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Rocktron HUSH Ultra, Instruction Manual

The Rocktron HUSH Ultra is a powerful noise reduction system designed for musicians seeking studio-quality sound. For a seamless setup and optimal performance, make sure to consult the detailed and comprehensive Instruction Manual. Download it for free from manualshive.com to unlock the full potential of your HUSH Ultra and enjoy clean, distortion-free tones.

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Copyright © 2009 GHS Corporation

All Rights Reserved.

Your HUSH

®

 Ultra noise reduction system has been tested and complies with the following Stan-

dards and Directives as set forth by the European Union:

 

 

Council Directive(s):

 

 89/336/EEC 

Electromagnetic Compatibility

 

 

Standard(s):

 

 

 EN55013, EN50082-1

This means that this product has been designed to meet stringent guidelines on how much RF 

energy it can emit, and that it should be immune from other sources of interference when properly 

used. Improper use of this equipment could result in increased RF emissions, which may or may 

not interfere with other electronic products.

To insure against this possibility, always use good shielded cables for all audio input and output 

connections. Also, bundle audio cables separately from the AC power cables. These steps will help 

insure compliance with the Directive(s).

For more information about other Rocktron products, please see your local dealer or one of our 

importers closest to you (listed on the enclosed warranty sheet).

Summary of Contents for HUSH Ultra

Page 1: ...e or more of the following U S Patents 4538297 4647876 4696044 4745309 4881047 4893099 5124657 5263091 5268527 5319713 5333201 5402498 and 5493617 Other patents pending Foreign patents pending HUSH is a registered trademark of GHS Corporation ...

Page 2: ...and that it should be immune from other sources of interference when properly used Improper use of this equipment could result in increased RF emissions which may or may not interfere with other electronic products To insure against this possibility always use good shielded cables for all audio input and output connections Also bundle audio cables separately from the AC power cables These steps wi...

Page 3: ...7 TRUE BYPASS Function 17 HUSH Function 18 GLOBAL Function 19 MIDI CTRLINK Function 21 PRESET MAPPING Function 22 MIDI DUMP LOAD Function 22 FUNCTION PARAMETER RANGE Listings 23 9 Operating the HUSH Ultra 24 Display Description 24 Selecting a preset 25 Changing preset parameters 26 Storing changed preset parameters 27 Title Edit 28 Preset Mapping 30 MIDI DUMP LOAD 31 MIDI IN 33 MIDI THRU OUT 33 Ph...

Page 4: ...n patented by Rocktron and used for years in thousands and thousands of guitar rigs and recording studios The HUSH Ultra features True Bypass an LCD display and programmable presets with MIDI control allowing you to tailor your HUSH settings on individual presets to suit your needs The HUSH Ultra provides BOTH 1 4 and XLR inputs and outputs and is easy to setup and easy to use Wipe out noise elimi...

Page 5: ... OR ADDITIONS TO THIS EQUIP MENT AT ANY TIME DO NOT TAMPER WITH INTERNAL ELECTRONIC COMPONENTS AT ANY TIME FAILURE TO FOLLOW THESE INSTRUC TIONS MAY VOID THE WARRANTY OF THIS EQUIPMENT AS WELL AS CAUSING SHOCK HAZARD POWER REQUIREMENTS This unit accepts power from the 9VAC 1 5A adaptor supplied with the unit This 9 volt RMS AC voltage is internally processed by a voltage doubler which generates a ...

Page 6: ...e When in EDIT MODE this control is used to ADJUST the selected PARAMETER within the selected FUNCTION See section titled CHANGING PRESET PARAMETERS in this manual for more information on the PARAMETER ADJUST control GATE THRESHOLD PARAMETER SELECT This control is used to determine the level at which the gate will begin to operate As the input signal drops below this level the gate will activate a...

Page 7: ...wer from the 9VAC adapter supplied with a Rocktron foot controller sold seperately See section called PHANTOM POWER for more information MIDI IN jack Use this jack to plug in your MIDI controller This jack is a 7 Pin MIDI Jack however a standard 5 Pin MIDI Cable can be used If plugging into a Rocktron MIDI controller such as the All Access MIDI Mate or MIDI Xchange we recommend using the Rocktron ...

Page 8: ...DIT button to save your changes 5 The display will blink STORE AT PRESET Note to cancel the store mode at anytime turn the PARAMETER ADJUST KNOB 6 Use the PRESET FUNCTION SELECT knob and pick the destination preset where you would like to save your changes 7 Press and release the STORE EDIT button You must adjust the Hush Threshold or Gate Threshold in order to use the store function When not in t...

Page 9: ...ignal when the input signal level drops below a prescribed threshold level volume On the HUSH Ultra this threshold is determined by the Gate Threshold control on the front panel This control should be set so that it doesn t cut notes off i e set too high yet doesn t activate long after a note ends allowing the noise floor to remain audible This circuit is combined with the Variable Integrated Relea...

