Pre/Power Amplifiers

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Review: Andrew Everard, Lab: Paul Miller  |  Oct 05, 2023
hfnoutstandingCelebrating a legacy that stretches back 50 years, the Norwegian brand stamps its authority with the heavyweight AW 800 M flagship amplifier – a solid cube of power!

There's a classical simplicity about this flagship pre/power amplifier combination from Electrocompaniet. The style – realised here with clear-on-black acrylic fascias with gold detailing – harks back to its first amp, 'The 2 Channel Audio Amplifier' [HFN Dec '11], based on Dr Matti Otala's tackling of 'Transient Intermodulation (TIM)' distortion, shortly after it began operations in 1973.

Review: Mark Craven, Lab: Paul Miller  |  Sep 27, 2024
hfnoutstandingPowerful, but trading subtlety and musical sensitivity over brute force, Ed Meitner’s flagship MTRS stereo power amplifier finds its perfect partner in the all-analogue PRE

The promotional literature for EMM Labs’ MTRS stereo power amplifier is so sure of its designer’s cachet within the audiophile community that it simply refers to him as Ed. For those not in the know, Ed is Ed Meitner, founder of Canada’s EMM Labs, and – back in the day – the engineer tasked by Sony and Philips to help with the development of SACD. The company that bears his initials operates in the high-end (there’s a more ‘accessible’ Meitner Audio brand) and maintains a boutique separates catalogue.

Review: Mark Craven, Lab: Paul Miller  |  Oct 05, 2020
hfncommendedWith remarkable power on tap, and very little lost to heat, Emotiva's XPA HC-1 monoblock promises exceptional performance-per-pound. Is it the bargain it seems?

American brand Emotiva's mission statement puts affordability front and centre. Claiming that 'the price of sonic nirvana' had begun to slip out of the reach of many audio fans, it launched in the early 2000s with the goal of dragging it back, using founder Dan Kaufman's previous experience as an OEM supplier as its foundation. This XPA HC-1 monoblock amp is a perfect example of the Emotiva ethos, promising serious power without the serious price. Just £799, in fact.

Review: Nick Tate, Lab: Paul Miller  |  Oct 01, 2018
hfnoutstanding.pngWith a claimed 550W on tap, this US-made pre/power amplifier combo offers serious quantities of sound per pound. How does this muscle amp-on-a-budget perform?

It’s often said that less can actually be more. For example, many high-end hi-fi products are devoid of fripperies because the lion’s share of the build budget is spent on the bits you can’t see, such as high quality components. This in turn gives better sound per pound, or so the theory goes. Yet other designs come festooned with features and often lack ability in the sonic stakes.

Review: Andrew Everard, Lab: Paul Miller  |  Oct 03, 2022
hfnoutstandingEngström's pursuit of the 'pure Scandinavian Sound' reaches its peak in the ARNE amplifier – a triode tube amplifier that takes aim at solid-state competition

This isn't our first encounter with the valve amplification from Swedish company Engström, the ERIC Encore power amps [HFN Oct '21] lighting our blue touch paper of interest. The ARNE integrated amplifier, its 'entry-level' offering, is quite possibly an amp best suited to what comedy writer Danny Robins made famous as 'The Cold Swedish Winter', it also doubling as potent heat source. The curvaceous glass cover protecting the pairs of power triodes gets very warm indeed, so this amp needs plenty of 'fresh air'.

Review: Andrew Everard, Review and Lab: Paul Miller  |  Nov 01, 2021
hfnoutstandingWith radical styling, serious room-heating ability and possibly the highest price per Watt ever seen in these pages, these Swedish power amps are the result of a family obsession

To misquote Sly & The Family Stone just a little, Swedish hi-fi company Engström – it only makes tube amplifiers – is a family affair. Founded by engineer Lars Engström and his industrial designer nephew Timo as recently as 2008, the company is based in Lund, just northeast of Malmö, and has its R&D HQ some 600km away in Nacka, south of Uppsala on the Baltic Sea coast. The division of labour in the company sees Lars Engström as chief engineer, having given up work in fields as diverse as navigation, microcomputing and railway signalling systems in 2001 to concentrate on amplifier development, while his nephew is responsible for the look of the products, and the company operations.

Review: Jamie Biesemans, Lab: Paul Miller  |  Jun 06, 2025  |  First Published: May 01, 2025
hfnoutstandingWith its macho industrial design, large touchscreen interface, fibre network connection and cutting-edge digital technology, Eversolo’s flagship streamer/preamp raises the bar

Eversolo’s DMP-A8 was an indication of the Chinese brand’s ambition to progress beyond affordable but very capable DACs and streamers into ‘real’ hi-fi territory. The DMP-A10, which ratchets up both features and finish, is the next step. It’s also Eversolo’s first full-sized component, alongside a new AMP-F10 power amplifier that’s clearly been designed to be a perfect visual match.

Review: Jamie Biesemans, Lab: Paul Miller  |  Jul 20, 2024
hfnoutstandingIf ever the phrase ‘all-singing, all-dancing...’ could be applied to an audio streamer then Eversolo’s flagship model is the promise given form. The DMP-A8 should take a bow...

