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dbx 231s 31-Band Equalizer

Dual-channel 31-band graphic equalizer, 112 dB dynamic range, 10Hz to 50kHz frequency response

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The Benchmark of Live EQs

Dbx is known for their reliable graphics EQs, and the dbx 231s dual-channel 31-band graphic equalizer lives up to the legacy - providing 1/3-octave Constant Q control beyond the audible frequency spectrum. Equipped with a switchable +/-6dB or +/-12dB, the dbx 231s gives you fine control and superb sound quality. And with over 108dB of dynamic range, you know your sound is in good hands when you trust it to the dbx 231s graphic EQ.

With even more features such as 20mm nonconductive sliders, an intuitive user interface, and output level metering, the dbx 231s is the professional's choice in signal processing. Sure to find a home in the studio, on tour and with installed sound venues, the dbx 231s is destined to take its rightful place in the lineage of great dbx signal processors that guarantee you will always sound your best.

dbx 231s Features:
  • Dual 31-band, 1/3-octave Constant Q frequency bands
  • Switchable boost/cut ranges of ±6 or ±12 dB
  • Front panel bypass switch
  • ±12 dB input gain range
  • 4-segment LED ladders for monitoring output levels
  • XLR and TRS Inpts and Outputs
  • Frequency Repsonse of <10Hz to >50kHz
  • Dynamic range of greater than 108dB
Specifications for the dbx 231s
dbx 231s Specifications:

INPUTS :
Connectors: 1/4” TRS, female XLR (pin 2 hot)
Type: Electronically balanced/unbalanced, RF filtered
Impedance: Balanced 40kΩ, unbalanced 20kΩ
Max Input Level: >+21dBu balanced or unbalanced
CMRR: >40dB, typically >55dB at 1kHz

OUTPUTS :
Connectors: 1/4” TRS, male XLR (pin 2 hot)
Type: Impedance-balanced/unbalanced, RF filtered
Impedance: Balanced 100Ω, unbalanced 50Ω
Max Output Level: >+21dBu balanced/unbalanced into 2kΩ or greater
+18dBm balanced/unbalanced (into 600Ω)


SYSTEM PERFORMANCE :
Bandwidth: 20Hz to 20kHz, +0.5/-1dB
Frequency Response: <10Hz to >50kHz, +0.5/-3dB
Dynamic Range: Typically >112dB
Signal-to-Noise: Typically >95dB
THD+Noise: <0.003%
Interchannel Crosstalk: <-90dB, 20Hz to 20kHz

FUNCTION SWITCHES :
EQ Bypass: Bypasses the graphic equalizer
section in the signal path
Low Cut: Activates the 50Hz 12dB/octave
high-pass filter
Range: Selects either +/- 6dB or +/- 12dB
slider boost/cut range

POWER SUPPLY:
Operating Voltage: 100-240VAC 50/60Hz
Power Consumption: 15 W
Mains Connection: IEC receptacle

PHYSICAL:
Weight: 6.2 lbs.(2.81 kg) Shipping weight 7.9 lbs. (3.58 kg)
Dimensions: 3.5” (8.9cm) H x 6”(15.24cm) D x 19” (48.26cm) W
Overall Rating:  N/A Number of Reviews: 0
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