Key Features
- Modernisation of the Quad 33 and 303
- Balanced XLR inputs and outputs for pristine sound clarity
- Motorised ALPS volume control for precise, remote adjustments
- Ultra-low distortion for precise, high-quality sound
- High current capacity to drive demanding speakers effortlessly
Quad 33 and 303 Pre and Power Amplifier Bundle (2024 Edition) Overview
The Quad 33 preamp and 303 power amplifier are a classic pairing, thoughtfully reimagined for modern audio enthusiasts. Honouring their iconic predecessors, these updated models work to deliver exceptional sound. The 33 preamp’s precise tone controls and adaptable phono stage perfectly complement the 303 amplifier’s distortion-minimizing "symmetrical triples" circuitry and refined power output. Together, they create a balanced and dynamic soundstage that combines timeless design with contemporary performance, making this duo a benchmark for high-fidelity audio.
Find out more about these products below.
Product Ref: 318281
Full Description
View Full DescriptionThe 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 meticulous design includes a precision ALPS motorised volume control, responsive via remote for seamless adjustments.
In terms of tone control, the Quad 33 features adjustments like tilt, bass, and balance, allowing customisation 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 optimising the sound to match room acoustics or source material. With its sleek backlit display and intuitive button layout, the Quad 33 merges modern design with high-end functionality, promising enduring quality and sonic excellence 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 eight ohms (70W at four 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 honours the essence of its predecessor while embracing technical innovation.
Package includes
Quad 33 Pre-amp
| General Description | Pre Amplifier |
|---|---|
| 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) |
| 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) |
| 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) |
| Output Impedance | 2.35 ohms |
| Load Impedance | 20 - 600 ohms |
| Standby Power Consumption | <0.5W |
| 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 |
Quad 303 power-amp
| 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 |
| 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 |
| 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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