QUAD 33 & 303 Pre/Power Amplifier Combination

Description

Quad 33 & 303 Pre/Power Amplifier Combination

The Quad 33 & 303 combination brings one of British hi-fi’s most iconic amplifier pairings into the modern era.

Inspired by the original Quad 33 preamplifier and 303 power amplifier, this new-generation pairing retains the compact proportions, distinctive styling and analogue focus of the originals while introducing balanced connectivity, MM/MC phono support, improved power delivery and modern system control.

Together, the 33 and 303 create a beautifully matched pre/power system with genuine heritage, contemporary engineering and the flexibility to suit a wide range of modern hi-fi systems.

A Modern Reworking of a Classic Pairing

The original Quad 33 and 303 became one of the company’s most recognisable combinations, and the modern versions have been designed to preserve that identity without simply recreating the past.

The new 33 keeps the compact format, tactile controls and Tilt function that helped define the original, while the 303 retains its distinctive upright proportions and Class AB architecture.

Internally, however, both units have been completely re-engineered to deliver the lower noise, wider bandwidth, greater current capability and improved connectivity expected from a modern hi-fi system.

Quad 33 Analogue Preamplifier

The Quad 33 acts as the control centre of the system, providing a fully analogue signal path with a precision motorised ALPS volume control, multiple line inputs and both RCA and balanced XLR connectivity.

A dedicated phono stage supports both moving magnet and moving coil cartridges, making the 33 particularly appealing to vinyl listeners who want to avoid adding a separate phono preamplifier.

Quad’s distinctive Tilt control is also retained, allowing the overall tonal balance to be subtly adjusted without relying on conventional bass and treble controls alone.

Quad 303 Class AB Power Amplifier

Power is provided by the Quad 303, a compact Class AB amplifier based around Quad’s symmetrical triples output-stage topology.

In standard stereo operation it delivers 50 watts per channel into 8 ohms and 70 watts per channel into 4 ohms, with up to 10 amps of output current available for improved loudspeaker control.

This gives the modern 303 considerably greater flexibility than the original design when partnered with contemporary bookshelf and floorstanding speakers.

Balanced XLR Connection

Both components include balanced XLR connectivity, allowing the 33 and 303 to be linked using a fully balanced connection.

This can help reduce susceptibility to electrical interference while also giving the system a more modern, premium connection option alongside conventional RCA.

The combination remains equally straightforward for customers who prefer traditional single-ended analogue cabling.

MM and MC Vinyl Playback

The 33 includes a dedicated MM/MC phono stage, allowing a wide range of turntables and cartridges to connect directly to the system.

MM gain is rated at 46dB, while MC gain rises to 63.5dB, giving the preamplifier the flexibility to accommodate both common moving magnet cartridges and lower-output moving coil designs.

Dedicated Headphone Amplifier

A dedicated current-feedback headphone amplifier is built into the Quad 33, supporting headphones from 20 to 600 ohms.

This means the 33 & 303 system can also serve as a high-quality personal listening setup without requiring a separate headphone amplifier.

Bridged Mono Upgrade Path

The 303 can also operate in bridged mono mode. In this configuration, a single 303 can produce up to 140 watts into 8 ohms or 170 watts into 4 ohms.

Adding a second 303 therefore creates a compact pair of monoblock power amplifiers, giving the system greater power and channel separation while retaining the same distinctive visual character.

Classic Quad Styling

Visually, the 33 and 303 are designed to belong together. The 33 uses a compact horizontal chassis with illuminated controls and a clear LCD display, while the 303 adopts the familiar upright form associated with the original model.

Finished in Classic QUAD Grey, the pairing has a distinctive retro-modern appearance that stands apart from conventional black-box hi-fi.

Compact High-End Hi-Fi

One of the strengths of the QUAD 33 & 303 combination is how much performance it delivers from a relatively small footprint. The 33 measures just 258mm wide, while the 303 is only 120mm wide, making the pair easy to accommodate in rooms where a large full-width pre/power system may be impractical.

Key Features:

• Precision motorised ALPS volume control
• 3 x RCA line inputs / Balanced XLR input
• Balanced XLR pre-output
• MM and MC phono stage
• QUAD Tilt control
• Dedicated headphone amplifier
• Remote control supplied
• Class AB power amplifier
• QUAD symmetrical triples output stage
• 2 x 50W into 8 ohms / 2 x 70W into 4 ohms
• Custom 200VA toroidal transformer

An Iconic QUAD System Reborn

The QUAD 33 & 303 combination is ideal for listeners who want a compact, distinctive analogue system with genuine hi-fi heritage.

Its MM/MC phono stage, balanced connectivity, headphone output and upgradeable power architecture make it considerably more flexible than its classic appearance might suggest, while the combination of the 33’s low-noise analogue control and the 303’s Class AB power stage delivers the musical, refined presentation long associated with QUAD.

For customers looking for something more characterful than a conventional integrated amplifier, the 33 & 303 pairing offers a compelling blend of history, usability and modern performance.