Rocktron INTELLIFEX LTD User manual

May be covered by one or more of the following: U.S. Patents #4538297, 4647876, 4696044, 4745309, 4881047, 4893099, 5124657, 5263091,
5268527, 5319713 and 5333201. Other patents pending. Foreign patents pending.
24-BIT DIGITAL SIGNAL PROCESSOR
USER'SMANUAL
HUSH
®
licensed by
®

PRECAUTIONS
NOTE: IT IS VERY IMPORTANT THAT YOU READ THIS SECTION TO PROVIDE YEARS
OF TROUBLE FREE USE. THIS UNIT REQUIRES CAREFUL HANDLING.
All warnings on this equipment and in the operating instructions should be adhered to and all
operating instructions should be followed.
Do not use this equipment near water. Care should be taken so that objects do not fall and liquids
are not spilled into the unit through any openings.
The power cord should be unplugged from the outlet when left unused for a long period of time.
DO NOT ATTEMPT TO SERVICE THIS EQUIPMENT. THIS EQUIPMENT SHOULD BE
SERVICED BY QUALIFIED PERSONNEL ONLY. DO NOT MAKE ANY INTERNAL AD-
JUSTMENTS OR ADDITIONS TO THIS EQUIPMENT AT ANY TIME. DO NOT TAMPER
WITH INTERNAL ELECTRONIC COMPONENTS AT ANY TIME. FAILURE TO FOLLOW
THESE INSTRUCTIONS 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 bipolar ±15 volts to maintain
the headroom and sound quality of professional, studio quality equipment. Using an external power
source such as this minimizes excessive noise and hum problems often associated with internal
transformers, providing optimal performance for the user.
OPERATING TEMPERATURE
Do not expose this unit to excessive heat. This unit is designed to operate between 32° F and 104°
F (0° C and 40° C). This unit may not function properly under extreme temperatures.
Copyright ©1995 Rocktron Corporation.
All rights reserved.

Contents
1. Introduction .................................................................................................................................. 1
2. Quick Setup .................................................................................................................................. 2
3. Front Panel ................................................................................................................................... 3
4. Rear Panel .................................................................................................................................... 6
5. Connections ................................................................................................................................. 8
6. Principle of Operation ............................................................................................................... 11
A. MIXER SECTION ............................................................................................................................. 11
B. REVERB SECTION .......................................................................................................................... 13
C. DELAY SECTION ............................................................................................................................. 15
D. DUCKER SECTION .......................................................................................................................... 17
E. PITCH CHANGE SECTION .............................................................................................................. 18
F. HUSH® SECTION ............................................................................................................................ 21
7. Configurations ........................................................................................................................... 22
A. HUSH; CHORUS; DELAY; REVERBConfiguration .......................................................................... 23
B . HUSH; REVERB Configuration ........................................................................................................ 25
C. HUSH; DELAY; DUCKERConfiguration ........................................................................................... 27
D. HUSH; 8 VOICE CHORUS; DELAY Configuration ........................................................................... 30
E. HUSH; PITCH SHIFT; DELAY Configuration .................................................................................... 32
F. HUSH; PITCH SHIFT; DELAY; REVERB Configuration ................................................................... 34
8. Operating the Intellifex .............................................................................................................. 36
A. RECALLING A STORED INTELLIFEX LTD PRESET ...................................................................... 36
B. CHANGING PRESET PARAMETERS ............................................................................................. 37
C. STORING MODIFIED PARAMETER VALUES ................................................................................ 38
D. EDITING A PRESET TITLE ............................................................................................................. 40
E. SELECTING A "POWER ON" PRESET ........................................................................................... 41
9. MIDI Operation ........................................................................................................................... 42
A. MIDI CONTROLLER ASSIGNMENTS .............................................................................................. 42
B. MIDI PROGRAM MAPPING ............................................................................................................. 45
C. MIDI CHANNEL ................................................................................................................................ 47
D. MIDI DUMP/LOAD ............................................................................................................................ 48
Dumping a single Intellifex LTD user preset into another Intellifex LTD: .......................................... 48
Dumping the Intellifex user memory into a sequencer: .................................................................... 50
Reloading the user memory from a sequencer: ................................................................................ 52
Error Messages ................................................................................................................................ 53
E. FACTORY RESTORE ...................................................................................................................... 54
10. Appendix .................................................................................................................................. 55
A. FACTORY PRESETS ....................................................................................................................... 55
B. MIDI IMPLEMENTATION CHART .................................................................................................... 56
C. SPECIFICATIONS ........................................................................................................................... 57

