





6up for sale a famous Quad 909 power amp as cancel the project, in very good working condition. few marks and scratch around the case. see the photos. The Quad 909 is a high-fidelity stereo power amplifier that exemplifies the British brand’s legacy of precision engineering, sonic neutrality, and musical accuracy. At the core of the 909’s performance lies its implementation of Current Dumping technology, a proprietary amplification method developed by Quad’s founder Peter Walker. This innovative circuit topology allows the amplifier to deliver the power and authority of a high-current amplifier while maintaining the finesse and accuracy of a low-power Class A amplifier. This design results in exceptionally low distortion, wide dynamic range, and a characteristically open, unforced presentation. The Quad 909 is rated to deliver 140 watts per channel into 8 ohms, and up to 250 watts per channel into 4 ohms, ensuring robust headroom and stable operation across a broad range of speaker impedances. Despite these impressive power ratings, the amplifier maintains Quad’s traditional design ethos, focusing on musical realism rather than brute-force amplification. It can drive both vintage and modern speakers with equal authority, offering excellent control over bass transients, delicate retrieval of low-level detail, and a cohesive soundstage presentation. https://www.whathifi.com/quad/909/review. pick up only at Henderson, Auckland.
