Johnson Amplification Mirage JT100, Mirage JT50 User Manual

User’s Guide

please visit Johnson Amplification on the World Wide Web at http://www.johnson-amp.com

IMPORTANT SAFETY INSTRUCTIONS

I

The symbols shown above 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.

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 CIRCUMSTANCES

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.

SAFETY INSTRUCTIONS

NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A
POWER CORD.

WARNING: THIS APPLIANCE MUST BE EARTHED.

The cores in the mains lead are coloured in accordance with the following code:

GREEN and YELLOW - Earth BLUE - Neutral BROWN - Live

As colours of the cores in the mains lead of this appliance may not correspond with
the coloured markings identifying the terminals in your plug, proceed as follows:

• The core which is coloured green and yellow must be connected to the termi­nal in the plug marked with the letter E, or with the earth symbol, or coloured
green, or green and yellow.

• The core which is coloured blue must be connected to the terminal marked N
or coloured black.

• The core which is coloured brown must be connected to the terminal marked
L or coloured red.

This equipment may require the use of a different line cord, attachment plug, or both,
depending on the available power source at installation. If the attachment plug needs
to be changed, refer servicing to qualified service personnel who should refer to the
table below. The green/yellow wire shall be connected directly to the unit's chassis.

WARNING: If the ground is defeated, certain fault conditions in the unit or in the
system to which it is connected can result in full line voltage between chassis and
earth ground. Severe injury or death can then result if the chassis and earth ground are
touched simultaneously.

WARNING

FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING:

KEEP THESE INSTRUCTIONS
HEED ALL WARNINGS
FOLLOW ALL INSTRUCTIONS
CLEAN ONLY WITH A DAMP CLOTH
DO NOT BLOCK ANY OF THE VENTILATION OPENINGS, INSTALL IN

ACCORDANCE WITH THE MANUFACTURERS INSTRUCTIONS.
DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS, HEAT

REGISTERS, STOVES; OR OTHER APPARATUS (INCLUDING AMPLIFIERS)
THAT PRODUCE HEAT.

ONLY USE ATTACHMENTS/ACCESSORIES SPECIFIED BY THE MANUFAC­TURER.

UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN
UNUSED FOR LONG PERIODS OF TIME

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:To reduce the risk of fire or electric shock, 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.

FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE RECEPTA­CLE: Replace fuse with same type and rating only.

MULTIPLE VOLTAGE INPUT: This equipment may require the use of a different line

cord, attachment plug, or both, depending on the available power source at installation.
Connect this equipment only to the power source indicated on the equipment rear panel.To
reduce the risk of fire or electric shock, refer servicing to qualified service personnel or
equivalent.

ELECTROMAGNETIC COMPATIBILITY

This unit conforms to the Product Specifications noted on the Declaration of
Conformity. Operation is subject to the following two conditions:

• this device may not cause harmful interference,and

• this device must accept any interference received, including interference that
may cause undesired operation. Operation of this unit within significant elec­tromagnetic fields should be avoided.

• use only shielded interconnecting cables.

LITHIUM BATTERY WARNING

CAUTION!

This product may contain 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

Manufacturers Name: Johnson Amplification
Manufacturers Address: 8760 S. Sandy Parkway

Sandy, Utah 84070, USA

declares that the product:

Product Name: Johnson Mirage JT50
Product Options: None

conforms to the following Product Specifications:

Safety: EN 60065 (1993)

IEC 65 (1985) with Amendments 1, & 2

EMC: EN 55013 (1990)

EN 55020 (1991)

Supplementary Information:

The product herewith complies with the requirements of
the Low Voltage Directive 72/23/EEC and the EMC
Directive 89/336/EEC as amended by Directive
93/68/EEC.

Johnson Amplification

Vice-President of Engineering
8760 S. Sandy Parkway
Sandy, Utah 84070, USA
Tel: [phone]
Fax: [phone]

Effective May 19, 1999
European Contact: Your local Johnson Amplification Sales and Service Office or
Harman Music Group

8760 S. Sandy Parkway
Sandy, Utah 84070, USA
Tel: [phone]
Fax: [phone]

II

Table of Contents

Safety information.....................................................................I

Declaration of Conformity.........................................................II

Warranty ...................................................................................III

Table of Contents ......................................................................III

Section 1 - Introduction

Congratulations.........................................................................1

Included Items..........................................................................1

Product Features.......................................................................1

Quick Start................................................................................2

A Guided Tour of the JT50/JT100..............................................3

The Top Panel...........................................................................3

The Rear Panel .........................................................................4

About the JT50/JT100 ...............................................................5

The Amp Section.......................................................................5

The Effects Section....................................................................5

Preset Selection.........................................................................5

Section 2 - Using the JT50/JT100

Getting Started...........................................................................6

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

Powering...................................................................................7

Creating or Editing a Preset......................................................7

Selecting a Preset......................................................................7

Selecting an Amp Model............................................................7

Adjusting the Amp Controls.......................................................8

Adding Effects ...........................................................................8

Modulation/Pitch Effects ...........................................................8

Noise Gate.................................................................................9

