Signal Processors

Its combination of ‘See‑Saw’ band and filters make this classy EQ really versatile.

Compatible with both the 500‑series and the 51X modular formats, these classy Allan Bradford‑designed modules offer up analogue magic in spades.

This powerful 500‑series processor combines Wes Audio’s cutting‑edge digital control technology with the timeless sound of valve compression.

Based on the chorus section of Roland’s classic RE‑501, this isn’t your average 500‑series module!

The audio files available on this page accompany my review of the...

H2 aim to put the legendary sound of Olympic Studios in your 500‑series rack.

This refreshed range boasts new features and improved specs — but the same great value for money.

We test this stylish take on a classic EQ design.

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

With so many modules on the market, how do you make the right choices?

Two channels of Pultec-style EQ in a 500‑series module would be enough for most manufacturers. But not for Wes...

The most classic of '80s reverberators has been reinvented — complete with retro controls — for the 500-series.

We put this versatile homage to the classic British bus compressor through its paces.

This little module combines quiet, clean electronics with a characterful bucket-brigade delay line.

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

We cast our eyes and ears over Mr Neve’s elegant contributions to the 500-series format.

These modules can be mixed and matched to create a versatile, high-quality, Neve-esque channel strip for an impressive price.

Trident’s celebrated EQ is now available as a 500-series module, and what better to house it in than the company’s very own chassis?

Explore the ups and downs of Phoenix’s transformer-laden tone control...

This stylish module brings the ‘blue stripe’ revision of the UREI 1176 to the 500 series.

These classy new French-made modules are inspired by vintage designs, but they also add a few unexpected and useful features.