For Quad PA-One headphones

Weight: 7.5 kg
Depth: 285 mm
Brand: Quad
Description: Type: headphone amplifier, standard: stereo, front channels power: 0.50 W/channel, circuit design: tube, music playback: built-in DAC, USB Type-B from computer, connectors and interfaces: USB Type-B, coac audio input
Transformer type: Toroidal
Width: 180
Height: 164
Type: Headphone Amplifier
Harmonic coefficient: 0.5 %
Signal to noise ratio: 105 dB
Connectors and interfaces: USB Type-B, Coaxial Audio Input, Stereo Audio Line Input, Optical Audio Input, Stereo Balanced Line Input, Preamp Output
Standard: Stereo
Number of channels: 2
Power: 0.5 W/channel
Music playback: Built-in DAC, from computer USB Type-B
Bit depth audio DAC: 24 bit
Sound setting functions: Balance adjustment
Audio DAC sample rate: 192 kHz
Connectors on the front panel: Headphone output
Lin sensitivity. entrance: 300 mV
Input impedance lin. entrance: 50 kOhm
Maximum playback frequency: 30000 Hz
Minimum repeatable frequency: 15 Hz
Circuit design: Lamp