Quad 303

Product Details

Product: Quad 303 Power Amplifier
Colour: Classic Grey

Product Description

The Quad 303 is a Class AB power amplifier that blends retro aesthetics with modern performance and stability. Thanks to its ‘triples output stage’ design, it delivers clean, precise, and musically warm sound that impresses at both low and high volumes. The controlled bass response, clear mids, and detailed highs result in a well-balanced audio experience.

With its robust construction and low heat generation, the Quad 303 is extremely reliable—even during extended listening sessions.

Technical Specifications

Power Output:
Stereo: 2 × 50 W at 8 ohms
Stereo: 2 × 70 W at 4 ohms
Bridged: 140 W at 8 ohms
Bridged: 170 W at 4 ohms

Frequency Response: 20 Hz – 20 kHz (±0.3 dB)
Total Harmonic Distortion (THD): <0.002% (1 kHz)
Signal-to-Noise Ratio: 108 dB (A-weighted)
Input Impedance: 10 kΩ

Input Sensitivity:
Line: 700 mVrms
XLR: 1.5 Vrms

Maximum Output Current: 10 A
Dimensions (W × H × D): 120 × 176 × 325 mm
Weight: 8.4 kg
Power Consumption in Standby: <0.5 W
Power Requirements: Region dependent (220–240 V / 100–120 V, 50/60 Hz)

Connections

Inputs:
1 × Line (RCA)
1 × XLR (balanced)

Outputs:
1 × 12V Trigger
1 × Speaker Output (stereo or bridged mode)

Features

• Triples Output Stage: Symmetrical output circuit that minimizes distortion and enhances stability.

• Bridge Mode: Allows use of two amplifiers for higher power output.

• 12V Trigger: Enables synchronization with other components.

• Retro Design: Preserves classic aesthetics while delivering modern performance.