Operation Manual

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Precautions
Location
Using the unit in the following locations can result in a malfunction.
• In direct sunlight
• Locations of extreme temperature or humidity
• Excessively dusty or dirty locations
• Locations of excessive vibration
• Close to magnetic fields
Power supply
Please connect the designated AC adapter to an AC outlet of the correct voltage. Do not connect it to
an AC outlet of voltage other than that for which your unit is intended.
Interference with other electrical devices
Radios and televisions placed nearby may experience reception interference. Operate this unit at a
suitable distance from radios and televisions.
Handling
To avoid breakage, do not apply excessive force to the switches or controls.
Care
If the exterior becomes dirty, wipe it with a clean, dry cloth. Do not use liquid cleaners such as
benzene or thinner, or cleaning compounds or flammable polishes.
Keep this manual
After reading this manual, please keep it for later reference.
Keeping foreign matter out of your equipment
Never set any container with liquid in it near this equipment. If liquid gets into the equipment, it could
cause a breakdown, fire, or electrical shock.
Be careful not to let metal objects get into the equipment. If something does slip into the equipment,
unplug the AC adapter from the wall outlet. Then contact your nearest Korg dealer or the store where
the equipment was purchased.
CE mark for European Harmonized Standards
CE mark which is attached to our company's products of AC mains operated apparatus until
December 31, 1996 means it conforms to EMC Directive (89/336/EEC) and CE mark Directive
(93/68/EEC).
And, CE mark which is attached after January 1, 1997 means it conforms to EMC Directive (89/
336/EEC), CE mark Directive (93/68/EEC) and Low Voltage Directive (73/23/EEC).
Also, CE mark which is attached to our company's products of Battery operated apparatus means
it conforms to EMC Directive (89/336/EEC) and CE mark Directive (93/68/EEC).
THE FCC REGULATION WARNING (for U.S.A.)
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interfer-
ence will not occur in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Unauthorized changes or modification to this system can void the user's authority to operate
this equipment.
IMPORTANT NOTICE TO CONSUMERS
This product has been manufactured according to strict specifications and voltage requirements
that are applicable in the country in which it is intended that this product should be used. If you
have purchased this product via the internet, through mail order, and/or via a telephone sale, you
must verify that this product is intended to be used in the country in which you reside.
WARNING: Use of this product in any country other than that for which it is intended could be
dangerous and could invalidate the manufacturer's or distributor's warranty.
Please also retain your receipt as proof of purchase otherwise your product may be disqualified
from the manufacturer's or distributor's warranty.
Setup
Turning the power on/off
When using batteries:
1. Slide the battery cover (11) located on the underside of the case toward the UNLOCK
position, and remove it. Insert two AA alkaline batteries (included), being sure to
observe the correct polarity. Close the cover and slide it to the LOCK position to
fasten it in place.
2. When using batteries, the power will turn on when a
mono cable is plugged into the INPUT jack (13). The
POWER LED (1) will light while the power is on.
The power will turn off when you remove the cable
from the INPUT jack.
Be sure to remove the cable from the INPUT jack when you are not using Ampworks
to preserve battery life.
If you connect a stereo cable, the power will not be turned on.
When the batteries run down, the POWER LED will blink. Replace the batteries as
soon as possible. Batteries that have become unusable should be removed from the
unit immediately. If dead batteries are left in the unit, they may leak or cause other
malfunctions. You should also remove the batteries if you will not be using Ampworks
for an extended period.
When using the AC adaptor:
1. Connect the separately sold AC adaptor to the DC 4.5V jack (12), and plug the AC
adaptor into an AC outlet. The POWER LED (1) will light, and the power will turn on.
Use only the specified external AC adaptor. (DC 4.5V )
Be sure to disconnect the AC adaptor from the AC outlet when you are not using
Ampworks.
Connections
1. Turn off the power of the equipment you want to connect, and lower each volume control.
2. Connect your bass to the INPUT jack (13).
3. Set the LINE/AMP select switch (14) to the appropriate position for the output destination.
If you connect the output to a mixer, recorder, or headphones, use the "LINE" setting.
