Quad PA-ONE Headphone Amplifier


The QUAD PA-One is a highly versatile, user-friendly headphone and pre amplifier. It combines classic quad valve topology with a modern selection of digital inputs and outputs for low and high impedance headphones too.

Category: Tag: Product ID: 9601


With classic QUAD styling and a life-like sound quality, the PA-One is perfect for enjoying music personally via your laptop as well as being an integral pre-amp in a larger hi-fi system too.


Input Impedance 50k Ω
Output Power 500mW at 32 Ω
Output Impedance 32 Ω – 300 Ω
Impedance Modes High / Low
Input Sensitivity 300mV (500mW at 32 Ω)
Frequency Response 15Hz – 30Hz (+0.5dB, 0.5dB)
Distortion 0.5% at 1kHz
Channel Balance +0.5% at 1 kHz
S/N Ration (ref. 500mW) 105dB (IHF-A)
Inputs XLR Inputs, RCA Phono, Coaxial, Optical & USB
Outputs 2 x 6.3mm Jack headphone socket, RCA Phono
Digital Resolution 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176kHz, 192kHz
Valves 2 x 66SL7, 2 x 6SN7, 1 x EZ81
Size (W x D x H) 180mm x 284.5mm x 163.5mm
Net Weight 7.5kg