Integrated Amplifiers

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Review: Tim Jarman, Lab: Paul Miller  |  Feb 07, 2020
hfnvintageCombining cool cosmetics with touch-sensitive control, this late '70s receiver was a watershed when it came to the way we interact with our kit. How does it sound today?

Released in 1977, B&O's Beomaster 2400 receiver brought touch-sensitive operation and full remote control to a world that expected nothing more from its hi-fi components than knobs and buttons. Its impact was immense, and soon the company's factory was unable to make receivers fast enough to satisfy demand. What's more, the unit's basic form and function lived on through a series of models that remained in production until 1992. And even by then, the design still looked fresh and modern.

Review: Tim Jarman, Lab: Paul Miller  |  Oct 21, 2021
hfnvintageWith its four-channel amp and on-board SQ decoder, this '70s receiver was the lynchpin in what was arguably the most leading-edge quadraphonic system of its time...

The era of quadraphonic sound was not the hi-fi industry's finest. Appearing around 1973 but moribund by 1978, quadraphonic was the first big marketing failure by a sector that had so far enjoyed unalloyed success in convincing the public to buy into its latest developments. Confusing advertising, a damaging format war and a lack of consumer demand all played their part in the downfall of a concept which, at its peak, had been hailed as the future.

Review: Mark Craven, Lab: Paul Miller  |  Oct 14, 2021
hfnoutstandingPromising 'extraordinary power with exquisite tube finesse' BAT's new VK-3500 integrated marries the brand's REX 3 triode preamp with a robust solid-state output

Please indulge me while I discuss the design of BAT's (Balanced Audio Technology) VK-3500 amplifier. Beauty is in the eye of the beholder, and all that, but I'd be surprised to find anyone who didn't admire the styling of this hybrid integrated. Even without the 'BAT' logo conjuring images of Gotham City's caped crusader, it has a purposeful, high-quality look and feel. There's an argument that the appearance of a hi-fi product is unimportant, but at this price you expect some attention to detail and craftsmanship – and that's what you get. Of the silver and black finish options, the latter is the obvious choice if you really want to emphasise the Dark Knight vibe…

Review: Mark Craven, Lab: Paul Miller  |  Jan 13, 2022
hfnoutstandingGuided by theory and practice from the costly REX-series, traditional output pentodes are usurped by a pair of power triodes in BAT's fully-balanced tube integrated amplifier

There's a certain amount of extra-curricular activity that can come with using a valve amp. As with their fellow stalwarts of hi-fi – turntables – valve amps present opportunities for setup, tweaking, and maintenance, and for some that's part of the appeal. Balanced Audio Technology's new £9995 VK-80i integrated, however, is intended to be 'plug-and-play', and provide a user experience more in line with its own solid-state models than some hot bottle contemporaries. All the thrills of the tube sound without the fuss? Where do I sign?

Review: Mark Craven, Lab: Paul Miller  |  Apr 18, 2023
hfnoutstandingBoulder by name and industrial design, the 866 integrated is no mere rolling stone. With optional streaming and huge power under the bonnet, it's an unstoppable force

The Boulder story begins in 1984, with the release of the 500 Power Amplifier. A professional audio company back then, Boulder's stereo model was destined for music studios and broadcast suites, but founder Jeff Nelson soon realised the hardware had domestic potential too, resulting in the 500AE 'audiophile edition'. Today, nearly 40 years and an expanded product portfolio later, the Colorado-based manufacturer remains a darling of the high-end hi-fi scene, albeit one whose designs still have a 'pro audio' air about them.

Hi-Fi News Staff  |  Nov 11, 2014
If proof were needed of Bryston’s mettle for embracing the modern world beyond purist two-channel analogue pursuits, it’s the B135 SST2 C-Series Integrated Amplifier. While the unit reviewed here is two-channel, purist and analogue, it can be fitted with a DAC module for £1575 that adds two coaxial and two Toslink inputs. Other options include a £500 universal remote and an MM-only phono stage for £650. Bryston offers neither MC nor USB.
Review: Adam Smith, Lab: Paul Miller  |  Dec 02, 2019
hfncommendedIs the no-frills CD player/amplifier combo making a comeback? Cambridge Audio is not alone in thinking so, but its latest AX series also looks to offer uncommonly good value

Whether a car, hi-fi component or a general electronic gadget, the promise of 'trickle-down' technology from a flagship model is always an alluring prospect. Cambridge Audio is the latest to claim such an advantage, with the assertion that its new AX models 'take design and innovation cues from the CX and Edge [HFN Nov '18] hi-fi ranges'.

Review: Andrew Everard, Lab: Paul Miller  |  Nov 01, 2018
hfnoutstanding.pngNamed after Cambridge Audio’s founding father, this new integrated amplifier includes a DSD-compatible DAC and Bluetooth aptX HD. But does it really have an Edge...?

