DigiTech STUDIO 400 User Manual

Studio 400

4 IN-4 OUT

Professional Studio

Effects Processor

A Harman International Company

S-DISC

™

PROCESSING

Owner's Manual

1:Rvb 2:GtRv 3:Dly 4:Cho

IMPORTANT!

FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING:

WATER AND MOISTURE: Appliance should not be used near water (e.g. near a

bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming
pool, etc). Care should be taken so that objects do not fall and liquids are not spilled
into the enclosure through openings.

POWER SOURCES: The appliance should be connected to a power supply only of
the type described in the operating instructions or as marked on the appliance.

GROUNDING OR POLARIZATION: Precautions should be taken so that the ground­ing or polarization means of an appliance is not defeated.

POWER CORD PROTECTION: Power supply cords should be routed so that they are
not likely to be walked on or pinched by items placed upon or against them, paying
particular attention to cords at plugs, convenience receptacles, and the point where
they exit from the appliance.

SERVICING: The user should not attempt to service the appliance beyond that
described in the operating instructions. All other servicing should be referred to quali­fied service personnel.

FUSING: If your unit is equipped with a fuse receptacle, replace with only same type
fuse. Refer to replacement text on the unit for correct fuse type.

U.K. MAINS PLUG WARNING

A moulded mains plug that has been cut off from the cord is unsafe. Discard the
mains plug at a suitable disposal facility. NEVER UNDER ANY CIRCUM-

STANCES SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO
A 13 AMP POWER SOCKET. Do not use the mains plug without the fuse cover

in place. Replacement fuse covers can be obtained from your local retailer.
Replacement fuses are 13 amps and MUST be ASTA approved to BS1362.

The symbols shown at left are internationally accepted symbols that warn of
potential hazards with electrical products. The lightning flash with arrowpoint in
an equilateral triangle means that there are dangerous voltages present within
the unit. The exclamation point in an equilateral triangle indicates that it is nec­essary for the user to refer to the owner’s manual.

These symbols warn that there are no user serviceable parts inside the unit. Do
not open the unit. Do not attempt to service the unit yourself. Refer all servicing
to qualified personnel. Opening the chassis for any reason will void the manu­facturer’s warranty. Do not get the unit wet. If liquid is spilled on the unit, shut it
off immediately and take it to a dealer for service. Disconnect the unit during
storms to prevent damage.

CAUTION

ATTENTION: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC

SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

RISK OF ELECTRIC SHOCK

DO NOT OPEN

LITHIUM BATTERY WARNING

CAUTION!

This product contains a lithium battery. There is danger of explosion if the bat­tery is incorrectly replaced. Replace only with an Eveready CR 2032 or equiva­lent. Make sure the battery is installed with the correct polarity. Discard used
batteries according to manufacturer’s instructions.

ADVARSEL!

Lithiumbatteri - Eksplosjonsfare. Ved utskifting benyttes kun batteri som anbefalt
av apparatfabrikanten. Brukt batteri returneres apparatleverandøren.

ADVARSEL!

Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske
med batteri av samme fabrikat og type. Levér det brugte batteri tilbage til
leverandøren.

VAROITUS!

Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan
laitevalmistajan suosittelemaan tyyppin. Hävitä käytetty paristo valmistajan ohjei­den mukaisesti.

VARNING!

Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekviva­lent typ som rekommenderas av apparattillverkaren. Kassera använt batteri
enligt fabrikantens instruktion.

DECLARATION OF CONFORMITY

Manufacturer’s Name: Harman Music Group Incorporated
Manufacturer’s Address: 8760 S. Sandy Parkway

Sandy, Utah 84070, USA

declares that the product:

Product Name: Studio 400
Product Options: All

conform to the following Product Specifications:

Safety: EN 60065 (1993)

IEC 65 (1985) with Amendments 1, 2 & 3

EMC: EN 55013 (1990)

EN 55020 (1991)

Supplementary Information:

The product herewith complies with the requirements of the Low Voltage Directive

73/23/EEC and EMC Directive 89/336/EEC as amended by Directive 93/68/EEC.

.

