dbx 231s User manual

Exceptional sound and rugged reliability
When the pros need an EQ, they turn to dbx. With a proven track record that spans four decades, dbx® EQ’s are the industry
standard for touring, studios, and audio installations. With the dbx heritage of revered pro EQs, the 231s meets the needs of
the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls.
The dbx 231s includes two 31-band channels of 1/3-octave equalization, ±12 dB input gain, switchable ±6 dB or ±12 dB
boost/cut range, 20mm nonconductive sliders, an intuitive user interface, and output level metering. From its extended
10Hz to 50kHz frequency response and 112 dB dynamic range to the quality componentry and meticulous attention to
detail, the 231s offers exceptional sound and rugged reliability that guarantees you will always sound your best.
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 are the professional’s choice in signal processing. With such
affordable quality, there’s no longer any excuse for compromising your sound.
<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 Inputs and Outputs
<Frequency Response of <10 Hz to >50kHz
<Dynamic range of greater than 108dB
Features
Who uses this product:
BANDS DJsSOUND
INSTALLATION STUDIO
Dual 31-Band Equalizer
231s Graphic EQ
dbx Professional
Products
8760 S. Sandy Pkwy.
Sandy, Utah 84070
801.568.7660 PHONE
801.568.7662 FAX
801.568.7583 INT’L FAX
[email protected]
www.dbxpro.com

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
2kΩor 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: 15W
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
Specifications
s
Dual 31-Band Equalizer
231s Graphic EQ
dbx Professional
Products
8760 S. Sandy Pkwy.
Sandy, Utah 84070
1.801.568.7660 PHONE
1.801.568.7662 FAX
1.801.568.7583 INT’L FAX
[email protected]
www.dbxpro.com
Part number: 18-0845
dbx engineers are constantly working to improve the quality of our products. Specifications are, therefore subject to change without notice.