Integrated Amplifiers

Despite the burgeoning popularity of the one-stop shop hi-fi component – to which one need only add speakers for a complete system covering all modern, non-physical digital media requirements – not everyone wants that degree of convergence and will happily settle for an integrated amp with on-board DAC and a decent phono stage. Canada’s Moon by Simaudio has, perhaps inevitably, just cracked that particular nut with the introduction of the Moon 240i integrated amp/DAC – essentially the company’s highly regarded Nēo Ace streaming integrated amp minus the streaming bit and a helpful £710 from the Ace’s asking price. As such, the £1,990 240i represents a new entry point for Moon’s neatly tiered integrated amp range, which peaks – via the 340i and 600i – with the 2x 175W 700i. We’re some way from that with the 240i, which quotes a more modest 50 Class A/B Watts per channel but, as ever, this is only a rough guide to speaker-driving ability and no guide at all to sound quality, an area in which Moon amps usually excel.

Remember the seventies? Early on in that decade we saw a wave of new Japanese products begin to appear in the shops and on our roads. The result was that by the end of the decade, Honda, Datsun, Sony and Panasonic were household names and everyone who bought them couldn’t praise them enough. This same thing is now happening with China. It’s a work in progress I grant you, but some companies have an excellent track record and Mei Xing is one.

Ming Da has been producing valve amplifiers for over 22 years and is gaining fans worldwide. Furthermore as with this example here, after the amp’s arrival in the UK, Malvern Audio Research upgrades key internal components, swaps in higher quality valves and adds a three year warranty. Taken altogether, this China/UK partnership feels highly compelling and without compromise. This Dynasty Duet 300 Plus is an incarnation of an existing Duet 300B triode amp design, but now employs zero feedback and claims many other audio improvements.

In the not too distant past ‘proper hi-fi’ inevitably had to equate to stacks of similar sized and similar looking separates for it to be taken seriously by audiophiles. But with improvements in more efficient amplifier technologies – such as Class D – combined with the move to higher quality streaming from portable devices, compact hi-fino longer necessarily means compromised quality, as we’ve recently seen with Quad’s Vena (HFC 390) and NAD’s D 7050 (HFC 382) both of which come from companies with long-standing reputations for producing class-leading products. Like these two brands, PS Audio’s usual stomping ground also lies inthe high-end separates arena where its DACs and digital products sit alongside a selection of audio power plants. The Sprout is a different beast, representing the culmination of two and a half year’s work by sales director Scott McGowan, son of CEO and founder Paul McGowan.

Once upon a time if you mentioned the words computer and audiophile in the same sentence you would have been chased out of town. Those days are long gone and thanks to hi-res audio downloading there’s now a turf war going on for ownership of your desktop by hi-fi manufacturers eager to cash in with products that deliver maximum sonic satisfaction for those of us who like to listen as we learn or earn. Understanding hi-res formats can be more daunting than deciphering the Da Vinci code in Nooksack, but one thing that is incontrovertible is that owning DSD files and not having an external DAC is like owning an E-type and keeping it in the garage. One such example is the AI-301DA, which boasts a Burr-Brown PCM1795 DAC and an asynchronous USB input.

Who remembers the early thirties? They contributed a lot to the world in which we live now. From Edward Elgar opening Abbey Road studios and the debut of what went on to become the Royal Ballet, to the issuing of The Highway Code and the pound coming off the Gold Standard, things would never be the same again. Meanwhile, in the United States, things were moving apace too – and in one little corner of RCA’s factory, a new and rather remarkable thermionic valve began manufacture. The 845 power triode started lifeas a radio transmitting vacuum tube; physically large and with an impressive anode dissipation of 75W, it ran 1,250V on the anode no less.