Digitech Elctronics
President of Digitech
8760 S. Sandy Parkway
Sandy, Utah 84070, USA

Effective October 1, 1996
European Contact: Your Local DigiTech Sales and Service Office or
International Sales Office

3 Overlook Drive #4
Amherst, New Hampshire 03031, USA
Tel [phone]
Fax [phone]

1

Section 1 - Setting Up

Studio 400 Owner's Manual

Table Of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SECTION 1 - SETTING UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Unpacking the Studio 400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Suppling Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Rear Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Making Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

A Word About Bypass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

SECTION 2 - BASIC FUNCTIONS OF THE STUDIO 400

Getting Around the Operating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Program Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

FX Edit Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Selecting FX Types and Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Modifying FX Module Parameters Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Input/Output Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Using Modifiers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Linking a Parameter to a Modifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Setting up an LFO or Dynamic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Comparing Programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Storing Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

SECTION 3 - EFFECTS AND PARAMETERS

About Modules and the Effect Charts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

About the Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Reverbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Chorus and Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Phasers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Tremolos, Auto Panners and Rotary Speaker Simluator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Detuners and Pitch Shifters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

EQs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Noise Gate and Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Multi Effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

SECTION 4-IN LEVELS AND UTILITIES

Auto/Manual Input Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Adjusting the Screen Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

MIDI Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Program Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

System Exclusive device channel / MIDI Merge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Program Dump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

System Exclusive Bulk Dump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

System Dump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Program Autoload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Factory Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Harmony Tuning Reference. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

SECTION 5- APPENDIX

MIDI Implementation Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Effects and Defaults List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Effect Configuration Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Factory Program List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Studio 400 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Harmony Interval Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

User Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2

Section 1 - Setting Up

Studio 400 Owner's Manual

INTRODUCTION

Congratulations, and thank you for your purchase of the DigiTech Studio 400.
The Studio 400 gives you four completely independent inputs and outputs driven by proven Dual S-

DISC™ technology. The results are obvious: sparkling clean sound and endless combinations of effects
and signal path routings. Features include:

• Balanced 1/4” and XLR Inputs and Outputs

• Dual S-Discs

• Optional Digital I/O Interface

• 8 Effects at once

• 24 bit data path

• 191(Factory) 100(User) Programs

• Effects include: Reverbs, Choruses, Flangers, Auto-Panners, Tremolo,
Intelligent Pitch Shifting, Delays (Analog and Digital),
Rotary Speaker Simulator, Compressor, and Noise Gate.

WARRANTY

1. The warranty registration card must be mailed within ten days after purchase date to validate the war­ranty.

2. DigiTech warrants this product, when used solely within the U.S., to be free from defects in materials
and workmanship under normal use and service.

3. DigiTech liability under this warranty is limited to repairing or replacing defective materials that show
evidence of defect, provided the product is returned to DigiTech WITH RETURN AUTHORIZATION,
where all parts and labor will be covered up to a period of one year. A Return Authorization number
may be obtained from DigiTech by telephone. The company shall not be liable for any consequential
damage as a result of the product’s use in any circuit or assembly.

4. Proof-of-purchase is considered to be the burden of the consumer.

5. DigiTech reserves the right to make changes in design, and make additions or improvements to this
product without incurring any obligation to install the same on products previously manufactured.

6. The foregoing is in lieu of all other warranties, expressed or implied, and DigiTech neither assumes nor
authorizes any person to assume any obligation or liability in connection with the sale of this product. In
no event shall DigiTech or its dealers be liable for special or consequential damages, or from any delay
in the performance of this warranty due to causes beyond their control.

DigiTech™, Studio 400™, and S-DISC™ are registered trademarks of DOD Electronics Corporation.

IMPORTANT! The information contained in this manual is subject to change at any time without notification.

Some information in this manual may also be inaccurate due to undocumented changes in the
product or operating system since this version of the manual was completed. The information
contained in this version of the manual supersedes all previous versions.

3

Section 1 - Setting Up

Studio 400 Owner's Manual

SECTION 1 - SETTING UP

UNPACKING THE STUDIO 400

Your Studio 400 was carefully assembled and packaged at the factory. Before you proceed any further, make
sure the following items are included:

• (1) Owner's manual

• (1) DigiTech Studio 400 Studio Effects Processor

• (1) Power cord

• (4) Rack screws

• (1) DigiTech warranty card

Please save all packaging materials. They were designed to protect the unit from damage during shipping.
In the unlikely event that the unit requires service, use only the factory supplied carton to return the unit.

SUPPLYING POWER

The Studio 400, like any piece of computer hardware, is sensitive to voltage drops, spikes and surges.
Interference such as lightning or power "brownouts" can seriously, and in extreme cases, permanently
damage the circuitry inside the unit. Always be sure to connect your Studio 400 to well grounded AC out­lets. You may wish to use a Spike/Surge Suppressor or AC LIne Conditioner to further protect your invest­ment.

FRONT PANEL CONTROLS

The layout of the Studio 400's front panel is simple and straightforward. Figure 1-1 shows the various parts
of the Studio 400.

Figure 1-1 Front Panel

1) DISPLAY - The Studio 400's large custom display is where you get most of the information you need to

move around the operating system. The display has several important sections that you need to under­stand when you use the Studio 400. They are:

1a) Program Number Indicator - These three large digits in the upper left corner of the display indi-

cate which Program is currently selected.

