[Simon] wrote in to tell us about a headphone tube amp that he just built ... an on board regulated power supply and a volume control for the input. Effort was made to keep the PCB single sided ...

Rotel The Rotel DX-5 is a stereo integrated amplifier with a full-color graphic display, large volume knob and a compact form factor ... Notably, the Rotel DX-5 features an HDMI ARC input and a ...

Alfatron Electronics recently unveiled its MA15075D Compact Digital Mixing Amplifier. Ideal for a wide range of commercial ...

Alternatively, there may also be a "pad" button for signals the input amplifier cannot handle (most pads are in the area of -20 dBs).