SoundImpress PU400-1CH Mono Amplifier | Eigentakt | Powered by Purifi

The SoundImpress PU400-1CH Mono Amplifier represents a paradigm shift in high-fidelity amplification, delivering an extraordinary 425 watts into 4 ohms with breathtaking precision. This single-channel powerhouse is engineered for audiophiles and professional users who demand reference-grade performance from their audio systems. Whether driving a high-end subwoofer, powering a dedicated centre channel in a home cinema setup, or bi-amping a pair of demanding loudspeakers, the PU400-1CH provides the headroom and clarity required to reveal every nuance in your music or film soundtrack.

At the heart of this amplifier lies Purifi's revolutionary Eigentakt topology, a self-oscillating Class D design that achieves an astonishingly low total harmonic distortion of just 0.00017% THD+N at 100 watts into 4 ohms. The frequency response extends from DC to 60 kHz, ensuring phase-linear reproduction across the entire audible spectrum and beyond. With a signal-to-noise ratio of 131 dB, the noise floor is virtually immeasurable, allowing even the most delicate musical passages to emerge from an utterly black background. The robust aluminium chassis houses a highly efficient power supply that accepts both 110 V and 230 VAC via a standard IEC C14 connector, while the single XLR input ensures a balanced, interference-free connection. Rated at 425 watts into 4 ohms, 450 watts into 2 ohms, and 227 watts into 8 ohms, this amplifier delivers effortless control over any loudspeaker load. Experience the pinnacle of mono amplification with the PU400-1CH, where cutting-edge engineering meets uncompromising sonic purity.