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Warm Audio's WA76 set its target high: the most iconic solid-state limiting amplifier in history.
Our goal was to make a compressor of this pedigree affordable for the first time, without compromising the quality and design parameters that make this type of compressor so desirable.
All Buttons In
The WA76 can reproduce the classic effect known as ‘All Buttons In’ mode, sometimes also referred to as ‘British Mode’ or the ‘Four Button Trick’. Originally an accident due to the mechanical nature of the interconnected latching switches, this mode is reproduced by pushing in all four ratio buttons simultaneously and getting them to latch. This can take a bit of practice. The resulting compression curve is aggressive and unmistakably unique, and can be heard on the drum tracks of many classic recordings.
All-buttons-in compression is typically characterized by having a very aggressive compression ratio, attack and release curves that are more drastic plateaus opposed to gentler slopes, and more audible distortion or ‘overdrive’ on the signal. Initial transients are more likely to come through loudly, followed by heavy compression curve sometimes described as having a ‘sucking’ effect as the compressor releases. Because this mode is considered a design accident, faithfully maintained; it is normal for the meter function to ‘peg out’ and cease providing accurate metering.
We have faithfully reproduced the circuitry of the revision D, generally considered one of the best and most popular among the different versions made over the years. We’ve used all discrete, through-hole components, high quality CineMag input and output transformers, and a class A circuit that stays true to the legacy design.
- Class A line-level output amplifier
- Inspired by the sought-after D revision of the iconic solid-state limiting amplifier
- Completely discrete signal path
- Utilizes US-made Cinemag input and output transformers
- Supports the famous all-buttons-in ratio setting
- Ultra-fast attack time; 55db of gain
- Input impedance is 600 ohms, bridges-T control (floating)
- 20Hz–20kHz (±1dB) frequency response
- XLR and TRS inputs and outputs
- Less than 0.4% total harmonic distortion from 50Hz–20kHz with limiting
- Signal to noise ratio is greater than 74dB at +25dBm
- Equivalent input noise (EIN) is -104.1dBm
- Attack time is 20 microseconds to 800 microseconds
- Release time is 50 milliseconds to 1 second
- Meter provides dB gain reduction and dB output
- 2U, 19" rackmount chassis
- 1-year warranty
- Utilizes premium grade input and output CineMag USA Transformers.
- True to the Classic '76 compressor in design and performance.
- Completely discrete signal path.
- Modeled after the D revision.
- Supports the famous "all buttons in" ratio setting.
- Ultra fast attack time.
- Class A line level output amplifier.
- Input impedance - 600 ohms, bridges-T control (floating).
- Frequency Response ± 1 dB 20 Hz to 20kHz.
- XLR and TRS inputs. XLR and TRS outputs.
- 50db of gain.
- Less than 0.4% total harmonic distortion from 50 Hz to 20 kHz with limiting.
- Signal to noise ratio is greater than 74 dB at +25 dBm.
- EIN -104.1 dbm.
- Attack time, 20 microseconds to 800 microseconds.
- Release time, 50 milliseconds to 1 second.
- Meter provides dB gain reduction and dB output.
- SWITCHABLE 115/230 VOLT IEC POWER INLET.
- 19″ Rackmount chassis, 2U.
- 1-year warranty.