DAB, DAB+ and FM radio reception, aptX Bluetooth streaming capability and auxiliary inputs (stereo RCA and 3.5mm) constitute the sources, 10W of Class-D amplification provides the oomph and a 3.5in flat diaphragm driver (reinforced by a downward-firing reflex port in the bottom of the cabinet) delivers the sound.

There’s a bright, crisp OLED display to keep you informed, a very acceptable remote control if the responsive little joystick control on the fascia is too much of a faff, and alarm functions in case you want to position the SuperSignal next to your bed.

Specification is absolutely on the money for a product of this type.
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https://www.whathifi.com/revo/supersignal/review