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Key Features
The Quad 33 preamp and 303 power amplifier are expertly designed to deliver a seamless, high-fidelity listening experience. The Quad 33 preamp offers a minimalist design with fully balanced XLR connections, precise tone controls, and adaptable phono-stage support for both Moving Magnet and Moving Coil cartridges, ensuring each audio source is captured with clarity and dynamic range.
The Quad 303 amplifier complements this with its refined power output and "symmetrical triples" circuitry, which minimizes distortion for a clean, stable sound. With 50W per channel, the 303 handles complex audio effortlessly, delivering detail and depth to match the preamp?s precision. Together, the Quad 33 and 303 create an immersive and highly accurate soundstage, tailored for discerning listeners.
Product Ref: 318281
The Quad 33 preamp has fully balanced XLR inputs and outputs, to ensure pristine audio performance with today's diverse sources. Its phono stage supports both Moving Magnet and Moving Coil cartridges, offering high gain with low noise and distortion, Perfect for vinyl enthusiasts who expect their records to sound as clean and dynamic as digital sources. The preamp's thoughtful design includes a precision ALPS motorized volume control, responsive via remote for seamless adjustments, delivering tactile and accurate control over your listening experience.
In terms of tone control, the Quad 33 features unique adjustments like tilt, bass, and balance controls, allowing customization without compromising the natural integrity of the audio signal. The tilt control offers a subtle way to shift sound warmth or brightness, balancing low and high frequencies with remarkable precision, ideal for optimizing the sound to match room acoustics or source material. With its sleek backlit display and intuitive button layout, the Quad 33 merges timeless design with high-end functionality, promising enduring quality and sonic excellence that's ready for the demands of modern listening.
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.
General Description | Pre Amplifier |
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Design Philosophy and Core Technology | Illuminated LCD screenDedicated High Performance Low Noise MM/MC Phono stageClassic QUAD 'Tilt' adjustmentClassic QUAD / Tone ControlsDedicated Current-Feedback Headphone Amplifier |
Inputs | 3 x RCA, 1 x Balanced XLR (pair), 1 x Phono (MM/MC switchable) |
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Outputs | 1 x RCA (AUX) 1 x XLR 1 x RCA (Pre Out) 1 x Headphone 2 x 12V Trigger Out |
Gain | 0dB (Line / XLR) +46dB (Phono MM) +63.5dB (Phono MC) |
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Input Sensitivity (Vout=695mV) | 695mV (Line / XLR) 3.2mV (Phono MM) 460uV (Phono MC) |
Input Impedance | 10k (Line / XLR) 47k/100pF (Phono MM) 100R/1.7nF (Phono MC) |
Total Harmonic Distortion (THD) | <0.0005 (1kHz, Line/XLR) 108dB (A-weighted, Line/XLR) > 82dB (A-weighted, Phono MM) > 74dB (A-weighted, Phono MC) |
Output Impedance | 120 ohms |
Total Harmonic Distortion (THD) | < 0.01 (1kHz, 50mW) |
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Output Impedance | 2.35 ohms |
Load Impedance | 20 - 600 ohms |
Standby Power Consumption | <0.5W |
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Net weight | 4kg |
Gross weight | 4.96kg |
Dimensions (mm) (W x H x D) | 258 x 82.9 x 165 |
Carton Size (mm) (W x H x D) | 330 x 192 x 257 |
Finish | Classic QUAD Grey |
Power requirements (depending on region) | 220 - 240V - 50 / 60Hz |
Power requirements (depending on region) | 100 - 120V - 50 / 60Hz |
Product Code | QUAD-33 |
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General Description | Power Amplifier |
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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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