Delay.........................................................................................9

Reverb ......................................................................................10

Storing/Copying a Preset ...........................................................10

Section 3 - Other Functions

Footswitch Options....................................................................11

JT3............................................................................................11

J8..............................................................................................11

J8 Expression Pedal Calibration................................................12

Headphones..............................................................................12

Direct Output............................................................................12

Effects Loop..............................................................................13

Resetting the JT50/JT100..........................................................13

Section 4 - Appendix

Preset List.................................................................................14

Specifications............................................................................14

We at Johnson Amplification are very proud of our products and back-up each one we sell with the following

Warranty:

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

2. Johnson Amplification 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. Johnson Amplification liability under this warranty is limited to repairing or replacing defective materials that show evidence of defect, provided the product is
returned to Johnson Amplification 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 Johnson Amplification by telephone. The company shall not be liable for any consequential damage as a result of the products use
in any circuit or assembly.

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

5. Johnson Amplification reserves the right to make changes in design, or make additions to, or improvements upon this product without incurring any obligation

to install the same on products previously manufactured.

6. The consumer forfeits the benefits of this warranty if the product’s main assembly is opened and tampered with by anyone other than a certified Johnson
Amplification technician, or if the product is used with AC voltages outside of the range suggested by the manufacturer.

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

Johnson Amplification is a registered trademark of the Harman Music Group Incorporated

Note: The information contained in this manual is subject to change at any time without notification. Some information contained 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 owner’s
manual supersedes all previous versions.

III

Section-1 Introduction

Congratulations on your purchase of the Johnson Mirage JT50/JT100!

And thank you for choosing Johnson Amplification.

The Johnson Mirage JT50 and JT100 are extremely versatile and easy to use, and deliver several of the most sought after amp tones in the
world. With 12 different high quality amp models, a host of various modulation and pitch shifting effects, delay, reverb, and the easiest to use
interface at your command, the Mirage Series amps set a new standard for what a modeling amp should be. This User’s Guide will help you
in understanding how to get the most out of the JT50 and JT100. Please read it carefully and familiarize yourself with the controls on your
amp. You’re sure to have endless hours of audio satisfaction by doing so.

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

• (1) User’s Guide

• (1) Johnson Mirage JT50 or JT100 Amplifier

• (1) Johnson Amplification Warranty Card

• (1) Detachable Power Cord

Please take a moment to fill out the warranty registration card, and be sure to save all packing materials. The warranty is your safeguard in
the unlikely event that the unit requires servicing, and the packing materials should be used to return the unit.

Once again, thank you for your purchase, and we are sure you will enjoy your JT50/JT100.

Mirage JT50/JT100 Features:

• 50 Watt (JT50) 100 Watt Stereo (JT100) Power Amp

• 12” Johnson Premium Loud Speaker(s)

• Digital V-Tube Technology Modeling

• 12 Different Amp Models

• 3 Effects at Once

• 24 Bit A/D/A

• 24 Bit DSP

• Headphone/Speaker Compensated Direct Out

• Instant Module Access

• Optional JT3 and J8 Foot Controller

• Simple User Interface

1

Johnson Mirage User’s Guide Section One - Introduction

Quick Start

The JT50 and JT100 come with 21 pre-programmed user Presets. These Presets were designed to provide you with a wide array of sounds perfect for a
variety of musical applications. The straight forward controls makes Preset selection and fine tuning the effects a breeze. Programming menus have been
replaced with clearly labeled knobs making Preset creation easy.

For those of you who prefer to burn now and read later, we’ve included this Quick Start section to get you up and running.

Making Connections:

Connect your instrument to the input jack on the top panel of the Mirage JT50 or JT100.

Optional Foot Controller Connections:

Connect the optional JT3 footswitch or J8 foot controller to the designated jacks on the rear panel.

Warning: Do not connect anything but the J8 foot controller to the J8 controller jack on the rear panel of the Mirage. Doing so may

damage the device.

Apply Power:

Turn the Master Volume on the JT50/JT100 all the way down. Turn the power switch to the on position. Gradually increase the master volume control to
achieve the desired level.

Select Preset:

Use the Bank Select knob and the Preset 1, 2, and 3 buttons to audition the different presets. Once you have found presets that suit your taste, you can
alter the sounds to meet your specific needs.

Each of the effects will have specific knobs, which will vary the values of their associated parameters. The amp section has a Gain, Bass, Mid, Treble, and
Preset Level knob, as well as a 12 position knob to select your Amp Type. The Mod/Pitch Effects section has a Speed/Level and Depth/Gate knob along with
a 7 position knob to choose from the 6 types of Effects or Effects bypass. The Delay section has a Level/Time, and Feedback knob and includes a
Tap-It/Shift button to synchronize the delay time with the tempo of the music. The Reverb section has a Level/Type knob which varies the Level of reverb in
your mix. You can adjust any of these parameters to your liking, and your adjustments and creations can be stored to any of the 21 User Preset Locations.

Johnson Mirage User’s Guide Section One - Introduction

2

Mod /

Delay Reverb Bank Up

Pitch

(Hold) Tuner

Bank Down