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.
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
What Hi-Fi? Verdict
This classic power amp design is a class performer that’ll work superbly in a wide range of systems
Pros
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Even-handed sonic delivery with strong dynamics and fine resolution
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good build
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compact
Cons
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Nothing of any significance
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