1231XL
Main Feature
- Switchable range between +/-6dB and +/-15dB
- Balanced input and output
- XLR, barrier strip and 1/4" TRS connector
- Input gain range -12dB/+12dB
- 18dB/octave 40Hz Bessel low cut filter
- Chasis/signal ground lift capability
Input
Connector 1/4" TRS, female XLR (pin 2 hot) and barrier 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
Output
Connector 1/4" TRS, male XLR (pin 2 hot) and barrier terminal strip
Type Impedance balanced/unbalanced, RF filtered
Impedance Balanced 200Ω, unbalanced 100Ω
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 (+/-6dB range) 115dB
Dynamic Range (+/-15dB range) 109dB
Signal to Noise (+/-6dB range ) 97dB
Signal to Noise (+/-15dB range) 90dB
THD+Noise < 0.005%
Interchannel Crosstalk < -80dB, 20Hz to 20KHz
Function Switch
EQ Bypass Bypass the graphic equalizer section in the signal path
Low Cut (recessed) Activate the 40Hz 18dB/octave Bessel high pass filter
Range (recessed) Select either +/-6dB or +/-15dB slider boost/cut range
Indicator
Output Level 4 LED bar graph at -10, 0, +10 and +18dBu
EQ Bypass Red LED
Clip Red LED
Low Cut Red LED
+/-6dB Range Yellow LED
+/-15dB Range Red LED
Power Supply
Operating Voltage 230VAC 50/60Hz
Power Consumption 24 Watts
Main Connection IEC receptacle
Physical
Dimension [HxWxD] 5.25" x 19" x 7.9" (13.4 x 48.3 x 20.1 cm.)
Weight 10.6 lbs. (4.8 kg.)
Shipping Weight 11.6 lbs. (5.3 kg.)