The NotePad 250 (£1495) and NotePad Air (£995) are 125W and 95W amplifiers respectively (measured into 8 Ohms), each designed to be driven by any Apple iOS device using AirPlay.
They will also stream up to 24-bit/192kHz high-definition tracks using UPnP (universal plug and play).
Chapter is also be showing its NotePower 400 and 600 mono analogue Class-D amplifiers.
Other (non-AirPlay) products in the Chapter range include the Precis 250 integrated amp (2 x 225W), Sonnet-S CD player, Preface S preamp and Couplet 250S power amp (2 x 225W).
You can check out the complete Chapter Electronics line-up in the display just outside the Bristol Suite here at the show.