Search online and you’ll discover a groundswell of cheap DACs and streamers playing to every (hardware) whim, making it easy to overlook Eversolo’s efforts. But the company, which is the dedicated audio department of Shenzhen-based Zidoo, known for its EISA Award-winning Neo S media player, follows a different, more quality-focused strategy, as the affordable Z8 DAC and DMP-A6 have so far proved.

Review: Mark Craven, Lab: Paul Miller  |  Aug 01, 2023
hfnoutstandingLong-awaited, while the monoblock version of Exposure's 3510 amplifier series looks just like its Stereo and Integrated models, in practice it is a new and highly refined amp

When Exposure launched its 3510 series in 2021, as a replacement for the venerable 3010 range, attention was first given, perhaps unsurprisingly, to the integrated amplifier [HFN Nov '21]. One year later it was joined by a stereo power amp and partnering preamp [HFN Nov '22], and a year after that we witness the arrival of the 3510 Mono, tested here. Such an approach is not unusual for a boutique brand – a fair description of the Sussex-based company – but it's perhaps also indicative of the hidden differences between Exposure's amplifier designs.

Review: Mark Craven, Lab: Paul Miller  |  Dec 12, 2022
hfnoutstandingReplacing the outgoing 3010 series with trickledown experience from the costlier 5010 range, Exposure's 3510 stable just got busier with the launch of a new pre/power

Who remembers the Stella Artois ad that proclaimed its lager was 'reassuringly expensive'? A slightly odd slogan, if you ask me, but it came to mind when setting up Exposure's 3510 pre/power pairing, only substituting the word 'expensive' for 'simple'. Here are two hi-fi products where simplicity has been elevated almost to an art form, reflected in the casework, choice of connections and user experience. And at £1590 a piece, these recently launched models aren't outrageously expensive.

Review: Andrew Everard, Lab: Paul Miller  |  Nov 01, 2018
hfnoutstanding.pngSharing the same chassis design as its 3010 series, but boasting double the clout, Exposure’s latest pre/power also offers modular MM/MC phono and DAC options

Available with silver (‘titanium’) or black front panels, both with black main casework, Exposure’s 5010 models replace the rather more overtly styled – and huge – MCX series, with their large outrigger feet, as the company’s flagship models. They sit atop a range running from the entry-level 1010 series through the 2010S2s and 3010S2s [HFN Dec ’14], with the half-width XM lineup as an alternative [HFN Apr ’18]. This top-end range is kept much simpler than its junior counterparts, for where those lineups extend to disc players and integrated amps, here we have just two models: the £2000 5010 preamp, and the £4550-per-pair 5010 mono power amps.

Review: Jamie Biesemans, Lab: Paul Miller  |  Sep 14, 2023
hfnoutstandingThis Polish tech brand has already made waves with its OOR headphone amp and DAC-equipped ERCO. Now comes its most sophisticated digital offering yet – the Wandla

Does the world really need another DAC? Considering the ample offerings from traditional and emerging Asian hi-fi brands, you might be tempted to say, 'not really'. However, Poland's Ferrum Audio combines experience with a flair for innovation – its parent company HEM has been an OEM contractor for other manufacturers, possibly inciting its engineers to go one better for their own brand.

Review: Andrew Everard, Lab: Paul Miller  |  Jun 23, 2022
hfnoutstandingThis Polish hotshot brand broke onto the audiophile scene with its programmable DC PSU, followed by the OOR headphone amp. Now, with DAC onboard, comes the ERCO

The name of this new product from Polish company HEM, selling under its Ferrum brand, is spelt ERCO, but pronounced 'ertso'. Apparently it's Esperanto for 'ore', and so follows on from the mineral-based brand-identity – Ferrum, OOR – you get the idea. What's also not immediately apparent, given that all the Ferrum products basically look the same, is that the £2395 ERCO is perhaps the most comprehensively equipped model the company has made to date.

Review: Ken Kessler, Lab: Paul Miller  |  Jan 31, 2025  |  First Published: Feb 01, 2025
hfncommendedBargains are something we like, so an all-valve pre/power combination for under £7000 is worthy of all our attention – say ‘hello’ to Fezz Audio’s Sagita Prestige and Titania

Baffled by its name, I assumed Polish manufacturer ‘Fezz’ took it from its distinctive toroidal transformer covers, which reflect the shape of the famous Moroccan hat if not the city itself. Here was a valve amplifier with the full complement of toroidal transformers – not all that common with tubes – but there’s even more novelty to the Sagita Prestige preamplifier (£3499) and Titania power amplifier (£3495). Eastern European price advantages are just the start.

Andy Whittle and Paul Miller  |  Jan 06, 2009
Flying mole – now there’s an interesting name that would appear to fly against the face of convention. In this case, it’s the convention of Class A/B transistor amps and thermionic devices that glow in the dark. I am not even certain that they have moles in Japan. I’ve been to Tokyo a number of times and haven’t seen moles on the menu, so can only assume that they do not.

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