Arcam say the the rHead is “ultra-low-distortion, ultra-low-noise and totally musical. Timing is fast and precise, with well-controlled bass and although the output is very wide-band, the extended treble is smooth and flat with no artificial exaggerations. Dynamic headroom is massive and all headphones we know of are handled with ease”.

– Class A design delivers zero crossover distortion for the purest sound.

– Extensively optimised 2 layer fibreglass PCB for cleanest sound and lowest crosstalk

– Multiple low noise power supplies eliminate cross-interference between sections

– Fully direct coupled signal path from the volume control for cleanest bass

– Ultra-linear resistive-ladder analogue volume control, eliminates L/R volume tracking errors

(taken from Arcam’s $6000+ flagship A49 amplifier)

– Precision metal film resistors in the signal path for lowest distortion

– Phono socket and balanced XLR inputs

– 3.5mm and 6.25mm headphone outputs

– Output impedance <0.5Ω eliminates frequency response errors

– Enough power to drive the least-efficient headphones

Other Bullet Points 

– Very high build-quality

– Die cast metal case for mechanically stable structure

– World-class analogue circuitry

– Vibration damped non-slip rubber base

Frequency response – 10Hz – 20kHz / +/- 0.1dB 20Hz–20 kHz