Mains powered (IEC) pre-amplifier, 5 x line level gold-plated RCA inputs and 2 x buffered tape loops. Uses a 6111 twin triode and uses relay signal switching QC- twenty four Monobloc Power Amplifier Specifications Valve complement 1 x 6111 twin triode Total Harmonic Distortion at 1V RMS <0.2%, 0.02% @ 1W Frequency Response 5Hz to 50kHz (+0 / -0.5dB) Hum and Noise better than -80dB Line Stage Gain 15dB Recommended minimum load 50k ohms Inputs 5 x line level 2 x buffered tape loops