The Warm Audio WA76 is an analog, rack-mounted studio compressor. Warm Audio positions it as a recreation of the vintage "Rev D" FET compressors, a family of units the maker calls one of the fastest and most powerful studio compressors of all time, known for ultra-responsive dynamic control with analog grit1. Guitar World has described it as Warm Audio's rack-mounted WA76 compressor2.
What it does
The WA76 applies fast, heavy dynamic control in the style of the classic FET limiters. Warm Audio describes the circuit as delivering the same legendary performance of vintage "Rev D" FET compressors, with a character built on ultra-responsive dynamic control and analog grit1.
One signature feature carries over from the original design: the "All-buttons in" mode, which Warm Audio says works by driving the output into harmonic distortion1. That is the pushed, saturated setting this style of compressor is known for when every ratio button is engaged at once.
Controls
The output control adjusts the amount of makeup gain applied to the output signal. It sits on a numerical scale showing 54 dB to 0 dB, and turning the knob clockwise adds makeup gain1.
Warm Audio's own product pages describe this 54 dB to 0 dB scale two different ways: one page says the control sets makeup gain on the output signal, while another says it determines the level of the signal entering the WA76 and the compression threshold, with higher settings resulting in increased amounts of limiting or compression. The maker's pages disagree on what the knob does, so both descriptions are given here13.
Applications
Warm Audio suggests the WA76 for vocal work, applying heavy dynamics controls for present "in-front" lead vocals and tight BGVs (background vocals)1.
The pedal version
Warm Audio has also offered the same compression in pedal form as the Pedal76, repackaging the rack-mounted WA76 circuit for players building a pedalboard rather than a rack2. For an overview of the wider category, see Compressor Pedals.
Videos
Warm Audio
David Domminney Fowler
Barry Johns Studio Talk
Questions
Is the Warm Audio WA76 analog or digital?
The WA76 is an analog unit. Warm Audio describes it as delivering ultra-responsive dynamic control with analog grit, and the circuit follows the design of vintage Rev D FET compressors, the family of fast limiters known for aggressive, characterful compression.
What is the all-buttons-in mode on the WA76?
All-buttons-in is a mode where all the ratio buttons are engaged at once. Warm Audio says it drives the output into harmonic distortion, which is the harder, more saturated character players and engineers associate with this style of FET limiter when pushed hard.
Is there a pedal version of the WA76?
Yes. Warm Audio announced the Pedal76, an all-analog pedal that repackages the rack-mounted WA76 compressor, itself a recreation of the Universal Audio 1176, at a price of $269 as of the September 2024 announcement.
Sources (3)
- Warm Audio WA76 Mono FET Compressor, Warm Audio
- “Delivers the OG of bold chorus sounds. We're thrilled to authentically bring that tone back to pedalboards”: Warm Audio debuts its take on the revered vintage chorus beloved by John Frusciante, Guitar World, 2024-09-25
- Warm Audio Pedal76 All-Analog Compressor Pedal, Warm Audio




