“Primare’s industrial design speaks volumes in this stylish, slimline amplifier. Despite being just three-quarters the size of conventional separates, it punches way above its weight in sound and features. Alongside conventional analogue inputs, there’s a hi-res PCM/DSD DAC plus Prisma connectivity and control technology that includes Bluetooth, AirPlay, Spotify Connect and Chromecast (with Roon) functionality. It sounds surprisingly good for its size – super-smooth and creamy with detail aplenty and satisfying stage depth. The proven Class D power amplifier is meaty enough to drive most loudspeakers, while the fascia’s crisp OLED display keeps track of source and volume settings. Factor in the svelte alloy casework and the I15 Prisma makes great sense for those seeking something out of the ordinary”.