Signal Processors

API have been making excellent solid‑state outboard and consoles for decades, but their latest venture sees them using valves for the very first time.

Not all 500‑series racks are created equal. Here’s what you need to know to make your choice.

We check out API’s 500-series version of the 2500 bus compressor.

Could API's latest 500-series module be an essential purchase for Lunchbox users?

This compressor offers automatic time constants to help to keep things sounding natural, even with plenty of gain reduction. Is it a weapon worth adding to your arsenal of mix tools?

API remind us that the best analogue gear is still that bit more classy than some digital recreations...

Hugh Robjohns looks at a pedigree mix compressor with a number of rather unusual extra functions up its sleeve...