Specifications ・Signal to Noise Ratio: 90 dB (20 Hz-20 kHz, unweighted) ・Maximum Gain @ 1 kHz: [Input] 24 dB; 45 dB, [Scrambler] in/max., [Aux] input 27 dB ・Tone Controls: [Bass] +14/-14 dB @40Hz, [Mid] +5/-11 dB @500Hz, [Treble] +16/-15 dB @4kHz ・Power Requirements: [Internal] 9 V Battery, [External] 9-12 VDC @ 100 mA ・Size (H x W x D): 56 x 193 x 110 mm ・Weight: 約1.2kg