Signal Processors

Ever wondered what a ‘four‑quadrant analogue multiplier compressor’ might sound like? Neither had we — but it turns out to be something a bit special!

Now you can rock the MOD on your desktop!

This studio DI box goes further than most, adding character to a range of sources.

If you're seeking a performance-friendly effects processor with a top-notch signal path, this might be just what the doctor ordered...

Ever wished you could play your Tele but hear your Les Paul? This clever box of tricks makes that possible...

Widely touted as Boss's response to UA's popular OX, the Tube Amp Expander actually offers a contrasting approach. Will one of them be a clear winner?

The Filterbank's status as an analogue sound mangler is legendary. Can this smaller variant keep it relevant in the modern world?

Don’t have a great-sounding room? Can’t turn your amp up to get the sounds you want? Want to turn down your speaker without sacrificing your tube amp’s tonality? Maybe this changes everything...

TL Audio's successful Fat 1 stereo compressor now has a new sibling with its own built-in mic preamp. Paul White delivers the SOS verdict.

We test ART's two compact tube processors to see if they sound bigger than they look.