Page 10: ...10 This connection is an example of a mono connection from a preamp and a multi effects processor System Connections ...

Page 11: ...11 This connection is an example of a stereo connection from a stereo preamp and multi effects processor System Connections ...

Page 12: ...12 This is a connection example of how you can connect the HUSH Ultra to use with a guitar amp head System Connections ...

Page 13: ...13 This is a connection example of how you can connect the HUSH Ultra to use with a guitar amp combo System Connections ...

Page 14: ...elf allowing the unit to be used as strictly a downward expander HUSH Section Rocktron s patented HUSH noise reduction is a single ended system that com bines the principles of dynamic filtering and low level downward expansion Dynamic Filtering Dynamic filtering is achieved by dynamically controlling a low pass filter to open and close the bandwidth of the output signal depending upon the amount ...

Page 15: ...ic filter will open fully to pass the signal and eliminate the possibility of a loss of high end frequency response Downward Expansion 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...

Page 16: ...RS you must first enter into the EDIT MODE The HUSH Ultra is set up to allow you to first access each function via the FUNCTION SELECT knob then the parameter list for each function via the PARAMETER SELECT knob and finally the adjustable value for each parameter via the PARAMETER ADJUST knob The functions available for each preset are dependent upon which effect is currently recalled The remainde...

Page 17: ...function The PARAMETER SELECT knob will allow you to access these Global parameters TRUE BYPASS Function This TBYPASS parameter allows you to select either ON or OFF When ON the True Bypass is active and the signal passes directly through the HUSH Ultra unaffected When OFF is selected the unit is active and True Bypass is off and HUSH is active TBYPASS TRUE BYPASS uses high quality relays to perfo...

Page 18: ... was set at 20 dB and the input signal dropped below 20 dB downward expansion would begin The GATE THRESHOLD his control is used to determine the level at which the gate will begin to operate As the input signal drops below this level the gate will activate and downward expansion will begin HUSH I O EXP THRESH1 GATE THRESH1 HUSH IN OUT HUSH_ THRSH_A 1 64 GATE_ THRSH_A 1 64 HUSH_ THRSH_B 1 64 GATE_...

Page 19: ... whether the CHNLINK Function is active or ON or not active or OFF CONTINUOUS CONTROLLER NUMBER EXPANDER THRESHOLD 1 parameter determines the level at which downward expansion begins For example if the EXP THRESHOLD was set at 20 dB and the input signal dropped below 20 dB downward expansion would begin GATE THRESHOLD 1 control is used to determine the level at which the gate will begin to operate...

Page 20: ...ward expansion begins For example if the EXP THRESHOLD4 was set at 20 dB and the input signal dropped below 20 dB downward expansion would begin Note that this is only used with the MIDI MCC Link is active GATE THRESHOLD 4 control is used to determine the level at which the gate will begin to operate As the input signal drops below this level the gate will activate and downward expansion will begi...

Page 21: ...C_NUM_B will map to HUSH_ THRSH_B and HUSH_ GATE_B parameters 86 CC_NUM_C will map to HUSH_ THRSH_C and HUSH_ GATE_C parameters 87 CC_NUM_D will map to HUSH_ THRSH_D and HUSH_ GATE_D parameters 88 TBYPASS MCC controller to be used for TRUE BYPASS 89 Note It is recommended that PROGRAM CHANGES in the GLOBAL FUNCTION is set to off when using the MCC LINK mode MCC LINK is programmable per preset if a...

Page 22: ...will be recalled is on the right side of the screen Note PRESET MAP in the GLOBAL FUNCTION must be set to ON for mapping to be active PRESET MAPPING MIDI DUMP LOAD Function This function allows you to dump 1 preset from one HUSH Ultra to a second HUSH Ultra or a MIDI sequencer device This function allows you to dump ALL presets from one HUSH Ultra to a second HUSH Ultra or MIDI sequencer device 1 ...

Page 23: ...FF ON CC_NUM_A 0 TO 120 CC_NUM_B 0 TO 120 CC_NUM_C 0 TO 120 CC_NUM_D 0 TO 120 TBYPASS MCC 0 TO 120 EXP THRSH1 Expander Threshold Level 1 64 GATE THRSH1 Gate Threshold Level 1 64 EXP THRSH2 Expander Threshold Level 1 64 GATE THRSH2 Gate Threshold Level 1 64 EXP THRSH3 Expander Threshold Level 1 64 GATE THRSH3 Gate Threshold Level 1 64 EXP THRSH4 Expander Threshold Level 1 64 GATE THRSH4 Gate Thresh...

Page 24: ...isplay on the HUSH Ultra provides you with the information about the preset you are in 1 u s e r 1 PRESET NAME PRESET NUMBER The HUSH Ultra provides 128 stored presets Any of the 128 presets can be called up at any time via the PRESET knob or via a MIDI Controller Each preset has the following Functions available at all times TITLE EDIT TRUE BYPASS HUSH GLOBAL MIDI CTRLINK PRESET MAPPING MIDI DUMP...

