Design engineers can evaluate operating efficiencies of audio amplifiers while using standard benchtop measurement systems.

The folks at [ElectroSmash] recently released 1Wamp – a one watt, open hardware, Guitar amplifier ... detailed circuit analysis of every part of the design, starting from the power supply ...

Assuming that Rega is able to keep the Brio MK7 under $1,000 (or damn near close to it), the British amplifier is going to be ...