e\n\u003ctable data-wb-spec style=\"width:100%;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003c\/colgroup\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:1;--wb-r:2;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eequalizer\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eEQ\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e3 channels\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable data-wb-spec style=\"width:100%;table-layout:fixed\"\u003e\n\u003ccolgroup\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003ccol style=\"width:25%\"\u003e\u003c\/colgroup\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:1;--wb-r:10;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eProcessing sections\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e6, analogue, digitally controlled\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eLinking\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003estereo for stereo tracks\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:2;--wb-r:11;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFrequency response\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e3 Hz to 180 kHz in the equalization section (within -3 dB)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eWith the powered EL500 Rack enclosure\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ea key enables linking\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:3;--wb-r:12;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDynamic range\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e120 dB between minimum and maximum output level (THD of 0.5 percent, soft clipping)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eInput impedance\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e120 kOhms (Instrument In input)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:4;--wb-r:13;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eBackground noise (Mix at 0)\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e-91 dBu (typical value)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eOutput impedance\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eless than 75 ohms\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:5;--wb-r:14;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDistortion range\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ebetween 0.0006 percent and 10 percent at 1 kHz, depending on the mode and settings\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eSupplied accessory\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eguitar adapter cable\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:6;--wb-r:15;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eInput level before hard clipping\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e+22 dBm (\u0026quot;line input\u0026quot; mode)\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eEL500\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:7;--wb-r:16;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eMaximum output level (Mix at 0)\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e+28.5 dBm\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eAvailable orientations\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ehorizontal or vertical\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:8;--wb-r:17;--wb-lb:transparent;--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eAttack\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eapproximately 1 ms\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eVertical configuration\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003ealso available for vertical Rack enclosures\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:9;--wb-r:18;--wb-lb:var(--wb-neutral-50);--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eRecovery\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003einternally fixed at approximately 0.2 s\u003c\/td\u003e\u003ctd data-r colspan=\"2\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Empirical Labs","offers":[{"title":"Default Title","offer_id":54362188644627,"sku":"185000","price":979.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0872\/6803\/files\/cf033316ea213ba601d7382eb29bf42330d3afba_EMPIRICALLABS_DOCDERR.jpg?v=1793372998"}],"url":"https:\/\/woodbrass.shop\/collections\/modules-format-500-empirical-labs.oembed","provider":"Woodbrass.com","version":"1.0","type":"link"}