This ultra-powerful amp lets you study voltage, bias and more stats in realtime — it's the hi-fi nerd's dream, as you'd hope for over £100k

You'll need a pretty amazing pair of speaker to justify this amp, but it's made for the truly hardcore, with equally hardcore ...

Audio inputs and outputs missing from Device Manager

If Audio inputs and outputs option is missing from Device Manager in Windows 11/10, follow these instructions i.e. reinstall ...