dbx 215S - Digital Zone Processor

dbx 215s - Dual 15-band (2/3 octave) graphic equalizer with Constant Q, 50 Hz Low Cut, and LED meters

The dbx 215s is a 15-band, 2/3-octave stereo graphic equalizer ideal for live PA, studio, and fixed installation applications when you need fast, accurate, and repeatable adjustments. Its Constant Q architecture maintains band selectivity at any cut/boost level, while the switchable ±6 dB / ±12 dB range allows for fine-tuning to more aggressive tweaking. It features ±12 dB input gain , a 50 Hz (12 dB/oct) low cut filter for deep bass cleanup, non-conductive 20 mm faders , and 4-segment LED output meters for at-a-glance level monitoring.

With balanced XLR and 1/4" TRS inputs and outputs , a response of <10 Hz to >50 kHz , and a dynamic range of >108 dB (typically >112 dB ), the 215s delivers clean sound and enough headroom for any professional audio chain. All this in just 1U of rack space (44.5 × 482.6 × 152.4 mm), with a robust construction for years of intensive use.

Main features

• Dual 15 bands per channel (2/3 octave) with Constant Q.
• Switchable equalization range : ±6 dB or ±12 dB .
• Adjustable input gain ±12 dB .
• Low Cut at 50 Hz (high-pass 12 dB/oct) and bypass from the front.
• Measurement : 4-segment LED output VU meters.
• Professional connectivity : balanced XLR and TRS 1/4" .
• Performance : <10 Hz–>50 kHz (+0.5/−3 dB), DR >108 dB (typ. >112 dB), THD+N <0.003 % .
• Compact 1U form factor with 20mm non-conductive sliders.

Product benefits

• Fast and visual correction : 15 bands/CH with faders that allow you to “draw” the room curve.
• Musical and Consistent Control : Constant Q maintains selectivity at any setting level.
• Easy integration : Balanced XLR/TRS I/O, maximum level > +21 dBu and instant bypass.
• Clean sound : wide dynamic range, low distortion and 50 Hz filter to eliminate infra-band noise.

Use cases

• Live PA : room and monitor equalization, resonance control and headroom before feedback.
• Studio and broadcast : monitor retouching or tonal correction in outboard chains.
• Commercial installation : zone adjustment in bars, auditoriums, temples, gyms or multipurpose rooms.

Frequently Asked Questions

• Is it digital or analog? The 215s is a two-channel graphic analog equalizer .
• What's the difference from the 231s? The 231s offers 31 bands per channel (1/3 octave). The 215s offers 15 bands per channel (2/3 octave) in the same 1U format.
• Can I use it between the mixer and the power amp or as an insert? Yes, thanks to its balanced I/O and maximum output level of > +21 dBu.

Description for projects

dbx 215s 15-band/CH dual graphic equalizer (2/3 octave, Constant Q ); ±6/±12 dB switchable range ; ±12 dB input gain ; 50 Hz low cut (12 dB/oct) and EQ bypass ; 20 mm faders; XLR female and 1/4" TRS input connectors (electronically balanced, 40 kΩ bal./20 kΩ unbal., max. > +21 dBu, CMRR > 40 dB ); XLR male and 1/4" TRS outputs (100 Ω bal./50 Ω unbal., max. > +21 dBu at ≥ 2 kΩ; > +18 dBm at 600 Ω); Performance: <10 Hz–>50 kHz +0.5/−3 dB , usable band 20 Hz–20 kHz +0.5/−1 dB , DR typ. >112 dB (system >108 dB), THD+N < 0.003 % , crosstalk < −90 dB; power supply 100–240 V~ 50/60 Hz (IEC), power consumption 15 W ; 1U form factor ; dimensions 44.5 × 482.6 × 152.4 mm (H × W × D); weight 2.2 kg (shipping 2.8 kg).