Input Impedance: 10 kOhms Maximum Input Level: +18 dBV Max Gain: 26 dB per channel Maximum Output Power: 300 milliwatts per channel Output Impedance: 10 Ohms S/N Ratio: <90 dB THD: <.008% IMD (SMPTE): <.008% Power: 12 VAC (Adapter provided) Size: 8.4 x 1.7 x 5" (21.3 x 4.3 x 13 cm) Weight: 2.5 LBS (1.14 kg)