1b) Factory / User Indicators - Directly below the Program number are the Factory and User Program

indicators. These indicators also include a CHANGED icon to tell you whether the Program has been
modified but not stored in memory. Factory Programs can be modified but must be stored in a User
Program location since Factory Programs cannot be overwritten.

1c) Page Indicators - The bottom left corner of the display is occupied by the Page indicators. They

display the number of Pages available and the Page which is currently selected. These icons only
appear in the FX Edit and Utilities modes.

*(24)5x8PixelCharacters*

IN 4

IN 3

IN 2

IN 1

%kHz
mSec

FACTORY PRG MODIFIED

MIDI

CHANGED

LEVEL 4

LEVEL 3

LEVEL 2

LEVEL 1

OUT 4

OUT 3

OUT 2

OUT 1

CLIP
CLIP
CLIP
CLIP

USER PRG MODIFIED

FX EDIT PAGE

12345678910

188

••8

%kHz
mSec

CHANGED

%kHz
mSec

CHANGED

%kHz
mSec

CHANGED

1

UTILITY PAGE

MODIFIERS

••8 ••8 ••8

2 3 4

S-DISC

™

PROCESSING

1c 1b 1a 1d 1e 2

4

579 11

10

8631g1f

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Section 1 - Setting Up

Studio 400 Owner's Manual

1d) Information Line - This row of 24 characters (top line of the display) is the Information line. It

gives more detailed information about specific functions and items, and contains things like
Program names, Parameter names, and Utility or auxiliary information.

1e) Parameter Data Sections - There are four Parameter Data sections in the display. They are imme-

diately below the Information line, and correspond with the <1> through <4> buttons on the front
panel. Each section displays the current value of the indicated Parameter. Each section also has
an arrow that shows which Parameter in the display is selected.

A CC indicator in each group tells whether the indicated Parameter is set up to be continuously
controlled ( "continuous control" includes internal LFOs, dynamic modifiers, and MIDI continuous
controller data). Directly below each section is a CHANGED indicator that lights to indicate that the
Parameter has been changed but not stored.

1f) Input Level / Clip Meters - The bottom center of the display is occupied by the Input Level and

Clip meters. These meters show the input level of each channel, and use a peak detector action to
display the highest levels at the inputs. The Clip indicator at the end of each meter shows whether
the input signal is being clipped at the analog input section (pre-digital).

1g) Effect Routing Matrix - The Effect Routing Matrix shows the signal flow of the currently selected

Program. This matrix includes boxes that represent each effect module along with lines that indi­cate how those effects are connected to inputs, outputs and each other. If an effect module is
bypassed, a line appears through that module's box in the Matrix.

When in FX Edit mode, the box that represents the currently selected effect module will flash.
Likewise the Modifier module flashes the MODIFIER indicator, the Input Mode module flashes the
Input Routing indicators and the Output Mode module flashes the Output Routing indicators.

2) PROGRAM BUTTON - Selects Program mode for Program selection. The Data Wheel is used to select

a program for loading. The Program button can also be used to toggle between the User or Factory
Program Banks. The active Program Bank is shown in the display by the Factory / User indicators (see
item 1b).

This button is also used to access the Compare mode. See pg. 14 for more information.

3) FX EDIT BUTTON - Selects FX Edit mode for Program modification. If you continue to press this button,

you will scroll through each individual effect module, the Modifiers module and the Input/Output mod­ules.

4) PARAMETER BUTTONS - The Parameter buttons <1> through <4> are used to select the Parameter

or Utility item you want to edit. In Program mode, they can also be used to enter the FX Edit mode's 1st
through 4th module. To access modules 5 through 8, simply press and hold parameter buttons
<1> through <4> accordingly.

5) PREV PAGE BUTTON - Scrolls to the previous Page in the Parameter list. Note that the Page indica-

tors change to reflect the currently selected Page number in the Parameter list.

6) STORE BUTTON - The <STORE> button is used to store user Programs in memory for later recall.

7) NEXT PAGE BUTTON - Scrolls to the next Page in the Parameter list. Note that the Page indicators

change to reflect the currently selected Page number in the Parameter list.

8) UTILITY - Selects the Utility mode where global functions such as Screen Contrast, MIDI Channel,

Program Maps, SysEx Channel, SysEx Dumps, Program AutoLoad and Reset can be accessed.

9) IN LEVELS - This button is used to access both the automatic and manual input leveling controls. For more on

setting input levels, see pg. 30.

5

Section 1 - Setting Up

Studio 400 Owner's Manual

10) BYPASS - Bypasses all the effects in the Studio 400.

11) DATA WHEEL - The Data Wheel lets you scroll through Programs and change Parameters values.

REAR PANEL CONNECTIONS

The layout of the Studio 400's simple and straightforward rear panel is illustrated in Figure 1-2.

