Quadraspire Q4 Evo Headphone Amps and tonally accurate

and tonally accurate

unbalanced RCA (simultaneous) Digital input S/PDIF coaxial up to 24-bit/96kHz Output impedance Less than 100 ohms Output noise (unweighted) Less than 0

and those who want flexible user-installable local storage alongside streaming

The three selectable output voltages make it easy to match gain with any connected amplifier or preamplifier

RIAA equalisation accurate to +/-0

Quadraspire Q4 Evo Headphone Amps and tonally accurateThe Quadraspire Q4 Evo is a modular hi fi rack system engineered to reduce resonance and lower the noise floor of any audio system built from solid bamboo ply shelves with solid (not tubular) aluminum columns and feet, designed without parallel lines, and configurable to any shelf height from 100mm to 326mm. Every shelf holds up to 80kg. Design Philosophy What you place your equipment on affects how it sounds. The Q4 Evo addresses this through three