Model

EQ-2231

Inputs

connectors

1/4″TRS,female XLR(pin 2 hot),and barrler terminal 

strip 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),and barrler terminal 

strip Type

Balanced/unbalanced,RF filtered

Impedance

Balanced 120Ω,unbalanced 60Ω

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

Noise Reduction In

(＋/－6 and ＋/－15dB range)

Signal-to-Noise

＞100dB,unweighted,ref:＋4dBu,22KHz measurement bandwidth

Dynamic Range

＞118dB,unweighted

Noise Reduction Out

(＋/－6dB range)

Signal-to-Noise

＞94dB,unweighted,ref:＋4dBu,22KHz measurement bandwidth

Dynamic Range

＞112dB,unweighted

Noise Reduction Out

(＋/－15dB range)

Signal-to-Noise     

＞90dB,unweighted,ref:＋4dBu,22KHz measurement bandwidth 

Dynamic Range

＞108dB,unweighted

THD＋Noise

＜0.04%,0.02%typical at ＋4dBu,1KHz＜0.5%, at 1KHz with 15dB gain reduction

Interchannel Crosstalk

＜－80dB,20Hz to 20KHz (2215/2231)

Noise Reduction

Up to 20dB of dynamic broadband noise reduction

Function Switches

EQ BYPASS         

Bypasses the graphic equalizer section in the signal 

path

LOW CUT(recessed)

Activates the 40Hz 18dB/octave Bessel high-pass filter

RANGE(recessed)       

Selects either ＋/－6dB or ＋/－15dB slider boost/cut 

range

Indicators

Output Level      

4-LED bar graph (Green,Green,Yellow,Red) at－10,0,＋10,and ＋18dBu

Gain Reduction

4-LED bar graph (all Red) at 0,3,6,and 10dB

Power Supply

Operating Voltage

100VAC 50/60Hz, 120VAC 60Hz;230VAC 50/60Hz

Mains Connection

28W

Physical

Dimensions

5.25″H×19″W×7.9″D (134×483×201mm)

Weight

10.6lbs. (4.8Kg)

Shipping Weight

11.6lbs. (5.3Kg)