Figure 1-2 Rear Panel

1) AUDIO INPUTS - These four XLR or 1/4” balanced inputs can be used for several different combina-

tions of input configurations. The Input Configuration module of each Program defines how each Input
is used. See pg. 11 for more info.

2) AUDIO OUTPUTS - The Studio 400's XLR and 1/4” balanced outputs can also be configured in many
different ways. These settings are found in the Output Configuration module of each Program. See pg.
11 for more info.

3) OUTPUT LEVEL SWITCH - Selects whether the signal is nominally output at line level (-10 dB) or at
professional level (+4).

WARNING: Make sure the Studio 400's audio levels are all down before changing the setting of this switch. Also,

be sure you know which setting is best for your particular equipment setup, as setting this switch to +4
can overload the inputs of some line-level equipment. DigiTech is not responsible for any damage to
speakers or components due to misuse of this switch.

4) MIDI IN - MIDI data is received at this port. When MIDI data is received, the MIDI indicator in the dis­play flashes on and off.

5) MIDI OUT / THRU - Merges MIDI data generated by the Studio 400 with MIDI data received at the

input. Please see pg. 32 for more information.

6) FOOTSWITCH - This jack allows connection of the DigiTech FS300 3-button footswitch or any shorting­type footswitch. If using the DigiTech FS300, button 1 increments through Programs, button 2 decre­ments through Programs, and button 3 bypasses the Studio 400's effects. When using any other single
momentary switch device, the switch acts as a Bypass.

NOTE: The footswitch must be plugged in on power up in order for the Studio 400 to detect which type

of switch is being used.

7) POWER INPUT - Connect power supply cord to AC Line input jack on the rear of the Studio 400.

8) DIGTIAL I/O - Optional Upgrade. See pg. 8 for more info.

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6

Section 1 - Setting Up

Studio 400 Owner's Manual

MAKING CONNECTIONS

Because of its flexibility, the Studio 400 can be connected in several different ways to meet the requirements
of specific applications. The following diagrams offer some ways the Studio 400 can be connected.

IN LINE: The Studio 400 can be connected between a line level instrument output (such as keyboards,
recording decks, etc.) and a line level input (such as mixing console inputs). This method is called the "in­line" method because the Studio 400 is connected directly in the audio path of the source. When you use
the in-line method, the master wet-to-dry effects mix is controlled from the Studio 400 operating system.
Cable routings for this method looks like Figure 1-3:

Figure 1-3 In-Line Connection

EFFECTS LOOP: This application uses the Studio 400 in an effects loop of a mixing console. In this appli-

cation, the source is routed directly to the mixer channel input(s). From there, the Studio 400 gets its
source audio from the console's auxiliary send, and mix levels are controlled directly from the console.
Figure 1-4 shows a common recording studio or live sound reinforcement setup for effects processing
with a console.

Figure 1-4 Effects Loop Configuration

To Mixer Stereo Aux Return (L)
To Mixer Stereo Aux Return (R)

From Mixer Aux Send 1

From Mixer Aux Send 2

To Amplifier or Mixer
To Amplifier or Mixer

From Instrument or Direct Source

Figure 1-5 shows an example of a typical stereo effect setup as seen from the console, and shows how to
handle both true stereo and mono input signals using two auxiliary sends.

This is the method of choice in many recording applications because of the impressive realism and depth
of texture that it produces. While it is slightly more complicated to set up and requires twice as many aux­iliary sends, stereo effects (particularly reverbs) improve dramatically in imaging and spaciousness.

Figure 1-5 Setting up a mixer's aux sends for true stereo operation

REMEMBER: When you use this method to process stereo sources such as keyboards, the auxiliary

sends on your console should be set up exactly opposite one another, as shown on
channels 1 and 2 of Figure 1-5. Note that the left channel is sent to Aux 1, while the
right channel is sent to Aux 2. When using mono sources like vocals and bass guitar,
send equal levels from both Aux 1 and Aux 2 to maintain proper soundfield balance of
the effects, as shown on channels 5 and 8.

PARALLEL EFFECTS: Another application for the Studio 400 allows you to independently process four
discrete signals simultaneously. This method also utilizes the effects loops of your console, and since
each effect has a mono input, the auxiliary sends can be set up in a much more straightforward way.
Figure 1-6 on the following page, shows how to connect the Studio 400 for this application.