Page 25: ...show the selected preset number The second way to select a preset with a MIDI Controller such as the Rocktron MIDI Xchange MIDI Mate All Access or All Access LTD See section on MIDI Connection on how to connect a MIDI Pedal to the HUSH Ultra and follow all instructions that come with your MIDI Pedal 1 u s e r 1 1 Turn the preset select knob to the desired preset 2 u s e r 2 ...

Page 26: ...STORE EDIT button as shown above When in EDIT MODE the display will show you are in EDIT MODE on the top line STEP 2 To access the first FUNCTION to be adjusted turn the PRESET FUNCTION SELECT knob The display will then show G L O B A L E D I T M O D E STEP 3 To access the first PARAMETER to be adjusted turn the GATE THRESHOLD PARAM ETER SELECT knob The display will then show M I D I R X 1 6 G L O B...

Page 27: ...ike to store the changes made at a different preset number while viewing a function or parameter title press the STORE button to start the store procedure The words STORE AT PRESET will now be flashing under the changed preset name Next turn the PRESET SELECT knob to the desired preset number and press the STORE EDIT button The word STORED will flash once and the preset will be stored at the selecte...

Page 28: ...elect the character above the part of the current title to be edited The letter to be adjusted will have a flashing box over the character selected Step 2 Use the PARAMETER ADJUST knob to select the desired character for the current position flashing box Step 3 t i t l e e d i t t i t l e e d i t 1 U s e r 1 8 Flashing box Title Edit Character to be changed t i t l e e d i t 1 h U s e r 1 8 Flashing...

Page 29: ...ion before pressing the STORE button will erase any editing that was done in Title Edit Also after flashing STORED the HUSH Ultra will exit the title edit mode and return to the main preset number After all the characters have been edited as needed press the STORE button to save the new title to memory The HUSH Ultra will flash STORED briefly Step 5 Title Edit continued t i t l e e d i t 1 h u U s e ...

Page 30: ...rom a midi controller for preset 1 The actual preset recalled will be 15 Note PRESET MAP in the GLOBAL FUNCTION must be set to ON for map ping to be active IMPORTANT After you have completed all your preset mapping you must execute STORE before leaving the PRESET MAPPING function PRESET MAPPING Function Step 2 Step 3 Step 1 Use FUNCTION SELECT while in EDIT MODE to select the PRESET MAP PING funct...

Page 31: ...ly as a starting point 100ms after F7 optional If a MIDI sequencer is used to store the data record the Sysex data in real time or adhere to the param eters given above MIDI DUMP LOAD Step 2 Step 3 M I D I D U M P L O A D Step 1 Connect a standard MIDI cable from the MIDI OUT of the transmitting HUSH Ultra to the MIDI IN of the receiving HUSH Ultra Consult MIDI Connection drawing for more informat...

Page 32: ...a MIDI Utility program use the PARAMETER SELECT knob select BULK DUMP LOAD and follow Steps 4 and 5 Step 5 On the transmitting HUSH Ultra press the STORE button to dump the preset The transmitting HUSH Ultra will display DUMPED M I D I D U M P L O A D 1 d u m p e d M I D I D U M P L O A D b u l k d u m p l o a d MIDI DUMP LOAD continued ...

Page 33: ...USH Ultra will allow you to transmit and control other MIDI capable devices thru the HUSH Ultra Follow the connection steps in the CONNECTIONS SECTION of this manual Follow the connection steps in the CONNECTIONS section of this manual This standard 5 pin DIN connector can be connected to the MIDI IN jack of another device via a stan dard MIDI cable There are limitations to the number of devices t...

Page 34: ...ould be placed during a performance or the need to run an extension cord out to the footswitch Instead of inserting the AC adaptor into the POWER jack of the footswitch as you would normally plug it into the PHAN TOM POWER jack on the HUSH Ultra This will power the Rocktron MIDI foot controller through pins 6 and 7 of the MIDI cable connecting the two units The Rocktron RMM900 7 pin MIDI cable mus...

Page 35: ...p 405mA 19 x 4 x 1 9vac 2000mA Maximum Input Level Input Impedance 1 4 Jacks Output Impedance 1 4 Jacks Input Impedance XLR Jacks Output Impedance XLR Jacks Effective Noise Reduction Frequency Response Dynamic Range Noise Floor THD Noise Current Consumption Dimensions Power Specifications Note 0dBv 0 775V RMS CE Approved ...

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Page 38: ...38 Rocktron A Division of GHS Corporation 2813 Wilbur Avenue Battle Creek MI 49037 USA Rocktron Phone 1 269 968 3351 Email info rocktron com www rocktron com 2009 0004 Rev 6 18 09 ...

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