{"product_id":"aguilar-obp-2-bandes-avec-boost-stack-tb-et-bs-272342","title":"2-BAND OBP BASS PREAMPLES WITH BOOST (STACK TB AND BS)","description":"\u003ch3\u003eOBP: Aguilar's Vision of a Simple, Musical, and Ultra-Dynamic Onboard Preamp\u003c\/h3\u003e\u003cp\u003eThe Aguilar OBP-1 is designed for bassists who want to switch to active electronics without \"altering\" the instrument's voice. Its approach is intentionally streamlined: a 2-band \u003cstrong\u003eboost-only\u003c\/strong\u003e EQ, designed to enhance what already exists (more fundamentals, more air and definition), rather than extreme sculpting. Within the OBP range, it positions itself as a \u003cstrong\u003edirect, organic, and effective\u003c\/strong\u003e solution, perfect for adding more body and presence to a passive bass (or modernizing an active bass with an aging preamp). \u003c\/p\u003e\u003ch3\u003eFor Which Bassists and Styles?\u003c\/h3\u003e\u003cp\u003eThe OBP-1 suits both bassists looking for a first \"serious\" upgrade and seasoned musicians who want reliable electronics with immediate adjustment. The 40 Hz boost adds \u003cstrong\u003edepth\u003c\/strong\u003e for funk, pop, reggae, and heavy grooves, while the 4 kHz boost restores \u003cstrong\u003epresence\u003c\/strong\u003e and bite to cut through rock, metal, or fusion mixes.\u003c\/p\u003e\u003cp\u003eLive, it's typically the kind of preamp that lets you \u003cstrong\u003ego from a round tone to a cutting sound\u003c\/strong\u003e without touching the amp. In the studio, its headroom reserve helps maintain a clean and dynamic attack, especially on aggressive playing, slap, or high-output basses. It's also found installed on \"signature\" instruments, for example on models associated with Flea in active configuration. \u003c\/p\u003e\u003ch3\u003eControls, Versions (SK\/TK), and Integration into Your Bass\u003c\/h3\u003e\u003cp\u003eThe Aguilar OBP-1 offers two EQ controls: \u003cstrong\u003eBass\u003c\/strong\u003e (centered at 40 Hz) and \u003cstrong\u003eTreble\u003c\/strong\u003e (centered at 4 kHz), with a maximum boost amplitude of \u003cstrong\u003e18 dB\u003c\/strong\u003e on each band. The idea is to let you shape the energy in the low end and openness in the high end while maintaining a tone base very close to passive when the EQ is neutral (knobs at minimum).\u003c\/p\u003e\u003cp\u003eErgonomically, you choose the kit best suited to your instrument: \u003cstrong\u003eOBP-1SK\u003c\/strong\u003e if you want to save space thanks to the \u003cstrong\u003estacked\u003c\/strong\u003e potentiometer (single hole), or \u003cstrong\u003eOBP-1TK\u003c\/strong\u003e if you prefer two separate pots, faster to adjust on the fly. The OBP-1 is wired with an output jack that switches power: when you insert a \u003cstrong\u003e6.35mm Jack\u003c\/strong\u003e, the electronics are powered (classic principle of active basses). \u003c\/p\u003e\u003ch3\u003eSound Signature\u003c\/h3\u003e\u003cp\u003eThe OBP-1's signature is a \u003cstrong\u003ewide\u003c\/strong\u003e and \u003cstrong\u003emusical\u003c\/strong\u003e sounding boost. The 40 Hz low end enhances the sense of \"body\" and note solidity, ideal for thickening a thin bass or adding authority to fingerstyle playing. The 4 kHz treble boost highlights attack, snap, and harmonic clarity: perfect for restoring bite to a neck pickup, clarifying a pick line, or making slap stand out without making the sound harsh.\u003c\/p\u003e\u003cp\u003eThanks to its all-FET circuit and high headroom, the dynamics remain very responsive: the OBP-1 follows your right hand, handles transients, and keeps an \"instrument\" feel rather than a \"gadget\" feel. At 18V, you gain even more headroom before saturation, a real plus with powerful pickups or very aggressive attack. \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:3;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\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)\"\u003ebass preamp\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)\"\u003e2 channels\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:2;--wb-r:4;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eTechnology\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eall-Fet\u003c\/td\u003e\u003ctd data-r colspan=\"2\"\u003e\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:var(--wb-neutral-50);--wb-l:1;--wb-r:5;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eMaximum boost\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e18 dB\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eOBP-1TK\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eseparate Treble and Bass potentiometers\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:2;--wb-r:6;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eLow boost frequency\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e40 Hz\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eOBP-1SK\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003estacked Treble\/Bass potentiometer\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:var(--wb-neutral-50);--wb-l:3;--wb-r:7;--wb-lb:transparent;--wb-rb:transparent\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eHigh boost frequency\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e4 kHz\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003ePower supply\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e9V or 18V (via 1 x 9V battery or 2 x 9V batteries)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr style=\"background-color:transparent;--wb-l:4;--wb-r:8;--wb-lb:var(--wb-neutral-50);--wb-rb:var(--wb-neutral-50)\"\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eOutput impedance\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003e600 ohms\u003c\/td\u003e\u003ctd data-r style=\"text-align:left\"\u003e\u003cstrong\u003eConsumption\u003c\/strong\u003e\u003c\/td\u003e\u003ctd data-r style=\"text-align:left;font-weight:var(--font-body-weight-bolder)\"\u003eapproximately 1.1 mA at 9V (commonly measured value)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Aguilar","offers":[{"title":"Default Title","offer_id":54334420418835,"sku":"272342","price":185.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0872\/6803\/files\/7e018f310cb9bbcec0bb21806d78b79d12043090_MAG_OBP_1SK.png?v=1789671860","url":"https:\/\/woodbrass.shop\/products\/aguilar-2-band-obp-bass-preamples-with-boost-stack-tb-and-bs-272342","provider":"Woodbrass.com","version":"1.0","type":"link"}