Quad 303
Quad 303’s legendary performance and distinct design have earned it a lasting place in Hi-Fi history, becoming an icon recognised by audiophiles across generations. Today’s 303 carries on that legacy. The same dedication to design. The same striking looks. Now crafted for the contemporary listener.

QUAD 303 POWER AMPLIFIER
THE POWER OF TRIPLES
SWAGGER. MUSCLE. SHOWMANSHIP
PERFORMANCE FINESS BEFORE UNRULY POWER
THE FOREMAN OF HIGH FIDELITY
MORE POWER. MORE POSSIBILITIES
NOTHING LOST IN TRANSLATION
Design Philosophy / Core Technology |
Class AB Power Amplifier QUAD 303 Triples Output Stage Custom 200VA Toroidal Transformer Stereo / Bridge mode selection |
Inputs | 1 x Line, 1 x XLR |
Ouputs |
1 x 12V Trigger 1 x Stereo Speaker, 1 x 12V Trigger (link) |
Power Amplifier Section |
|
Gain | +29dB |
Rate Power Output |
Stereo: 2 x 50W (8ohms, THD<1%) Stereo: 2 x 70W (4ohms, THD<1%) Bridged: 140W (8ohms, THD<1%) Bridged: 170W (4ohms, THD<1%) |
Frequency Response |
20Hz - 20kHz (+/-0.3dB) |
Total Harmonic Distortion |
<0.002% (1kHz) |
Input Impedance |
10k ohms |
Input Sensitivity |
700mVrms (Line) 1.5Vrms (XLR) |
Signal-to-Noise-Ration (S/N) |
>108dB (A - weighted) |
Max. Output Current |
10A |
General |
|
Net Weight | 8.4kg |
Dimensions (W x H x D) | 325 x 176 x 120mm |
Finish | Classic QUAD Grey |