Pre/Power Amplifiers

Sort By: Post DateTitle Publish Date
John Bamford and Paul Miller  |  Jan 15, 2012
New to the British hi-fi scene, this exquisitely formed pre/power amp combo is highly compact thanks to the use of Class D modules and switched mode power supplies Once you’ve got the hi-fi bug it seems it’s impossible to shake it off. Certainly this is the case for John Young, who has recently launched a new electronics marque, Acoustic Imagery, based in Warminster. Acoustic Imagery’s first products are these D400M Class D monoblock power amplifiers and a partnering active preamp called, simply, the Pre Amplifier. With a sharp eye, as ever, on the latest developments on the hi-fi scene, HFN has secured the first samples for a world exclusive test.
Review: Ken Kessler, Review and Lab: Paul Miller  |  Sep 13, 2021
hfncommendedInfineon Technologies' Class D solutions have been seen before in audiophile amps, but this is the first to feature gallium nitride FETs. The 'tubes', however, are pure decoration!

Unlike its meaning as a show of arrogance, in a design context a 'conceit' is, variously, 'an ingenious or fanciful comparison or metaphor', 'an artistic effect or device', or 'a fanciful notion'. AGD's £18,000-per-pair Gran Vivace is all three. To understand the utterly bizarre use of a valve's glass envelope as a housing for a solid-state amplifier, think of a similar conceit in another field: smart watches which, instead of emulating Apple's genre-defining rectangle, look like analogue timepieces.

Review: Ken Kessler, Lab: Paul Miller  |  Jun 01, 2018
hfnvintage.pngWhile designed for the pro market, this rugged little workhorse of an amp from 1978 found its way into domestic systems of the day. How does it sound, 30 years on?

How sad. Last year was the 70th anniversary of the founding of Crown, and the event seems to have gone unmarked. The only notable occurrence was that its parent company, Harman International, was acquired by Samsung, which is a rather forlorn way for this most American of brands to celebrate seven decades.

Richard Stevenson & Paul Miller  |  Jun 06, 2009
Until the recent addition of high-end Japanese AV processors like Denon’s AVP-A1HD, the upper echelons of the multichannel pre-amplifier market have been dominated by US brands like Lexicon and Krell. Neither of which have ever really got my juices flowing if I am honest. Enter Anthem, a new contender from Canada’s Paradigm stable [see box], with the Statement processor and power amplifiers. It is easier to start with the Anthem Statement P5 and P2 power amps.
Ed Selley  |  Nov 01, 2011
A very substantial design indeed with impressive performance to match Owned by Paradigm, Canada’s largest speaker manufacturer, the Anthem electronics brand is renowned for its high value AV offerings. While its ‘bread and butter’ receivers are made in China, its premium Statement components are built entirely in-house, this massive P2 power amp sharing the same case as the company’s five-channel P5 [see HFN June ’09] that draws so much current it needs two power cords. Just as in the P5, each channel of the P2 is built as a monoblock on its own PCB with substantial heatsinks fitted with thermal sensors to monitor operating temperature. And each channel has its own toroidal transformer and regulated power supply.
Review: Andrew Everard, Lab: Paul Miller  |  Apr 01, 2018
hfncommended.pngWith an upgraded specification including an asynchronous USB input with DSD capability, ATC’s CD player/DAC/preamp aims to be a complete system front-end

Is this a new twist on the CD player? Or yet another new variation on the DAC? Well, neither actually, for as that ‘Mk2’ suffix suggests, this is a revised version of ATC’s innovative CDA CD player/DAC/preamp combination, selling for £2950 and designed as the perfect partner for the company’s £3375 P2 power amplifier [HFN Mar ’17], or its range of active speakers.

Ed Selley  |  Nov 01, 2011
A robust design that produces a sound noticeably free of adornment Famous for its uncoloured, bomb-proof monitors beloved of recording engineers the world over, ATC builds not just speaker drive units but also the amplifier power packs for its active speakers in true artisan fashion in its Gloucestershire workshops, populating circuit boards entirely by hand. Similarly, the company’s standalone pre- and power amps are individually hand crafted, only the metal casework is bought in from an external supplier. As mentioned on page 43, we reviewed the P1 and its partnering CA2 Mk2 preamp in March ’10. Since then the power amp has unfortunately crept up in price by some £250.
Richard Stevenson & Paul Miller  |  Jan 17, 2009
There is something about the Italian high-end that gets my juices flowing. It’s the style, the grace, the sheer passion that goes into the design – and the absolute certainty that there will flaws of epic, forehead slapping proportion. Exhibit A – the Audia Flight Pre remote control. Utterly gorgeous, CNC-machined from an aluminium billet and offering an innovative multifunction interface that keeps the button count to a luxurious minimum.
Review: Andrew Everard, Lab: Paul Miller  |  Jul 23, 2019
hfnoutstandingVery much hi-fi on the grand scale, this Italian-made pre/power amplifier combination is a sweet-sounding heavyweight with more than sufficient output to match its size

