QUAD 303

Power Amplifier

Very few Hi-Fi components are as instantly recognisable as the QUAD 33 and 303, and for that we make no apologies!

Still one of the most popular models in the history of one of the world’s most poignant Hi-Fi brands, the QUAD 33 and 303 are benchmarks in almost every angle of desirable audio equipment – performance, reliability, industrial design, value and musical romance.

• General Description: Power Amplifier
• Design Philosophy and Core Technology: Class AB Power Amplifier, QUAD 303 Triples Output Stage, Custom 200 VA Toroidal Transformer, Stereo/Bridge mode selection
• Inputs: 1x Line, 1x XLR
• Outputs: 1x 12 V Trigger, 1x Stereo Speaker, 1x 12 V Trigger (Link)

Power Amplifier Section:

• Gain: +29 dB
• Rated Power Output: Stereo: 2x 50 W (8 Ω, THD < 1%); Stereo: 2x 70 W (4 Ω, THD < 1%); Bridged: 140 W (8 Ω, THD < 1%); Bridged: 170 W (4 Ω, THD < 1%)
• Frequency Response: 20 Hz - 20 kHz (±0.3 dB)
• Total Harmonic Distortion (THD): < 0.002% (1 kHz)
• Input Impedance: 10 kΩ
• Input Sensitivity: 700 mVrms (Line); 1.5 Vrms (XLR)
• Signal-to-Noise Ratio (S/N): > 108 dB (A - weighted)
• Max. Output Current: 10 A

General:

• Standby Power Consumption: < 0.5 W
• Finish: Classic QUAD Grey
• Power Requirements (depending on region): 220-240 V - 50/60 Hz; 100-120 V - 50/60 Hz
• Standard accessories: Power Cord, Remote Control, User Manual