Pan

Mute

-10

0

+5

+10

-20

-30

-∞

-5

L / R

Mute
L / R

Mute
L / R

Mute
L / R

-5

-4

-3

-2

-1

0

+1

+2

+3
+4

+5

Pan

-5

-4

-3

-2

-1

0

+1

+2

+3
+4

+5

Pan

-5

-4

-3

-2

-1

0

+1

+2

+3

+4

+5

Pan

-5

-4

-3

-2

-1

0

+1

+2

+3
+4

+5

Pan

-5

-4

-3

-2

-1

0

+1

+2

+3
+4

+5

Pan

-5

-4

-3

-2

-1

0

+1

+2

+3
+4

+5

Pan

-5

-4

-3

-2

-1

0

+1

+2

+3
+4

+5

Pan

-5

-4

-3

-2

-1

0

+1

+2

+3
+4

+5

1234

-10

0

+5

+10

-20

-30

-∞

-5

-10

0

+5

+10

-20

-30

-∞

-5

-10

0

+5

+10

-20

-30

-∞

-5

Mute
L / R

5

-10

0

+5

+10

-20

-30

-∞

-5

Mute
L / R

6

-10

0

+5

+10

-20

-30

-∞

-5

Mute
L / R

7

-10

0

+5

+10

-20

-30

-∞

-5

Aux 1

0

2

46

8

10

Aux 2

0

2

46

8

10

Aux 1

0

2

46

8

10

Aux 2

0

2

46

8

10

Aux 1

0

2

46

8

10

Aux 2

0

2

46

8

10

Aux 1

0

2

46

8

10

Aux 2

0

2

46

8

10

Aux 1

0

2

46

8

10

Aux 2

0

2

46

8

10

Aux 1

0

2

46

8

10

Aux 2

0

2

46

8

10

Aux 1

0

2

46

8

10

Aux 2

0

2

46

8

10

Aux 1

0

2

46

8

10

Aux 2

0

2

46

8

10

Mute
L / R

8

-10

0

+5

+10

-20

-30

-∞

-5

Aux Send 1

Aux Send 2

Pan Control

7

Section 1 - Setting Up

Studio 400 Owner's Manual

8

Section 1 - Setting Up

Studio 400 Owner's Manual

Figure 1-6 Quad Mono Input / Dual Stereo Output Configuration

Using this method, you could use channel 1 for a long vocal reverb, channel 2 for a short gated snare
drum reverb, channel 3 for lead guitar delay, and channel 4 to thicken keyboard instruments with a
detuner. This method also offers the flexibility of running different channels in-line or in an effects loop.

REMEMBER: Outputs can be configured any way you like, so don't let any of this input / output stuff

scare you.

A WORD ABOUT BYPASS

Because of its flexibility, the Studio 400 can be connected in several different ways to meet the require­ments of many specific applications. However, the definition of Bypass may change, depending on the
application. The Studio 400 features Application Specific Bypassing so that the Studio 400 functions
appropriately in nearly every application. When Bypassed, the Studio 400 simply switches the Effects in
that Program OFF, but the Dry Levels defined in that Program remain untouched. If the effects are all wet
(no Dry Level), the Bypass function effectively Mutes the Studio 400. If the Dry Level is up, then the Studio
400 passes the original signals through without processing. A line through the modules in a Effect
Configuration Matrix indicate that the module is Bypassed.

DIGITAL INPUT / OUTPUT (OPTIONAL UPGRADE)

The optional Digital Input and Output interface makes the Studio 400 an absolute necessity for any Digital
recording or mixing application. Digital I/O provides the means for communicating with other Digital
devices. Digital I/O is ideal to use with the Studio 400 because all DSP effects will go to the receiving
device without having to have Digital to Analog conversion.The optional Studio 400 Digital Input / Output
features:

• AES/EBU and S/PDIF formats

• XLR and RCA in and output jacks

• Selectable Sampling rates

• Automatic synchronization to external sample rates

Contact your DigiTech dealer for more information.

To Mixer Stereo Aux Return 2 (L)
To Mixer Stereo Aux Return 2 (R)

To Mixer Stereo Aux Return 1 (L)
To Mixer Stereo Aux Return 1 (R)

From Mixer Aux Send 3

From Mixer Aux Send 4

From Mixer Aux Send 1

From Mixer Aux Send 2

9

Section 2 - Basic Function of the Studio 400

Studio 400 Owner's Manual

SECTION 2 - BASIC FUNCTIONS OF THE STUDIO 400

GETTING AROUND THE OPERATING SYSTEM

The menu structure of the Studio 400 has been specially designed to be easy to use. The display shows
the information you need, but to make things even easier for you, illumination in the front panel buttons
offers additional operating information.

The front panel buttons give you information in one of two ways:

1 - If the button is not lit, its function is INACTIVE. Pressing an unlit button causes it to light brightly

and its function becomes the active item in the display. If the unlit button doesn’t light after you
press it, the button is unavailable.

2 - If the button is lit, its function is ACTIVE. Pressing an active button (other than the <PROGRAM>

button) reselects the already active item in the display.

