The Rocktron HUSH Super C is a rack-mount noise reduction unit for guitar. Rocktron describes it as a stereo noise reduction system in which a single set of HUSH Threshold and Gate Threshold controls is used to manipulate both channels simultaneously, so one set of adjustments covers both sides of a stereo signal1. The company rates it at 72dB of effective noise reduction with a dynamic range of 105dB, and says it works toward eliminating hiss, hum, crackle and other annoying noise problems from your setup12.
How it works
The Super C carries Rocktron's V.I.R. circuitry, short for Variable Integrated Release. Rocktron says this allows every note you play to shine through and sustain naturally, without gate chop-off, which is the abrupt cut-off of a decaying note that a simple gate can produce1. The two threshold controls, HUSH Threshold and Gate Threshold, manipulate both channels at once, so a stereo setup is tuned with a single set of knobs1.
Specifications
| Specification | Value |
|---|---|
| Effective noise reduction | 72dB |
| Dynamic range | 105dB |
| Noise floor | -100dBu |
| Frequency response | ±.5dB, 10Hz, 27kHz |
| THD + Noise | .041% @ 0dBu, 1kHz (typ) |
| Maximum input level | +15dB (+4 Ref.) / +5dB (-10dB Ref.) |
| Input impedance | 470 ohms |
| Output impedance | less than 100 ohms |
| Current consumption | 385mA |
| Dimensions | 19″ x 6″ x 1¾″ |
All figures from Rocktron's product page1.
Where it sits in the HUSH range
Rocktron's HUSH noise reduction has been used by professionals for nearly two decades, according to the company2. The Super C is one of several HUSH units covered on this site: the Rocktron HUSH Ultra, the dual-channel Rocktron Hush 2X, the Rocktron HUSH PRO, and pedal-format versions such as Rocktron HUSH The Pedal and the Rocktron MicroHUSH. Compared with pedal-format noise suppressors like the Boss NS-2 Noise Suppressor, the Super C is a rack unit intended to live in a guitar rack rather than on a pedalboard.
Rocktron lists the current consumption at 385mA, a heavier draw than most pedals take, so the rack power supply needs to be sized for it1.
Videos
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Hammy Technoid
Questions
Is the Rocktron HUSH Super C stereo?
Yes. Rocktron describes the Super C as a stereo noise reduction system in which a single set of HUSH Threshold and Gate Threshold controls is used to manipulate both channels simultaneously. That means one set of adjustments covers the left and right channels together rather than requiring separate settings for each side.
What does V.I.R. mean on the HUSH Super C?
V.I.R. stands for Variable Integrated Release. Rocktron says this circuitry allows every note you play to shine through and sustain naturally, without the gate chop-off that can cut off a decaying note. It is Rocktron's way of describing how the release of the reduction responds to the note rather than clipping it abruptly.
How much current does the HUSH Super C draw?
Rocktron lists the current consumption of the HUSH Super C at 385mA. That is a substantial draw for a rack unit, so it is worth accounting for when planning a rack power supply.
How big is the HUSH Super C rack unit?
Rocktron gives the dimensions as 19 inches by 6 inches by 1 3/4 inches, the standard width for a single rack space unit. It is designed to sit in a guitar rack alongside other signal processing gear.
What is the input impedance of the HUSH Super C?
Rocktron lists the input impedance at 470 ohms, with an output impedance of less than 100 ohms. These figures describe how the unit loads the signal feeding it and drives whatever comes after it in the rack.
Sources (2)
- HUSH Super C, rocktron.com, 2024-08-28
- HUSH Super C Guitar Noise Reduction, Rocktron, 2024-08-28
