Integrated Amplifiers

An innovative amplifier featuring sophisticated adjustable impedance matching. From the outside at least, what we have here is an integrated amp seemingly conventional in most respects, though its dimensions are just 440x80x410mm (whd) meaning it takes up no more shelf space than would a small turntable.

Revisiting the first British solid state amplifier Goodmans was one of the most prolific loudspeaker makers of the 1960s, also supplying the radio and television trade. The company ran from 1932, ending when the TGI group was broken up in 2004. But the brand name as such survives marketing a range of DVB set-top boxes and LCD TV sets. Introduced in 1966 with a price tag of £49 10s, this compact little amplifier, the Maxamp 30, measured just 10in tall, 5in wide and 7in deep.

Emblematic of the evolution of the Chinese-made valve amp is PrimaLuna's ProLogue Premium - in case you hanker after a value-for-money integrated with no rough edges This year, my son turned 21 and graduated from university. That was enough of a reminder of time’s passage to depress me. Far less cataclysmic an indicator was another shock to the system (metaphorical, I stress) in the form of the PrimaLuna Prologue Premium Integrated Amplifier. It’s not that the original, which ‘legitimised’ Chinese-made valve amps for Western consumers, was shabby by any means.

Sleek design, comprehensive functionality and even a built-in wireless DAC make the AS-400 a thoroughly modern integrated amp – for today’s iTunes generation Not long after the introduction of Micromega’s £2800 integrated amplifier, the IA-400, and its £1100 WM-10 wireless-equipped DAC comes a component that effectively combines the two: a new version of its integrated amplifier (with ‘AS’ instead of ‘IA’ nomenclature) featuring a built-in 802. 11n Wi-Fi receiver/DAC, working to Apple’s latest AirStream protocols. As with any wireless connectivity – Bluetooth or Wi-Fi – there is something quite spooky about the ability for music stored on computer, mobile ’phone or PDA to be played through one’s hi-fi system as if by magic. Unlike open source DLNA/UPnP systems, however, AirStream (formerly called Airplay) is proprietary to Apple and works only with its iTunes media player, iPhones, iPads and the web-enabled iPod Touch.

I find it very odd that the M2 is the most technically advanced and subjectively successful digital amplifier yet to grace my listening room. Until recently, right now in fact, NAD was not a company likely to spring to mind for its cutting edge technical innovation. The brand saw me through my penniless student days with a host of hi-fi products that majored on simplicity, great value and a remarkable immunity to spilt beer. But the M2 is very different.

As far as expressions go, a novelist would describe it as ‘eyes agog’: that’s the look that crossed my face in January 2009, at the Consumer Electronics Show in Las Vegas. It wasn’t even an actual piece of hardware that grabbed me. It was a preliminary product sheet, a flyer for the forthcoming Quad II Classic Integrated. Talk about a well-kept secret: even the normally voluble Tim de Paravicini, who designed it, let out nary a peep [see p110].

Surfing the wave of new and innovative Far Eastern valve products, Emillé looks set to ride a tube of its own with the visually stunning KI-40L. The Far East has been producing quality components for many years (see boxout for company history). However in recent years, as the world has shrunk thanks to the internet, an opportunity has opened up for us to try exotic fare on offer from the likes of Shanling and now Korean company Emillé. Part amplifier, part sculpture this physically imposing component is rated at just 40W/ch and forms part of a five-strong range.