PROGRAM MODE - Program mode allows you to scroll through the Factory and User Programs using the
Data Wheel. When the Studio 400 is turned on, it sets itself to Program mode. Program mode is active
when the <PROGRAM> button is lit and a Program name is present on the Information line (top line) of the
display. You can toggle between Factory or User Programs by pressing and holding the <PROGRAM>
button when it is lit. The FACTORY PRG or USER PRG indicator will light in the display according to which
bank is selected. In this mode, all other buttons on the front panel are dim or off.

To select a Program, do the following:

• Make sure Program mode is selected. If the <PROGRAM> button is dim, press <PROGRAM> once
to return to Program mode.

• Use the <PROGRAM> button to select the Program bank (Factory or User). Each successive press
of the <PROGRAM> button toggles between the Factory and User bank of Programs.

• Using the Data wheel, scroll to the Program you want to hear.

The selected program is immediately autoloaded. The AutoLoad feature can be turned off, allowing you to
view a program before actually loading it. See pg. 34 for further details.

FX EDIT MODE - This mode allows you to edit: 1. FX Modules, 2. the Modifier Module, 3. the Input Mode
Module, and 4. the Output Mode Module of your Programs. Use the <FX Edit> button to enter the FX Edit
mode and then to select the next module for editing. A helpful hint: If you look at the Effect Routing Matrix
while you press the FX Edit button, the currently selected module will flash. The Studio 400 uses Pages to
navigate within an effect. A Page is a group of up to four effect Parameters that appear on the screen at
one time. To move through the Pages in a Program, use the <NEXT PAGE> and <PREV PAGE> buttons.
Note that as you scroll through the Pages, the Page indicator in the lower left corner of the display
changes to show the currently displayed Page.

SELECTING FX TYPES AND DEFAULTS

The Studio 400 has made custom digital signal processing easier than ever by giving you access to a com­plete library of professionally developed effects settings. Page one of every FX Module allows you to:

1) Bypass that effect module

2) Select an effect Type (Chorus, Reverb, Delay, etc.)

3) Select a Default for the selected effect Type

The Default parameter allows you to select one of several effect settings stored in the Studio 400's library.
For example, there are 9 Dual Delay defaults to choose from. All Factory Programs use these Default set
tings. So, if you like the Delay that is being used in Factory Program 11, simply locate page one of the FX
Module, then use the <4> button and the Data Wheel to recall the default (which happens to be A2­Pingpong2) in your new program. This eliminates the need to copy all those parameters from one location

10

to the other. It also gives you several starting places so you can get as close as possible to the custom
sound you are trying to create. Once you edit one of the parameters in the FX Module, the default name is
replaced with the word "Custom". This means that a default setting has been customized by the user or
changed by real-time Modifiers for that program.

NOTE: There are two Banks available for the defaults, Bank A and Bank B. Effects stored in bank A con-

tain the dry signal for typical in-line applications. Effects in bank B do not contain the dry signal,
and boosts the effect level so it can be used with a mixing console's effect loops . EQ, Panner,
Noise Gate, and Tremolo do not contain Dry level controls and therefore do not have a bank B
available.

MODIFYING FX MODULE PARAMETERS EXAMPLE

Let's modify an effect Parameter. Factory Program 150 uses a quad delay with a delay time of 700 mil­liseconds. The tap percentages are set to DlyA = 25%, Dly B =50%, Dly C =75%, and Dly D =100%,
which gives you evenly spaced delay taps. But suppose they're too slow to fit the tempo of a piece of
music you're composing. With most effects units, you'd have to recalculate each delay tap individually,
but the Studio 400 makes it simple.

Here's how to change the tempo of the delays:

• If you're not already there, switch to Program mode and use the Data wheel to scroll to Factory
Program 150. The display reads:

• Press <FX EDIT>. Note the current module being edited is flashing in the Effect Routing Matrix. The
display reads:

• Press <NEXT PAGE> twice. Position 2 of the Information line shows that the current delay time set­ting is 700 milliseconds. Remember that the total delay time shown in the display is divided among
the delay taps in the Module. The display reads:

• Use the Data Wheel to decrease the delay time. Both the Store button illuminates and the
CHANGED icons turn on indicating that the Program has been modified.

• Press the <Program> button to return to Program Mode, or continue in Edit Mode by continuing to
press the <FX EDIT> button.

