What Hi-Fi? Awards 2021: Rega and Cambridge Audio reinforce their supremacy in stereo amp category

Rega Aethos
(Image credit: Rega)

If you're looking for a new stereo amplifier, then boy do we have the line-up for you! We have recently announced the winners of the What Hi-Fi? Awards 2021, and it is British outfits Rega and Cambridge Audio who once again prevail in this year's stereo amplifier category. 

Rega sandwiches the category with the shoebox-shaped io (£379, $595, AU$849) at one end and the premium Aethos (£2999, $4000, AU$$5999) at the other. While there's the expected gulf in performance between the two, both amplifiers display the lively, rhythmically secure sonic character we've come to love in the company's products.

Cambridge Audio CXA81

The Cambridge Audio CXA81 wins the 'Best stereo amplifier £600-£800' (Image credit: Cambridge Audio)

Between those brilliant Rega bookends, Cambridge Audio keeps a firm grip on the middle of the market with the double whammy of its CXA61 (£749, $999, AU$1899) and step-up CXA81 (£999, $1299, AU$2495) – which hail from the CX series Cambridge launched in 2019. Both these repeat winners are supremely talented amps, delivering a combination of detail resolution, precision and punch that price rivals just can't match. Spending extra for the CXA81 gets you greater dynamic punch and sonic authority. Both integrateds are superbly made and sensibly specified, too.

Marantz PM6007

The Marantz PM6007 wins the 'Best stereo amplifier £400-£600' (Image credit: Marantz)

Our list of Award winners is completed by the excellent entry-level Marantz PM6007 (£479, $599, AU$1290) and Naim's evergreen Nait XS3 (£2199, $2999, AU$5250). The Marantz is well-equipped in the connectivity department and a brilliant sonic all-rounder that works really well across a wide range of systems. The Nait XS3, meanwhile, is an undiluted thrill machine that's a joy to listen to.

The keenest-eyed among you may notice that these top dogs were also victorious in last year's What Hi-Fi? Awards. And while we always like a shake-up in an awards category, this stronghold only goes to show how exceptional these amps truly are. Arguably all are worthy of the category's 'Product of the Year' trophy, but only one of the six will take one home from the What Hi-Fi? Awards ceremony on Wednesday 3rd November, when we will also announce a handful of special awards. Tune in that evening to find out which takes the glory.

MORE:

More Awards! See all 109 What Hi-Fi? Award winners

The best stereo amps for every budget

The What Hi-Fi? Hall of Fame: the best tech products of the 2020s

Ketan Bharadia
Technical Editor

Ketan Bharadia is the Technical Editor of What Hi-Fi? He has been reviewing hi-fi, TV and home cinema equipment for almost three decades and has covered thousands of products over that time. Ketan works across the What Hi-Fi? brand including the website and magazine. His background is based in electronic and mechanical engineering.

Read more
Integrated amplifier: Arcam A5
Best stereo amplifiers 2025: 9 class leaders chosen by our review experts
Austrian Audio Full Score One headphone amp on desk
Head-fi nuts, there’s a new class-leading analogue headphone amp in town
Rotel A8 vs Marantz PM6007
Rotel A8 vs Marantz PM6007: which budget stereo amplifier is best for you?
Rega io on wooden rack
Rega io
Pro-Ject Colourful Audio System playing
These are the 11 coolest audio treats I’ve spotted after 48 hours at the Bristol Hi-Fi Show
Integrated amplifier: Rega Elicit Mk5
Rega Elicit MK5
Latest in Stereo Amplifiers
JBL SA550 integrated amplifier
JBL SA550 Classic
Audiolab 6000A MkII amplifier in silver
Audiolab upgrades its five-star 6000A amplifier with a new DAC chip, enhanced circuitry and HDMI ARC
WiiM Vibelink Amp stereo amplifier
WiiM's Vibelink Amp stereo amplifier officially launches – with ultra-competitive pricing
Gryphon Audio Diablo 333 integrated amplifier
Gryphon Audio Diablo 333
Roksan Atessa Streaming Amplifier in black finish on wooden rack
Roksan’s stylish Attessa Streaming Amplifier is rocking a cool £300 off thanks to this juicy deal
Audio Research Reference 330M floating on a black background
Audio Research’s new flagship monoblock power amp is a serious high-end powerhouse
Latest in News
Sony WF-C710N earbuds lined up in different finishes
They’re official! Sony finally takes the wraps off its WF-C710N budget wireless earbuds
A flower on a TV screen with a gem in the middle.
TCL's new Mini LED TV range comes with huge brightness gains, reduced blooming and souped-up sound
Sony WH-1000XM4 on a table with a plant
Some of our favourite-ever five-star wireless headphones have plummeted to nearly half price – £172 off!
RCA Roku TV 24-inch (RK24HF1) small TV
My favourite kitchen TV has dropped to under £100 for Amazon Spring Deal Days
Sony XR-48A90K
Amazon has slashed the price of this five-star Sony OLED, but we have found an even better deal
Fiio FX17 in-ear headphones
Fiio's flagship in-ear headphones are packed full of drivers to put your music in pole position