1231은 1215와 같은 유산을 공유하지만, 2개의 31 1/3 옥타브 밴드
채널; ISO 주파수 센터; +-6dB과 +-15dB 사이에서 바뀔 수 있는 boost/cut 범위; +-12dB
입력 게인 범위; 18dB/octave 40Hz Bessel low-cut 필터; 균형맞은 입력과 출력; XLR,
베리어 트립과 1/4” TRS 콘넥터를 포함하고 있습니다.
Specificatons Value
INPUTS  
Connectors 1/4"" TRS, female XLR(pin 2 hot),
Type Electronically balanced/unbalanced,RF filtered
Impedance Balanced 40kohms, unbalanced 20kohms
Max Input Level >+21dBu balanced or unbalanced
CMRR >40dB,typically> 55dB at 1kHz
OUTPUTS  
Connectors 1/4"" TRS, male XLR (pin 2 hot)
Type Impdance-balanced/unbalanced, RF filtered
Impedance Balanced 200ohm, unbalanced 100ohms
Max Output Lever >+21dBu balanced/unbalanced
POWER SUPPLY  
Operating Voltage 100VAC 50/60Hz, 230VAC 50/60Hz
Power Consumption 24W