Strathclyde firm Revo has used technology from Cambridge-based HiWave in its K2 digital radio with an iPhone dock.
HiWave, once known as NXT, is providing the BMR (balanced mode radiator) loud speakers plus its Audium high-efficiency audio amplifier chip.
The switching amplifier uses an undisclosed low-bit-rate encoding scheme which relies on the bursty nature of audio to cut power consumption. Distortion has been claimed to be 1%.
Normally made from aluminium-clad glass-fibre filled ABS, the photo of the tall thin (330x106x106mm) radio shows a transparent version.
Many versions of iPad, iPhone and iPod can be docked, and there is Wi-Fi and Ethernet for on-line music as well as FM reception alongside DAB.
Wi-Fi also allows the K2 to act as a wireless speaker for a desktop.
Other audio sources can be plugged into a 3.5mm jack.
K2 will be sold for around £300.