USER PRG

SecSecmSec

Delay Time FdBck TapIt

IN 4

IN 3

IN 2

IN 1

FACTORY PRG

- CHANGED

- CHANGED

MIDI

LEVEL 4

LEVEL 3

LEVEL 2

LEVEL 1

OUT 4

OUT 3

OUT 2

OUT 1

CLIP

FX EDIT PAGE

12 5678910

On

CHANGED CHANGED

UTILITY PAGE

DIGITAL CLIP

700 35 __

MODIFIERS

1 234

CLIP
CLIP
CLIP

C

C

C

C

C

C

C

C

S-DISC

™

PROCESSING

150

%kHz
m Sec

%kHz %kHz

m

%kHz
m

34

USER PRG

SecSecmSec

Fx:Quad Delay PingPong

IN 4

IN 3

IN 2

IN 1

FACTORY PRG

- CHANGED

- CHANGED

MIDI

LEVEL 4

LEVEL 3

LEVEL 2

LEVEL 1

OUT 4

OUT 3

OUT 2

OUT 1

CLIP

FX EDIT PAGE

12 5678910

On

CHANGED CHANGED

UTILITY PAGE

DIGITAL CLIP

FUL 888 b 5

MODIFIERS

1 2 3 4

CLIP
CLIP
CLIP

C

C

C

C

C

C

C

C

S-DISC

™

PROCESSING

150

%kHz
m Sec

%kHz %kHz

m

%kHz
m

34

USER PRG

SecSecSec

Quad Delay

IN 4

IN 3

IN 2

IN 1

FACTORY PRG

- CHANGED

- CHANGED

LEVEL 4

LEVEL 3

LEVEL 2

LEVEL 1

OUT 4

OUT 3

OUT 2

OUT 1

FX EDIT PAGE

1 2 3 4

On Off 2

MODIFIERS

1 34

S-DISC

™

PROCESSING

%kHz
m

%kHz
m

%kHz
m

USER PRG

SecSecmSec

Fx:Dual Delay PingPong2

IN 4

IN 3

IN 2

IN 1

FACTORY PRG

- CHANGED

- CHANGED

MIDI

LEVEL 4

LEVEL 3

LEVEL 2

LEVEL 1

OUT 4

OUT 3

OUT 2

OUT 1

CLIP

FX EDIT PAGE

12 5678910

On

CHANGED CHANGED CHANGED

UTILITY PAGE

DIGITAL CLIPDIGITAL CLIP

HLF 888 A 2

MODIFIERS

1 2 3 4

CLIP
CLIP
CLIP

C

C

C

C

C

C

C

C

S-DISC

™

PROCESSING

11

%kHz
m Sec

%kHz %kHz

m

%kHz
m

34

Section 2 - Basic Function of the Studio 400

Studio 400 Owner's Manual

11

NOTE: Make sure you store any changes you want to save before exiting

the edit mode. See pg. 14 for more information.

EFFECT & INPUT / OUTPUT CONFIGURATIONS

The Studio 400's ability to accommodate a number of different input and output routing configurations
makes it an extremely useful and flexible tool for many different applications.

Programs 101 through 123 in the Factory Program bank represent all the FX module configurations avail­able in the Studio 400. For diagrams of these 23 Effect Configurations, see pg. 38. When you find one that
you like, you can save it in a new User Program location for later use. Remember that choosing an Effect
Configuration does not define the input / output routing schemes or the actual effects used within the con­figuration. This means that even one configuration can be used thousands of different ways.

To select a new Effect Configuration, do the following:

• Scroll through Factory Programs 101 - 123 until you find a configuration you want to use. The display
looks something like this:

Once you have selected an Effect Configuration, you can select the input/output configuration you will be
using.

• Press the FX Edit button 6 times. The input section of the Effect Routing Matrix begins flashing and
the information line reads:

Input Mode: Quad Mono

• Use the Data Wheel to scroll through the 9 available input configurations.

• Press the FX Edit button one more time. The output section of the Effect Routing Matrix begins flash­ing and the Display looks something like this:

• Use parameter buttons <1> and <4>, and the Data Wheel to scroll through the available output
configurations, and to set the output level for each program.

NOTE: Make sure you store any changes you want to make before exiting the edit mode. See pg.14

for more information.

USING MODIFIERS

Modifiers are unique tools that can be used to dramatically alter your sound based on information from signal
amplitude, the settings of a Low Frequency Oscillator (LFO) or MIDI Continuous Controller information.

Every Program in the Studio 400 has a set of Modifiers. Up to 8 Modifier links can be assigned to control
parameters. There are three types of Modifiers that can be linked to a parameter: MIDI CCs, LFOs, and
Dynamic (signal level dependent).

