1 EQ-231 Dual Channel 31-Band Graphic EQ
2 Front panel bypass switch

Two 31-band, 1/3-octave Constant Q frequency bands 
Switchable boost/cut ranges of ±6 or ±12 dB 
12dB per octave 40Hz low-cut filter 
Front panel bypass switch 
±12 dB input gain range 
4-segment LED ladders for monitoring output levels 
XLR and TRS Inpts and Outputs 
Internal Toroidal Transformer 
Frequency Repsonse of <10Hz to >50kHz 
Dynamic range of greater than 108dB

INPUT
Connectors:  1/4" TRS, female XLR (pin 2 hot) 
Type: Electronically balanced/unbalanced, RF filtered  Impedance: Balanced 40k ohm, unbalanced 20k ohm 
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-balanaced/unbalanced, RF filtered 
Impedance:  Balanced 100 ohm, unbalanced 50 ohm 
Max Output Level:  >+21dBu balanced/unbalanced into 2k ohm or greater                      
                   >+18dBm balanced/unbalanced (into 600 ohm)
 

SYSTEM PERFORMANCE
Bandwidth:  20Hz to 20kHz, +0.5/-1dB 
Frequency Response:  <10Hz to >50kHz, +0.5/-3dB 
Dynamic Range:  108dB  Signal-to-Noise:  90dB 
THD+Noise:  <0.004%  Interchannel Crosstalk:  <-80dB, 20Hz to 20kHz .