1
1. Introduction
The Rocktron Intellifex®LTD is a 24-bit digital effects processor utilizing three
individual 16-bit converters and Sigma-Delta A/D conversion, achieving a 64x
oversampling rate and better than 100dB dynamic range. The Intellifex LTD is totally
programmable and allows for complete MIDI control. The unit features pitch shifting,
8 voice stereo chorusing effects, digital delay effects including 2-tap, stereo and ping
ponging effects, unsurpassed digital reverb quality and highly flexible configuration
programming allowing for simultaneous operation of up to 5 effects plus complete
mixing capabilities. The unit also offers Hush Systems first fully digital implementa-
tion of patented HUSH®noise reduction at the units input, along with delay and
reverb ducking capabilities.
For a thorough explanation of the Intellifex®LTD and its functions, please read
this manual carefully and keep it for future reference. A better understanding of how
the Intellifex®LTD operates will help make designing your own preset sounds much
easier.
After removing the Intellifex®LTD from the box, save all packing materials in
case it becomes necessary to ship the unit.
WHAT MAKES THE INTELLIFEX
®
LTD UNIQUE?
* Super quiet operation due to use of digital HUSH®and high quality 16-bit converters.
* High purity sound due to the use of a 64X oversampling A/D converter, which samples the
signal 64 times as often as a conventional converter, and also due to the use of a separate dual
D/A converter. Most "bargain" digital effects units use a single converter multiplexed 3 ways,
for decidedly higher distortion and lower dynamic range.
* 24-Bit processing and memory circuits to maintain maximum dynamic range.
* Ability to store up to 8 unique MIDI controller patches with each preset.
* Very high quality effects algorithms.
* Highly stereo effects with panning available on almost all signals.
* 8 Voice chorusing with an enormous number of parameters for the richest chorus ever.
* High quality 4 voice pitch shifting over 3 full octaves.
* 2-voice pitch shifting or 4-voice chorusing offered simultaneously with Hush®, Delay and
Reverb.
* Programming via knobs instead of push buttons.
* Easy to read, wide viewing angle display.
1. Introduction

2
2. Quick Setup
2. Quick Setup
STEP 3 Now press the STORE button a second time to store the modified values
into the selected preset location. The Intellifex LTD will display "STORED"
briefly before displaying the new preset number/title.
RECALLING A STORED INTELLIFEX LTD PRESET
STEP 1 To recall a stored Intellifex LTD preset, first turn the PRESET control to
the desired preset number you wish to recall. The display will alternate
between the preset number/title selected and:
PRESS RECALL FOR
STEP2 To call up the preset you have selected, press the RECALL button. The
display will now show only the new preset number/title.
14 PRESET TITLE
CHANGING PRESET PARAMETERS
STEP 1 The parameter menu for each effect can be called up via the FUNCTION
SELECT control. Turn this control to the effect to be changed.
**** REVERB ****
STEP 2 Turn the PARAMETER SELECT control to select which parameter select
the parameter to be modified.
REV DECAY 59
STEP 3 Use the PARAMETER ADJUST control to modify the parameter value.
The LED above the STORE button lights to indicate that a parameter
value has been modified from the stored preset.
REV DECAY 32
STEP 4 The COMPARE button may be used to compare the stored value to the
new one.
REV DECAY 59
STORING MODIFIED PARAMETER VALUES
STEP 1 To store modified parameter values, press the STORE button while
viewing a parameter or effect title to begin the store procedure. The
Intellifex LTD will alternate displaying the current preset number/title and:
STORE TO PRESET
STEP 2 Turn the PRESET control to select the desired preset number to store the
new parameter values into (if the new values are to be stored into the
current preset location, this step is not necessary). User presets may be
stored in preset locations 1-80. Presets 81-160 are factory presets and
cannot be copied over. The Intellifex LTD will now alternate displaying the
new preset number/title and:
STORE TO PRESET
STORED
STEP 4 After the modified parameters have been stored into a new preset
location, the Intellifex LTD will display "COPY TITLE TOO?". This occurs
only when a new preset location is selected to store the modified
parameters into, and allows for the title from the original preset to be
copied to the new preset location as well. To copy the title, press the
STORE button a third time. The display will again flash "STORED".
NOTE 1 If it is not desired to copy the title from the original preset, turn either the
PRESET or FUNCTION SELECT control to exit the store procedure.
NOTE 2 If a modified preset is edited without completing the store procedure (i.e.
"STORED" displayed at least one time), all edited parameter values will
be lost and the preset will revert to its original condition the next time it is
recalled. When saving altered parameters, always make sure the Intellifex
LTD flashes "STORED" at least once before exiting the preset to ensure
that the desired modifications were stored into memory.

