QUAD PA-One+

A highly versatile and user-friendly valve amplifier that has been designed to be the perfect match for any headphone devotee. Simple and effective with an amazingly wide variety of digital and analogue sources – balanced, RCA, coaxial, optical, USB; make it easy to listen to music without ever having to ponder on decoding different formats.
| Brand | QUAD |
| Model | PA-One+ |
| Frequency response | |
| Total harmonic distortion (%) | |
| Signal-to-noise ratio (dB) | 90 |
| Input impedance (Ω) | 50000 |
| Output impedance (Ω) | 32 |
| Gain (dB) | |
| Phono input | |
| Height (mm) | |
| Width (mm) | |
| Depth (mm) | |
| Weight (kg) |