DBX 215S
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Manufacturer Information
DBX
https://www.dbxpro.com
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The dbx Series 2: The "Pro" DNA Made More Accessible
With the Series 2, dbx has a clear goal: to maintain the "field" approach of its professional graphic equalizers while offering direct usability. This generation emphasizes simple ergonomics, rack-ready connectivity, and electronics touted as a significant advancement over more basic entry-level graphic equalizers.
The result is a processor that naturally fits into a modern audio chain, both for optimizing a system and ensuring reliable patching during live performances.
Who and What For: System Correction, Monitors, Installation Racks
This equalizer is aimed at users who want to correct a sound system, tame room resonances, adjust stage monitors, or achieve a consistent curve across multiple sources. Mounted in a rack, it becomes an effective tool to "clean up" a mix, balance a pair of speakers, or fine-tune a problematic frequency range without using a computer.
In the studio, it can also serve as a corrective equalizer on subgroups, headphone/monitoring mixes, or as a simple calibration tool in a production setup combining analog gear and an audio interface.
Key Features: Precision, Level Control, and Integration
1/3 Octave Equalization with Constant Q: Precise Adjustment, Clear Results
The constant Q topology ensures consistent behavior from band to band: you adjust, listen, and validate. The choice between +/-6 dB and +/-12 dB is particularly useful depending on the context: subtle correction in installations or more assertive intervention live when a frequency dominates.
Front Panel Bypass and Visual Monitoring: Essential in Real Conditions
The bypass switch facilitates instant A/B comparisons and secures the signal chain when needed. The 4-segment LED indicator helps monitor output levels at a glance, useful to avoid clipping and maintain a clean gain structure in a shared rack.
50 Hz High-Pass Filter: Control of Low End, Less Unnecessary Energy
The 50 Hz high-pass filter (slope 12 dB/octave) reduces vibrations, handling noise, hum, and excessive sub-bass that unnecessarily overloads the system. It is an effective ally for improving clarity and headroom, especially on monitors or compact speakers.
Reliability-Oriented Design: Non-Conductive Faders and Integrated Power Supply
The 20 mm non-conductive faders promote smooth operation and better durability over time. The integrated power supply with toroidal transformer simplifies rack integration and limits constraints related to external adapters, while contributing to stable power delivery.
Technical specifications
| Category | equalizer |
| Number of channels | 2 |
| EQ | 2 x 15 channels |
| Frequency response | 10 Hz - 50 kHz |
| Rack unit | 1 |
| Type | 2 x 15 bands 1/3 octave constant Q |
| Operating range | +/-6 dB and +/-12 dB (switchable) |
| High-pass filter | 12 dB/octave at 50 Hz |
| Faders | 20 mm non-conductive |
| Bypass | front panel switch |
| Level indication | 4-segment LED output level indicator |
| Inputs | 2 balanced inputs on XLR and 6.35 mm jack |
| Outputs | 2 balanced outputs on XLR and 6.35 mm jack |
| Distortion + Noise | > 95 dB |
| Signal-to-noise ratio | <0.003% |
| Dynamic range | > 112 dB |
| Crosstalk | <-90 dB, 20 Hz to 20 kHz |
| Input gain | +12 dB |
| Power supply | integrated with toroidal transformer |
| Size | 1U |
| Dimensions | 152.4 x 482.6 x 44 mm |
| Weight | 2.2 kg |
Questions frequently asked
Is the DBX 215S suitable for correcting stage monitors?
Its 2 channels of 15-band 1/3-octave equalization allow separate adjustment of two monitor circuits. The 50 Hz low-cut filter, with a 12 dB/octave slope, reduces excessive bass and vibrations.
What connectivity is available on this rack equalizer?
Each channel has a balanced input and output on XLR and 6.35 mm jack. This setup allows integration into a balanced audio patch.
Is it possible to choose between light or more pronounced correction?
The efficiency range can be switched between ±6 dB and ±12 dB. The constant Q setting maintains consistent behavior across the 15 bands of each channel.
How much rack space is required?
Only one 1U slot is needed, with dimensions of 482.6 x 44 x 152.4 mm and a weight of 2.2 kg.
Is the output level controllable on the front panel?
A 4-segment LED indicator shows the output level. The front panel bypass switch allows instant comparison between processed and unprocessed signals. The 20 mm non-conductive faders ensure band adjustment.
