Quad Artera Stereo Power

The Quad Artera Stereo Power is a dedicated stereo power amplifier that sets a new standard for current delivery, dynamic authority and musical composure at its price point — an amplifier built to extract the full potential of the finest preamplifiers and source components, and to drive demanding loudspeakers with unfaltering control. Producing 140 watts RMS per channel, the Artera Stereo Power is an instrument of extraordinary capability, engineered from first principles to honour Quad's unbroken commitment to accuracy of reproduction.

Current Dumping Technology

The defining technology of the Artera Stereo Power is Quad's patented Current Dumping circuit — one of the most celebrated innovations in the history of high-fidelity amplification, first conceived by Quad's engineers in the 1970s and continuously refined across five decades of development. Current Dumping resolves the fundamental compromise that has long divided amplifier design: the low distortion of Class A operation versus the thermal efficiency of Class B. By combining a precision low-power Class A amplifier with a high-efficiency output stage in a patented error-correction topology, the Artera Stereo Power achieves vanishingly low distortion across the full dynamic range — at whisper-quiet listening levels and at full orchestral climax alike — without the thermal instability or listening fatigue that afflicts conventional designs.

Signal Integrity and Connectivity

Signal integrity is paramount throughout the Artera Stereo Power's architecture. Balanced XLR inputs — newly developed for the Artera range — achieve a signal-to-noise ratio of exceptional standard, ensuring that every nuance delivered by the upstream preamplifier arrives at the output stage without degradation. The Artera Stereo Power is the natural and synergistic partner for the Quad Artera Pre preamplifier, together forming a pre/power combination of the highest order. For those whose loudspeakers demand still greater current reserves, the Quad Artera Mono monoblocks apply the same Current Dumping principles in a fully dual-mono configuration — the ultimate expression of Quad's power amplifier engineering.

Design and Build

The Artera Stereo Power's enclosure is built to the same exacting standards as every component in the range. A textured aluminium front panel, CNC-routed heatsinks on either side and a thick glass top combine to produce an amplifier that is as visually distinguished as it is technically accomplished — robust enough to perform under sustained high-power conditions, and refined enough to sit at the centre of any serious listening room. The Quad Artera Solus and Quad 3CDT complete the Artera system with the same engineering integrity and aesthetic coherence.

Buying from Martins Hi-Fi

Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind. The Quad Artera Stereo Power is available to audition in our Norwich showroom — speak to Dave or Chris to arrange a demonstration alongside the Artera Pre or your existing preamplifier.

Contact us at info@martinshifi.co.uk, call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.