There’s one very noticeable thing about the new Edge range from Cambridge Audio – well, apart from the fact that these hefty new high-end components are quite a long way from the company’s usual entry/midrange territory, that is. Look at any of the new products and you’ll notice the branding – it simply says ‘Cambridge’, as if to set this range apart, and fit in with the minimalist-but-purposeful vibe of the whole lineup.

Review: James Parker, Lab: Paul Miller  |  Dec 16, 2021
hfnoutstandingThis London-based company may be a relative latecomer to the all-in-one streaming system market, but its debut models have style a-plenty – and performance to match

Given Cambridge Audio's track record in digital audio, it is perhaps a little surprising it's taken the company so long to enter the network systems arena. It was an early developer of add-on DACs in 1994 [see HFN Jun '21] and has been making streaming components for a good while, even going to the lengths of developing its own network audio hardware. The Cambridge catalogue currently caters for 'computer audio' enthusiasts with the entry-level £169 DacMagic 100 right up to the £4499 Edge NQ network preamp.

Hi-Fi News Staff  |  Dec 22, 2014
Longstanding Slovakian tube specialist Canor is based in Prešov, in a purpose-built factory where it builds everything in-house and has developed a proprietary valve-testing and burn-in methodology. Valves that don’t measure up, we’re told, are returned to their makers for use in guitar amps and the like. The company traded for many years as Edgar until changing its brand name to Canor at the end of 2007. Its inaugural integrated tube amp, the TP101 was first shown in 1995 at an exhibition in Brno.
Review: Andrew Everard, Lab: Paul Miller  |  Mar 23, 2022
hfnedchoiceJust 16cm wide, the latest integrated amplifier from Chord Electronics is truly tiny, but the levels of performance it offers elevate it way beyond its apparent novelty status

The Chord Electronics Anni, selling for £1195, isn't the company's first compact amplifier – that honour goes to the £2900 TToby [HFN Feb '17], designed as a partner for the Hugo TT 2 DAC/pre/headphone amp [HFN Dec '15]. But the Anni is smaller, at just 16cm wide and 4.25cm tall, much lighter at 625g, and conceptually different from the TToby.

Ken Kessler  |  Sep 18, 2020  |  First Published: May 01, 1985
hfnvintageKen Kessler goes Class A in a small way with the Marantz PM-4

Phone calls from company spokespersons such as Marantz's Steve Harris, are generally one of two types. Either 'Would you like to review our new Model XYZ whatever?' or 'Where the hell is our Model XYZ whatever, which you've had for nine months?' Such phone calls are never about reviewing components that are out of production.

Review: Ken Kessler, Lab: Paul Miller  |  Sep 10, 2020
hfnoutstandingIn what is looking like it might be a trend – tube hybrid integrated amplifiers – Copland joins in with a Danish beauty at a sensible price, the all-singing, all-dancing CSA100

Three thoughts hit me as soon as I switched on the Copland CSA100 integrated amplifier. The first was that it was an all-embracing, do-everything tube/transistor hybrid like the Vinnie Rossi L2i-SE [HFN Jul '20], rated at a similar 100W/8ohm if at a fraction of the price, at £3498. The second was that I want it to kick off a fashion for cool, fully-loaded integrated hybrids because they are the smartest option for offering the best of the tube/solid-state worlds. The third is the realisation that I need to look deeper into hi-fi system building.

Review: Mark Craven, Lab: Paul Miller  |  Jul 22, 2021
hfnoutstandingDanish brand Copland beefs-up the power supply to its all-singing, all-dancing CSA100, crowning its range of tube hybrid integrated amplifiers with this heavyweight model

Not long into my audition of Copland's CSA150, I began to feel a little annoyed that, at some point, I'd have to unplug it and send it back. Reviewer remorse isn't quite as galling as buyer remorse, but it is still 'a thing', and this £4988 hybrid tube integrated had given me a bad case of it. Hybrid? Yes, for the CSA150 looks to be an upscaled CSA100 [HFN Aug '20] combining a 6922 double-triode and solid-state FETs in its preamp stage, driving a bipolar transistor amplifier output. Perhaps keen to avoid overselling the benefits of this architecture, Copland warns buyers not to expect 'the warm and nice, coloured charm of some older tube designs'.

Review: Ken Kessler, Lab: Paul Miller  |  Mar 18, 2022
hfnoutstandingHot on the heels of its tube hybrid integrateds comes this altogether cooler solid-state amplifier from Danish brand Copland. It packs on the style while also packing a punch

Nothing causes more consternation than a product seemingly 180 degrees at odds with a company's core philosophy, whether hi-fi, cars, watches, what-have-you. Audio Research dealt with the repercussions of its first solid-state amp… but an all-transistor amp from the equally tube-centric Copland? Not its first – these were the mid-'90s CSA8/CSA18 – so the CSA70 probably won't cause too much of a ruckus despite the absence of bottles.

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