Outboard DACs

In common with a lot of HFN readers, I have a bit of a 'thing' about overly complex digital devices. I'm not referring to input flexibility – many of us will have systems in which different flavours of digital connection are accommodated, from USB links from a computer to good old S/PDIF from a CD player or the like. No, what I really find obstructive is devices bristling with digital-domain options, from filters to dither to PLL bandwidth and the like, all of which often look like an exercise in 'because we can' – a facilities arms-race – rather than being of any real-world assistance to the user.

Seemingly there's no stopping Southport-based iFi Audio: it just keeps on trotting out new digital products, all aiming to fill a gap in the market – or create a new gap to fill. Indeed, while writing this review I was unsurprised to see another new launch pop up, in the form of the bright red iDSD Diablo.

Italian manufacturer Audio Analogue's 'PureAA' line was spun out of the 20th anniversary models the company launched back in 2016. The range now runs to three models, of which the AAdac is the latest arrival, bringing digital capability to a range that was otherwise purely 'analogue'. Like the other PureAA models and Anniversary amplifiers, the AAdac is a co-operation between Audio Analogue and stablemate AirTech, and is very much Realizzato è Costruito in Italia. There's certainly none of that offshoring the entry-level line here.

When is a DAC not a DAC? When it turns into a multifunctional network-connected music player, that's when! Increasingly, the lines between products that exist to convert digital inputs into analogue audio and full-blown network players are becoming blurred. So, just as there are players provided only with digital outputs – network transports or bridges to be paired with an outboard DAC – so we now have DACs with network capability built-in. Add an app running suitable UPnP control software, and you have a complete streaming solution.

We've come a long way since iFi Audio was started as an offshoot of high-end brand Abbingdon Music Research, building its initial reputation with its 'Purifier' products, designed to clean up digital signals. And if anyone was labouring under the delusion that these were devices designed to tackle non-existent problems – you know, the old 'digits is digits' thing – the company has since expanded into making everything from complete systems to some of the most cost-effective DACs and headphone amps around. After all, its excellent xDSD [HFN Jul '18], was a 2018-19 EISA Award-winner, following on from the 2014-15 winning footsteps of the nano iDSD [HFN Dec '14].

With its upgraded M1 Dual Mono DAC now in 'Classic' form and selling in the UK at £9499, Bricasti has also announced a more affordable alternative, but still offering 'an incredible array of performance'. The basic M3 USB DAC is offered at £5399, but this increases to £6999 when fitted with its DNLA/UPnP-compatible network streaming card and new headphone amplifier option. The latter includes both 4-pin balanced XLR and 6.35mm single-ended jack outputs, and is available as a return-to-factory retro-fit option as the front fascia requires some reworking.

Colorado-based PS Audio is known for a number of things: its products are handmade in its own US facilities and, as of last year, it only sells direct to its US customers. Here in the UK, PS Audio's equipment is sold more conventionally, through distributor Signature Audio Systems, which premiered the company's Stellar Phono Amplifier at the Hi-Fi Show Live at Ascot in October last year. That product, along with the Power Plant 3 AC regenerator [HFN Jan '20], is part of the new entry-level range from the company.