For a while, the amplifier combo you see here was almost literally the elephant in the editor's listening room. Delivered for review just at the end of 2018, its sheer mass – 28kg for the £12,500 Strumento No1 mk2 preamp alone, plus a further 95kg for the No4 mk2 power amp, which sells for £16,250 – defied almost all efforts to move it into PM's lab for test work before I could listen. It finally inspired our esteemed editor to relent and buy himself a trolley – and so, at last, the review literally began to roll...

Review: Adam Smith, Lab: Paul Miller  |  Apr 14, 2020
hfncommendedWhile the industrial design is familiar, the Bellini preamp and Donizetti power amp boast entirely reworked internals for this 'Anniversary' guise. And power is prodigious!

It was back in 1995 that the Italian brand, Audio Analogue, launched its first product – the Puccini amplifier. A no-nonsense stripped-down integrated, it offered little more than an input selector and a volume knob, yet its no-frills approach won many fans. Subsequently the company has built a well-deserved reputation for providing a range of fine-sounding and stylish-looking amplifiers, and has also taken to the CD player market with models such as the Maestro and Crescendo.

Ed Selley  |  Nov 20, 2011
Anniversary edition of the Reference five splits into two boxes for improved performance Released to commemorate the 40th anniversary of the company’s Reference preamp, the Anniversary Ref 5 promises to address the few solutions not available in its recently unveiled single-chassis version. This two-chassis model sees the valve power supply relegated to a box of its own and, being a true dual-mono layout, two fat umbilical cords connect it to the chassis. Under the lid can be found an all-valve, zero feedback, pure Class A circuit employing four 6H30 triodes per channel, again dual-mono, while mounted on the bottom of the main board are four massive custom Teflon coupling capacitors, weighing around a kilo apiece. Each valve is fitted with a now-familiar damping ring; the main circuitry is fitted to a large mother board; daughter boards deal with the front panel and the socketry.
Review: David Price, Lab: Paul Miller  |  Feb 18, 2021
hfnoutstandingThe REF 6 replaced Audio Research's long-serving REF 5 tube preamp back in 2015 but five years of running production updates have now culminated in this 'SE' refresh

The Audio Research Corporation is a company with provenance, a truth that's instantly apparent when first setting eyes upon its new £16,998 REF 6SE line-stage preamplifier. Indeed, its history shouts out at you, from the iconic styling with shades of its 1970s SP-series preamps, to the industrial-quality construction which underlines that it's built to last. Rather like its manufacturer, in fact.

Review: Ken Kessler, Lab: Paul Miller  |  Aug 01, 2018
hfnoutstanding.pngNot just a new model but a radical change for the venerable Reference Series, the REF160M mono power amp heralds a fresh direction in both looks and performance

A genius mix of both rebellion and restraint, Audio Research's latest chapter in the Reference saga, the REF160M monoblock power amplifier, is one of the biggest departures in the much-lauded series' evolution. Most obvious is the new look, which takes its cues from the G-Series, bringing with it a cool oversized meter, but the rest of the amplifier has been redeveloped, too, not least to incorporate features that will improve system matching, reliability, ease-of-use and initial set-up.

Review: Ken Kessler, Lab: Paul Miller  |  Apr 28, 2020
hfnoutstandingThe REF160M monoblocks were a radical change for the venerable Reference Series, and now they have been 'cut 'n pasted' into a single, spectacular stereo chassis

This should have been the simplest, swiftest review for me to undertake: I would simply drop the stereo version of the Audio Research Reference 160M [HFN Aug '18] into my system in place of the Reference 75SE. Double the number of KT150s and double the power, a price tag of two quid shy of twenty grand, fond memories of the monoblocks still tugging at me after 18 months: the Audio Research Reference 160S should have been a doddle, easy to anticipate. But it wasn't.

Review and Lab: Paul Miller  |  Jun 03, 2021
hfnoutstandingSince last year's management buyout, Audio Research has been very busy reimagining its ranges of the future – the Reference 80S (REF80S) is just the first step on the road

If life is a journey, rather than a destination, then some brands, Audio Research included, have rather more air miles under their corporate belts than others. From a boutique audiophile business to a period swept up in the fast lane of venture capital, Audio Research has now returned to its roots. It's a gloriously niche brand that understands 'what it does' and is now, once again, driven and engineered by a team that is passionate about serving the diehards of the audiophile community.

Pages

X