3
3. Front Panel
Some of the controls on the Intellifex®LTD front panel have more than one function,
dependent upon what mode the unit is currently operating in. Please read this section to
become better aquainted with these functions.
(1) POWER switch
(2) RECALL button:
This button is used to recall the displayed preset.
(3)PRESETcontrol:
The function of this control is dependent on the CONFIG button (located to the right
of the PRESET control).
When the CONFIG LED is off, turning the PRESET control will cause the Intellifex
LTD to exit its current function. The PRESET control may then be used to scroll
through the successive factory and user presets and titles stored in its memory.
When the CONFIG LED is on, the PRESET control is again used to scroll through
the successive presets, but instead of displaying preset titles the Intellifex LTD will
display the effect configuration stored for each preset.
(4) CONFIG button:
The CONFIG button is used to toggle between displaying either the preset title or
the configuration of the currently displayed preset. The configuration display
indicates both which effects the displayed preset executes and the order in which
they are executed. The LED above the CONFIG button is lit when the configuration
is displayed.
(5) DISPLAY panel:
The DISPLAY panel consists of 16 characters. Each character consists of 14
segments.
(6) COMPARE button:
The COMPARE button may be used to compare a modified parameter value to its
stored value. (If comparing an altered value to the stored value and the stored value
is currently being viewed, turning a knob or pressing a button that changes the
parameter value displayed will cancel the previous modified value.)
3. Front Panel

4
The COMPARE button may also be used to simultaneously compare multiple
modified parameters under the same effect heading (i.e. Reverb, Mixer, etc.) to the
stored values. To do so, turn to the effect heading where the modified parameters are
located and press the COMPARE button. When the STORE LED is off, the stored
parameter values are currently active. When the STORE LED is lit, the modifed
values are active.
If a knob is turned or a button is pressed which changes the effect heading when the
stored parameters are active (STORE LED off), any modified parameter values
under that heading will be lost. This is also true if a MIDI control change is received
while the stored parameters are active.
(7) PARAMETER ADJUST control:
This control is used to adjust the displayed parameter value. When the parameter is
changed from its original value, the LED above the STORE button will light until
either (a) the new value is stored, (b) a new preset is selected or (c) the parameter is
returned to its original value.
(8) STORE button:
This button is used to store values into the Intellifex LTD memory when modified.
See Chapter 8, section C, "Storing Modified Parameters" for more information.
(9)PARAMETERSELECTcontrol:
When monitoring parameter values, this control will scroll through the available
parameters under the current effect heading.
In the "TITLE EDlT" function, this control will scroll through the available
characters in the title that may be edited.
(10) FUNCTION SELECT control:
This control allows access to each function of the Intellifex LTD. Depending on
which configuration the current preset is built upon, these functions may include:
Preset Select Reverb Parameters
Mixer Parameters Title Edit
HUSH Parameters MIDI Controller Mapping
Chorus Parameters MIDI Program Mapping
Pitch Shift Parameters MIDI Channel
Delay Parameters Ducker Parameters
Factory Restore MIDI Dump/Load
(11) BYPASS button:
When pressed, the LED is lit and all effects are bypassed.

