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HUSH Ultra Rack Guitar Effects Processor MIDI Controllable
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Hush your hiss.
When used properly, the Rocktron Hush Ultra is completely transparent (i.e., it should not effect the audio signal-only the noise). The Hush Ultra front panel provides two controls which each manipulate both channels simultaneously. The Hush Threshold control sets the amount of noise reduction required for a given input signal, while the Gate Threshold control provides additional downward expansion when increased. (The Gate Threshold control may also be used by itself, allowing the unit to be used as strictly a downward expander.)
Rocktron's patented Hush noise reduction is a single-ended system that combines the principles of dynamic filtering and low-level downward expansion.
Dynamic filtering is achieved by dynamically-controlling a low-pass filter to open and close the bandwidth of the output signal. The filter bandwidth will only open far enough to pass the highest frequency information in the input signal, thus reducing the noise above it. For example, if the highest frequency present in the input signal is 8kHz, the filter will open to pass up to 8kHz while the noise from 8kHz to 20kHz would be reduced. If a signal with frequency components up to 20kHz appears at the input, the dynamic filter will open to its full extreme (40kHz).
The second half of the Hush process incorporates downward expansion. The low level expander of the Hush system operates like an electronic volume control. The Hush system utilizes a voltage-controlled amplifier (VCA) circuit which can control the gain between the input and the output from unity to 30, 40 or even 50dB of gain reduction. As the input signal level drops below the user preset threshold point, downward expansion begins. It is at this point that the expander acts like an electronic volume control and gradually begins to decrease the output signal level relative to the input signal level.
Features
- Preset select/function select
- In/out button & LED
- Display window
- Store/Edit button
- Hush threshold/parameter adjust
- Gate threshold/parameter select
- Gate release LED
- REF switch
- XLR and 1/4" mono jacks
- Phantom power jack
- MIDI in jack
- MIDI Thru/out jack
- Power jack
Wipe out noise, eliminate hiss, crackle and other noise problems with noise-reduction circuitry.
HUSH Ultra Rack Guitar Effects Processor MIDI Controllable Specifications:
- Maximum Input Level: +15dB (+4 Ref.), +5dB (-10dB Ref.)
- Input Impedance 1/4" Jacks: 470 kOhms
- Output Impedance 1/4 Jacks:100 Ohms
- Input Impedance XLR Jacks: 10 kOhms
- Output Impedance XLR Jacks: 2.2 kOhms
- Effective Noise Reduction: up to 72 dB
- Frequency Response: ±.5dB, 10Hz - 27kHz
- Dynamic Range: 105 dB
- Noise Floor: -100 dBu
- THD + Noise: -100 dBu
- Current Consumption: 405 mA
- Dimensions: 19 x 4 x 1-3/4"
- Power: 9 vac 2000mA
- Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
- Orders placed before 3 p.m. ET usually ship the same business day.
Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.
Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.