USER PRG

SecSecmSec

Cfg: 1 (H,H,H,H)

IN 4

IN 3

IN 2

IN 1

FACTORY PRG

- CHANGED

- CHANGED

MIDI

CHANGED

LEVEL 4

LEVEL 3

LEVEL 2

LEVEL 1

OUT 4

OUT 3

OUT 2

OUT 1

CLIP

FX EDIT PAGE

1 2 5 6 7 8 9 1010

Off

CHANGED CHANGED CHANGED

UTILITY PAGE

DIGITAL CLIPDIGITAL CLIP

888 888 888

MODIFIERS

1 234

CLIP
CLIP
CLIP

C

C

C

C

C

C

C

C

S-DISC

™

PROCESSING

%kHz
m Sec

%kHz %kHz

m

%kHz
m

3 4

Section 2 - Basic Function of the Studio 400

Studio 400 Owner's Manual

USER PRG

SecmSec

OutMode:Quad Mono Lvl

FACTORY PRG

- CHANGED

- CHANGED

MIDI

LEVEL 4

LEVEL 3

LEVEL 2

LEVEL 1

FX EDIT PAGE

1 678910

6

CHANGED

UTILITY PAGE

100%%%%

1 3 4

C

C

C

C

C

C

S-DISC

™

PROCESSING

101

%kHz
m Sec

%kHz %%

m

%kHz
m

IN 4

IN 3

IN 2

IN 1

OUT 4

OUT 3

OUT 2

OUT 1

CLIP

CHANGED CHANGED

DIGITAL CLIPDIGITAL CLIP MODIFIERS

CLIP
CLIP
CLIP

12

MIDI CCs - When you use MIDI CCs, the Studio 400 responds to CC numbers 0-127 and CHP (channel

pressure or aftertouch). This means that you could assign your keyboard's modulation or pitch bend
wheel (or any other MIDI CC device) to control effect Parameters.

For example, you can have a synth's modulation wheel (usually MIDI CC#1) control the in level of a reverb
and chorus in one program while the delay feedback is controlled in another.

LFOs - When you use LFOs, Parameter values can be controlled automatically between a defined mini­mum and maximum setting at a rate set by the user. The Studio 400 has 2 user definable LFOs in each
program that can be assigned to any Parameter.

For example, you can create an auto panner without using an auto panner module. Simply link an effect's
output pan parameter to the LFO modifier and the LFO will move that parameter back and forth. This mod­ifier can be a very useful weapon in the ongoing battle of new sound creation.There are two LFOs avai
lable in each program that can use unique speeds and waveforms.

Dynamic Modifiers - When you use Dynamic Modifiers, the Parameter values are controlled in relation to
the dynamics of the input signal. The possibilities are nearly endless, and they cannot be duplicated using
any other method.

For example, you could link the Dynamic Modifier of a Program to control a chorus level. It doesn't sound
like much on paper, but imagine the expressiveness of this type of effect on a vocal part. As the dynamics
of the music increase, the chorus becomes less apparent. Ease up on the vocal a little and the chorus
increases. ALL IN REAL TIME!

NOTE: Linking a Modifier to a Parameter causes the Parameter to change as if you were changing it using

the Data Wheel. The only difference is that the <Store> button and PROGRAM CHANGED indica­tors do not light. Therefore, the Default name may display 'Custom' if a Parameter is consistently
being changed by a Modifier. Storing the Program will store these new Parameter values.

LINKING A PARAMETER TO A MODIFIER

To link a Parameter to a Modifier, do the following:

• Press the <FX EDIT> button, and the display will look something like this:

The modifiers icon in the bottom right corner of the display begins flashing.

• Use the <NEXT PAGE> and <PREV PAGE> keys to scroll through Pages 1-8 to select which of the 8
Modifier Links you want to use. For example, Modifier Link #1.

• Use the Data wheel to scroll to the Parameter you want assigned to Modifier link #1. As you scroll,
the MIN and MAX values for each Parameter show in the display.

NOTE: The MUTE and THRU effect types do not have any Parameters to connect to, so they will not

appear in the parameter list.

• Press <3> to select the Minimum Value Parameter.

• Use the Data wheel to select the minimum Parameter value you want when the controller is in the
minimum position. These values vary because different Parameters have different value units, such
as milliseconds or percent.

USER PRG

SecSecmSec

Mod-1: Select parameter

IN 4

IN 3

IN 2

IN 1

FACTORY PRG

- CHANGED

- CHANGED

MIDI

LEVEL 4

LEVEL 3

LEVEL 2

LEVEL 1

OUT 4

OUT 3

OUT 2

OUT 1

CLIP

FX EDIT PAGE

12 5678910

Off

CHANGED CHANGED CHANGED

UTILITY PAGE

DIGITAL CLIPDIGITAL CLIP

888 888 888

MODIFIERS

1 234

CLIP
CLIP
CLIP

C

C

C

C

C

C

C

C

S-DISC

™

PROCESSING

11

%kHz
m Sec

%kHz %kHz

m

%kHz
m

34

Section 2 - Basic Function of the Studio 400

Studio 400 Owner's Manual