5
(12) INPUT LEVEL meter:
These LEDs provide visual indication of the peak level of the input signal. For the
optimal signal-to-noise ratio, it is best to adjust the input level so that the last LED
(0dB) is rarely lit. This will guard against the possibility of overdriving the unit.
(13) INPUT LEVEL control:
This control adjusts the unit's gain to match the signal level at the input of the
Intellifex LTD. The gain can be adjusted from -12dB to +12dB. Use the INPUT
LEVEL meter to determine the setting of this control.
(14) CLIP L.E.D.:
This L.E.D. is part of the output section and, when lit, indicates that the final analog
output is being overdriven because the Effects Level, Direct level, and Output Level
control are set too high. If this occurs, reduce these levels until this L.E.D. does not
light.
(15) OUTPUT LEVEL control:
This control is used to adjust the output level of the unit and may be adjusted from
zero signal to a small amount of gain.
(16)REFERENCELEVELswitch:
This switch determines the output range of the unit and may be set at either -10dB
or +4dB. When using professional studio equipment providing a nominal input level
of +4dB, it is recommended that the +4 setting on the Intellifex LTD be used for
best results. If connecting the Intellifex LTD to a high sensitivity input, such as the
input to a guitar amp, the -10 setting should be used.

6
4. Rear Panel
(1) RIGHT CHANNEL INPUT jack:
This standard 1/4" mono jack provides input to the right channel of the Intellifex
LTD. When using only one input (mono), this jack should be used.
(2) LEFT CHANNEL INPUT jack:
This standard 1/4" mono jack provides input to the left channel of the Intellifex
LTD. When using only one input, this jack should not be used.
(3) RIGHT CHANNEL OUTPUT jack:
This standard 1/4" mono jack provides an output for the right channel of the
Intellifex LTD. When using the unit in a mono application, either output jack may
be used.
(4) LEFT CHANNEL OUTPUT jack:
This standard 1/4" mono jack provides output for the left channel of the Intellifex
LTD. When using the unit in a mono application, either output jack may be used.
NOTE: When using a mono input (Right Channel INPUT jack) and a mono
output (either the Left or Right Channel OUTPUT jack), the left and right
effected signals will be summed at the single output.
(7) PHANTOM POWER jack:
This jack offers the ability to power the Rocktron MIDI Mate™Foot Controller from
a seven pin MIDI cable which connects from the MIDI Mate to the MIDI IN jack on
the rear panel of the Intellifex LTD, eliminating the need to find an AC outlet near
where the footpedal would be placed during a performance - or the need to run an
extension cord out to the MIDI Mate. Instead of inserting the adaptor into the MIDI
Mate™POWER jack, plug it into the PHANTOM POWER jack on the Intellifex
LTD. This will power the MIDI Mate™through pins 6 and 7 of the MIDI cable
connecting the two units. A 7-pin MIDI cable must be used and is available through
your Rocktron dealer.
(8) MIDI IN lack:
This 7-pin DIN connector receives MIDI information from the device which is
transmitting the MIDI commands for the Intellifex LTD to execute.
4. Rear Panel

7
(9) MIDI OUT/THRU jack:
This standard 5-pin DIN connector passes on the MIDI information that is received
at the MIDI IN jack to other MlDI-compatible devices via a MIDI cable. It also
outputs MIDI data when performing a memory dump.
Note: Inherently in MIDI there is a limit to the number of devices which can be
chained together (series connected). With more than three devices, a slight
distortion of the MIDI signal can occur (due to signal degradation) which can cause
an error in MIDI signal transmission. Should this problem arise, a MIDI box can be
used which connects directly to the MIDI device which transmits MIDI information
and has multiple connectors for the multiple devices receiving MIDI. MIDI cables
should not exceed 50 feet (15 meters) in length.
(10) POWER jack:
This jack accepts power from the 9VAC/1500mA adaptor supplied with the unit.
For more information on the power supply see the POWER REQUIREMENTS
section on page 2.