Integrated Amplifiers

A high-end, high-power, configurable tube/transistor hybrid integrated amplifier – tightly targeted but the Aesthetix Mimas could easily seduce the separates purist

Aaah, downsizing: if it keeps the high-end healthy, I'm all for it. US boutique brand Aesthetix's Mimas integrated amp joins a sector that's increasing in numbers if not dimensions, set to satisfy the modern affliction of space shortages, especially for city dwellers. Along with Wilson's TuneTot monitor [HFN Nov '18], the all-in-one SME Synergy turntable/phono stage package, TechDAS's Air Force V [HFN Jan '19], and other ultra-compact-yet-truly-high-end items, the Mimas demands little room.

In 1977, as Britain came alive to the sounds of jazz-funk and punk, a Japanese receiver arrived on UK shores promising unbeatable tech at the price. How does it sound now?

Say 'Aiwa' to most audiophiles and the chances are they'll think of cassette decks. The company was one of the first in Japan to take the format seriously and later went on to lead the field, selling machines not only under its own name but as OEM products for many other brands. So why not branch out into the rest of the audio field?

Arcam's flagship integrated amplifier combines Class G amplification with features including network streaming, AirPlay 2 and offboard Dirac Live room correction EQ

Arcam is still headquartered in Cambridge, from where it took its original name, but the audiophile marque is now part of Samsung's global consumer electronics empire, through the latter's acquisition of Harman International, which had added Arcam to its portfolio in 2016. And amid these management-level changes, Arcam's product line has also undergone a refresh. The brand has withdrawn, for the time being, from the peripherals market, jettisoning its R series of docks and DACs.

A new dawn? Audio Research's first fresh integrated amp in seven years shows a change of direction while still maintaining a grip on the brand's sonic virtues. Enter the I/50...

Few companies have been as resistant to styling changes as Audio Research. Even after a decade-plus under the ownership of fashion-conscious Italians, ARC products still suggest they belong in studios or government laboratories. Can you imagine the shock, then, when news releases arrived showing a swoopy integrated amplifier available in six colourways?

As Lexus is to Toyota, so was Aurex to general CE brand Toshiba. We reappraise the SB-A10 – compact but full-featured, was this miniature hi-fi at its very best?

In previous vintage reviews we have featured the Technics SL-10 turntable [HFN Apr '19] with its footprint the size of an LP sleeve, Sony's D-88 CD player [HFN Jul '16] that was so small the disc stuck out of its side, and Technics' SB-F1 speakers [HFN May '17], which individually could be held easily in the palm of one's hand. So how about a complete integrated amp about the same size as the concise edition of the Oxford English Dictionary? Meet the Aurex SB-A10 from 1981.

The latest all-in-one compact Class D streaming system from the German company features an enhanced network audio platform – but that's only the start of its appeal

As the model designation suggests, this isn't the first all-in-one network audio system from German high-end company AVM. Replacing its existing Inspiration CS 2.2 model, the new Inspiration CS 2.3, selling for £5250 in black or silver finishes, with a chrome 'Cellini' finish available as a somewhat glitzy extra-cost option, is based around the company's latest streaming platform.

In some ways the AX-5 represents a distillation of Ayre’s ‘purist’ philosophies, as it employs both the company’s ‘Diamond output circuit’ and the elaborately-designed volume control trickled down from its flagship KX-R Twenty preamplifier. In the fully-balanced zero loop feedback AX-5 integrated, Ayre eliminated the preamp stage altogether and simply made the gain of the power amplifier directly adjustable using VGT (Variable Gain Transimpedance). The volume knob on the right of the fascia acts as an encoder to control a pair of motor-driven Shallco silver-contact rotary switches (one for each channel, conjoined using toothed belts), each of which contains dozens of hand-selected, low-noise resistors. Volume level can be adjusted over a range of 69dB in 46 steps of 1.