This Design Idea is a reprint of an earlier one that contained errors in graphics (Reference 1). Even though 6L6 beam-power tubes have been around for 66 years, they are still quite popular for use in ...

There’s a mystique in audiophile circles about tube amplifiers. They can have a very nice sound which is attributed to their even-harmonic distortion, but they are often portrayed as requiring rare ...

Why you can trust What Hi-Fi? Our expert team reviews products in dedicated test rooms, to help you make the best choice for your budget. Find out more about how we test. Italian manufacturer Unison ...

An impressive Moog filter emulation for a simply bargainous price, though it could do with more modulation options. Best synthesizers 2025: Top analogue, digital, mono and polysynths Best guitar VSTs ...

Please note: Due to publication error, we will be rerunning a corrected version of this Design Idea in our June 12th issue. We apologize for the error. Control grid ...