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Key Features
The Quad 303 power amplifier retains its celebrated symmetrical triples output circuit, this re-engineered amp is known for its ultra-low distortion and stability, delivering pure, accurate sound even under demanding conditions. Upgraded with a complementary output stage and premium power transistors, the new 303 provides improved linearity and stability, producing a clear, engaging listening experience across all types of audio. With a power output of 50W per channel at 8 ohms (70W at 4 ohms) and high current capacity, it's well-suited to drive even the most demanding speakers, ensuring smooth performance with both modern and vintage setups.
Equipped with versatile connectivity options, including RCA and balanced XLR inputs, high-quality binding posts, and a 12V trigger input, the Quad 303 easily integrates into diverse audio systems. Its advanced feedback topology supports thermal stability and excellent linearity, preserving audio quality without excessive heat, all within a compact chassis. The Quad 303's precise engineering makes it an ideal choice for audiophiles seeking a powerful yet refined sound. This meticulously crafted amplifier honours the essence of its predecessor while embracing technical innovation.
Product Ref: 318134
Model | QUAD 303 |
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General Description | Power Amplifier |
Design Philosophy and Core Technology | Class AB Power AmplifierQUAD 303 Triples Output StageCustom 200VA Toroidal TransformerStereo/Bridge mode selection |
Inputs | 1 x Line1 x XLR |
Outputs | 1 x 12V Trigger1 x Stereo Speaker1 x 12V Trigger (Link) |
Gain | +29dB |
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Rated Power Output | Stereo: 2 x 50W (8 ohms, THD<1 )Stereo: 2 x 70W (4 ohms, THD<1 )Bridged: 140W (8 ohms, THD<1 )Bridged: 170W (4 ohms, THD<1%) |
Frequency Response | 20Hz - 20kHz (+/-0.3dB) |
Total Harmonic Distortion (THD) | <0.002 (1kHz) |
Input Impedance | 10k ohms |
Input Sensitivity | 700mVrms (Line)1.5Vrms (XLR) |
Signal-to-Noise Ratio (S/N) | > 108dB (A - weighted) |
Max. Output Current | 10A |
Standby Power Consumption | <0.5W |
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Net Weight | 8.4kg |
Gross Weight | 9.5kg |
Dimensions (mm) (W x H x D) | 120 x 176 x 325 |
Carton Size (mm) (W x H x D) | 226 x 312 x 462 |
Finish | Classic QUAD Grey |
Power Requirements (depending on region) | 220 - 240V - 50 / 60Hz100 - 120V - 50 / 60Hz |
Product Code | QUAD-303 |
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