Quad Artera Stereo The Quad Artera Stereo is a power amplifier that occupies a pivotal position in Quad's modern Artera range — engineered from the ground up to deliver 140 watts RMS per channel with the authority, control and musicality that Quad's heritage demands. From the transformer to the input terminals, every section of the Artera Stereo has been designed without compromise, producing an amplifier that drives first-class loudspeakers with unfaltering composure under the most demanding dynamic and transient conditions. Current Dumping Technology At the heart of the Artera Stereo is Quad's patented Current Dumping technology — one of the most significant circuit innovations in the history of high-fidelity amplification. First developed by Quad in the 1970s and refined across decades of continuous engineering development, Current Dumping eliminates the traditional trade-off between the low distortion of Class A operation and the efficiency of Class B. The result is an amplifier that operates with the purity of Class A at low signal levels, switching seamlessly to high-efficiency operation as power demands increase — delivering vanishingly low distortion across the full dynamic range without thermal instability or listening fatigue. Balanced XLR Inputs and Signal Integrity The Artera Stereo's balanced XLR inputs represent a further commitment to signal integrity. Newly developed for the Artera series, these robust connections achieve an incomparable signal-to-noise ratio — preserving every nuance of the source signal and ensuring that the full resolution of a high-quality preamplifier or DAC is transmitted to the output stage without degradation. The Artera Stereo rewards the finest upstream components, and is the natural partner for the Quad Artera Pre preamplifier — a combination that sets a new standard for musically coherent, high-resolution amplification at its price point. The Artera Range For those requiring still greater power, the Quad Artera Mono monoblocks apply the same Current Dumping principles in a fully dual-mono configuration. Those beginning their Artera journey may wish to consider the Quad Artera Solus — an all-in-one integrated solution built on the same engineering foundations. 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 is available to audition in our Norwich showroom — speak to Dave or Chris to arrange a demonstration with your chosen preamplifier and speakers. Contact us at [email protected], 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.
