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Quad
Quad 303

Quad 303

Best price now

$1,695.00at House Of StereoObserved Nov 1, 2026, 2:48 PM

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Quick answers

Where is the Quad 303 cheapest?
At House Of Stereo, for $1,695.00, as of our latest check.
What do buyers say about the Quad 303?
Buyers like: Transparent, 'you are there' sound; Warm, rich, musical sound with clear mids and controlled bass; Clean, precise reproduction at both low and high volumes.

Quad 303 prices at every store

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  • House Of StereoNew

    Availability unknown

    $1,695.00Observed Nov 1, 2026, 2:48 PM
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Quad 303 price history

Lowest price we've seen: $1,695.00 on Nov 1 at House Of Stereo. Tracked across 1 store since Nov 1.

From House Of Stereo

  • Class AB power amplifier with QUAD's famous symmetrical triples output stage
  • Custom 200VA toroidal transformer
  • Stereo or bridged mono mode selection
  • Stereo: 2 x 50W into 8 ohms, 2 x 70W into 4 ohms
  • Bridged mono: 140W into 8 ohms, 170W into 4 ohms
  • Single-ended RCA and balanced XLR inputs, 12V trigger, high-quality speaker binding posts
Shipping
Shipping calculated at checkout.
In the box
Power Cord, Remote Control, User Manual

About the Quad 303

QUAD 303

The 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.

AREA DVD

"With the new edition of the legendary Quad components, consisting of the 33 stereo preamplifier and the 303 power amplifier, the British company has achieved a great success...

Acoustically, the Quad 33 and Quad 303 shine with an enormous degree of sonic culture and acoustic harmony. Shrill, harsh sounds are foreign to t..."

QUAD 303

Oct. 2024

By revisiting the QUAD 33 and 303 components, QUAD demonstrates its authenticity, pedigree and excellence as a juggernaut of the British hi-fi world - past and present.

In listing the names involved in the development of this stunning iteration of an icon, you’ll find a calculation of close to 200 years of engineering experience and 100+ years of QUAD-exclusive design and service.

A dream team of Rob Flain & Paul McConville (the world’s most experienced QUAD service engineers), Jan Ertner (30 years of experience in QUAD design), Peter Comeau (the acoustic director behind some of QUAD’s most successful loudspeakers) and David McNeill (the industrial designer responsible for two decades of QUAD innovations) were all a part of this labour of love, making no compromise in the demand for a product that could bear the name of 33 and 303.

The QUAD 303 power amplifier was intended for normal domestic use with loudspeakers of moderate efficiency, but was also used by broadcasting and recording studios, worldwide, who appreciate its excellent performance and dependability. The ethos hasn’t deviated.

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Function

The outstanding performance of the QUAD 303 is still celebrated to this day, and is largely due to the unique output circuit developed by QUAD.

In reissuing the QUAD 303 power amplifier concept, exactly like the matching 33 preamplifer, QUAD’s incomparably experienced service team was matched with the equally adept engineering team to reinvoke the design, romance and performance in a thoroughly modern iteration of a hi-fi legend.

As with the new QUAD 33, every aspect of design and performance has been analysed and re-engineered way beyond simply modernising components and refreshing of specifications.

The QUAD 303 power amplifier was intended for normal domestic use with moderately efficient loudspeakers, but it was also used by broadcasting and recording studios worldwide, who appreciated its excellent performance and dependability.

The ethos hasn’t deviated. The original 33 and its partnering 303 were awarded with a ‘Council ofIndustrial Design Award in 1969’. Even today, the original design is celebrated and confirmed by its presence at the Museum of Modern Art in New York. The new 33 and 303 have been industrially engineered to surpass those original standards, with a truly modern appearance and functionality.

Circuitry

However, much like the original, the new QUAD 303 maintains its faithfulness to the original by employing the famous QUAD ‘symmetrical triples’. Employed to provide a completely symmetrical output stage, greatly reducing distortion and rendering the resting current independent of output transistor temperature.

This development enables the designers to reduce distortion to emphatically low levels without sacrificing stability and to maintain this excellence under all dynamic conditions.

To put this in perspective, the lowest theoretical distortion present on the very source material will still be some hundred times greater than that the QUAD 303!

Such a level is, of course, completely inaudible no matter how refined the test.

The use of ‘triples’ permits simple and effective control of the output current and since the voltage is also controlled, the output transistors are completely protected and must always operate within their ratings with the obvious advantages of greatly improved reliability under all conditions, without the use of elaborate and expensive circuitry.

What buyers say

Buyers like
  • Transparent, 'you are there' sound
  • Warm, rich, musical sound with clear mids and controlled bass
  • Clean, precise reproduction at both low and high volumes
  • Easy to live with; compact, cool-running design
  • Retro looks with modern build quality and finish
  • Well deserved standout hi-fi product award for 2024

Specifications

Number Of Channels
2 channel
Wattage
50 W wattage
Power output stereo
50 Watts StereoSource
Power output bridged
140 Watts Mono into 8 OhmsSource
Amplifier class
Class ABSource
Transformer
custom 200VA Toroidal TransformerSource
Current output
10 AmperesSource
Inputs
XLR & RCA InputsSource
Power at 8 ohms
50W @ 8 ohmsSource
Power at 4 ohms
70W @ 4 ohmsSource
Bridged power 8 ohms
140W @ 8 ohmsSource
Bridged power 4 ohms
170W @ 4 ohmsSource
Weight
8.4kgSource
Dimensions
325mm X 176mm X 120mmSource
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