Un-Balanced (Input / Output). Frequency Response 25 Hz – 20 KHz. Digital Echo 20 – 400 Mili Sec. Fader 30 mm for each Channel. Mic. Input 2K Ohms. Mono Line Input 10K Ohms. Gain : -10 dB to -50 dB. S/N Ratio 70 dB. Distortion 0.01%. Tone Control : Bass +16 dB, Mid +10 dB & Treble +16 dB. Effect Return : -30 dB Max. Effect Send (Pre Fader): 0 dB to 5.5V Max. Channel Signal Indication Clip LED. Output Metering 10 segment LED. Power Supply : 11VA / 9VA Max @ AC 220V / 50 Hz. ox.)