Integrated Amplifiers

PS Audio’s new Stellar Strata MK2 amplifier looks – at first glance – identical to the original Stellar Strata [HFN Mar ’21], save the ‘MK2’ lettering now added to its fascia. The slender chassis, offered in silver or black and a feature of all Stellar series hardware, is retained, as is the slim text display, right-side volume rotary and headphone output of its predecessor. So from the off, it’s clear that any changes made for this second-generation design are under the hood.

Is Editor PM simply testing me, or coaxing me? I'm not merely uninterested in streaming, Wi-Fi, et al to the point of virulent loathing, I'm actually reverting to decades-old formats for daily listening: CDs, tapes and LPs. That said, I am not unaware of DTS Play-F, having used it for many months for the wireless speakers on my kitchen counter – though with no more concern than I show a spatula or potato peeler. Yet here I am faced with Quad's update to the Vena II, its entire raison d'être being the full-on wireless experience.

So it turns out that network amplifiers built around BluOS streaming technology are like buses. No sooner had we waved goodbye to the £1299 NAD C 700 [HFN Feb '22], then up popped the Attessa Streaming Amplifier from Roksan, a little more expensive at £1495 but cut from the same just-add-speakers cloth. This joins a competitive market alongside not only NAD's device but Bluesound's £850 BluOS-based Powernode, plus other streaming integrateds including Cambridge Audio's Evo 75 and Audiolab's Omnia. Handy for Roksan, then, that it has a lot going for it.

Synchronicity is a strange thing: for whatever reason of scheduling, I found myself embarking on this review a year to the day since the passing of audio legend Ken Ishiwata. The anniversary was marked by his daughter with a YouTube video of some joyously retro Latin music performed by an all-Japanese vocal group. 'Instead of making this a very sad day,' she wrote, 'we would like to share one of his favourite songs with you. He used to play this all the time, it brings back lovely memories and a smile upon our faces'.

This amplifier is substantial, beautifully designed and finished, powerful (rated at 350W/4ohm) and hefty, at getting on for 30kg – and yet it's the base model of two integrated amplifiers recently added to Rotel's revived Michi range. Following on the heels of the EISA Award-winning P5/S5 pre/power amplifiers [HFN May '20] and the M8 monoblocks [HFN Oct '20], the X3 and bigger X5 all-in-one amplifiers are the next stage in the expansion of this lineup. The £6300 X5 claims 600W/4ohm and while the £4300 X3 model may be 'lower powered' it's still able to deliver quite a wallop when required, offering a very impressive bang for your buck.