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Quad 909 review

Size is not everything here, as the 909 delivers a dynamic punch of sound to your ears with great clarity and quality Tested at £900

5 Star Rating

Our Verdict

This classic power amp design is a class performer that’ll work superbly in a wide range of systems


  • Even-handed sonic delivery with strong dynamics and fine resolution
  • good build
  • compact


  • Nothing of any significance

Small amp = small sound? Don't you believe it. The Quad 909 may be relatively small, especially by the standard's of some of its rivals, but play anything large-scale – say, Stravinsky's Rite of Spring – and this dynamic amplifier will take a firm grip of the partnering speakers and produce a sound with impressive authority.

Much of this is down to a rich and weighty bass performance that goes very deep without losing control: even fast-moving rock and rap basslines thunder along and give a firm foundation to a clear and full-bodied midrange.

Outright clarity is good, and there's a strong sense that the amplifier isn't messing around too much with the signal. An even tonal -balance and surefooted sense of -timing complete a strong sonic cocktail.

A compact power amp
In common with other 99 Series products, the 909 power amp is built inside a one-piece cast casing, and feels hefty and solid. Within, you get the company's acclaimed ‘current-dumping' design, which actually uses two amplifiers: a very high quality low-power amp provides the signal, and keeps what's going out as close as possible to what's coming in from the preamp, while a high-power section provides the grip to keep the speakers under control.

The result is a relatively compact power amp able to deliver 140W into 8 ohms and 250w into a 4ohm load, and still one of the very best power amps at this price. Listen to it before you buy anything else.


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General Information

Manufacturer Website Address
Brand NameQuad
Product Series99
Product TypeAmplifier
ManufacturerInternational Audio Group Ltd
Product LinePerformance
Manufacturer Part Number909
Product NameQuad 909
Product Model909

Technical Information

Minimum Frequency Response13 Hz
Impedance8 Ohm
Maximum Frequency Response40 kHz
Total Harmonic Distortion THD0%


RMS Output Power140 W
Audio Channels2

Physical Characteristics

Width321 mm
Depth240 mm
Height140 mm
Dimensions140 mm (H): 321 mm (W): 240 mm (D)


Limited Warranty1 Year