If you connect the output to a bass amp, use the "AMP" position. When AMP is
selected, the cabinet response will automatically be adjusted internally to optimize the
sound produced through a bass amp.
Use the "LINE" position if you are connecting Ampworks to a bass amp that has a
tweeter and delivers good high-frequency response.
4. Connect the OUTPUT jack (15) to your mixer or bass amp.
The OUTPUT jack is stereo (TRS), so if you use a mono cable to connect it to your
bass amp etc., only the sound of the L (left) channel will be heard.
If you are listening through headphones, connect them to this jack.
If you are running into two channels of a mixer or using two amplifiers in stereo, use a
stereo to dual mono cable.
5. If you want to use an external foot switch to change user programs, manual settings or
bypass, connect the optional Korg PS-1 or PS-100 foot switch to the FOOT SW jack (16).
6. When you have finished making connections, turn on the power of the connected
equipment and adjust the volume.
Selecting programs (sounds)
Preset programs (11 programs)
1. Press the PRESET button (2) to light the LED.
2. Turn the AMP TYPE selector (4).
Preset programs with cabinets and effects appropriate for each amp type will be
selected.
User programs (PROG1, 2), Manual
1. Press the PROG/MANU button (3). Each time you press the button you will cycle
through the following three settings.
PROG1 (LED lit green): User-writable program 1
PROG2 (LED lit red): User-writable program 2
MANUAL (LED lit orange): The current settings of the knobs and selectors
Bypass
When you select Bypass, you will only hear the direct (unprocessed) sound of your bass.
When Ampworks is bypassed, the manual/program LED (PRESET or PROG/MANU) will
go dark.
•To bypass Ampworks, hold down the PROG/MANU button (3) for about two seconds.
Press the PROG/MANU button once again to cancel bypass.
Creating your sound
To create your own sound, you can either start with an existing program and modify it, or
create a sound from scratch. If you start with an existing program, select the desired
program, and then use the control knobs (6) to adjust the amp settings, or adjust the
effect and effect depth. You can also try changing the cabinet. Alternatively if you want to
create your sound from scratch, you can use the method described below. At this time
you may wish to press the PROG/MANU button (3) to select MANUAL.
1. Use the AMP TYPE selector (4) to select one of the eleven amp types.
2. Use the CABINET selector (5) to select one of the ten types of cabinet models.
The combination of amp type and cabinets will determine the basic tonal character of
the amp. Any cabinet model can be used with any amp model. Some recommended
combinations are in the "Effect parameter list." If you do not want to use effects, set
the EFF.DEPTH knob (8) to “0” (all the way to the left). ( )
Effect parameter list
AMP TYPE
VALV EA tube amp with the ULTRA LO switch turned ON. (recommended CAB: 810CLS)
VALVE2 A tube amp ideal for rock. (recommended CAB: 810CLS)
CLASSIC A tube amp whose basic character changes according to the setting of the value dial.
(recommended CAB: 118+112)
SCOOPED An amp that is typical of 80's sounds. (recommended CAB: 410MTL)
LA STUD An amp that is typical of the LA sound. (recommended CAB: 410 LA)
GOLDPNL An amp distinctive for its eye-catching gold panel and clean sound.
(recommended CAB: 410MDN)
JAZZ A combo amp favored by jazz bassists. (recommended CAB: 115JAZ)
STUDIO A tube combo ideal for the Motown sound. (recommended CAB: 115STU)
AC100 A 100W tube amp made by Vox. (recommended CAB: 215TALL)
SILVER A silver-paneled US-made amp head from 1967. (recommended CAB: 215TALL)
UKMAJOR A 200W tube amp made in the UK. (recommended CAB: 415 UK, 412 UK)
CABINET
OFF The sound of a direct line connection, not passed through a cabinet.
410 LA Four 10-inch speakers / LA sound cabinet model.
410MDN Four 10-inch speakers / modern-type cabinet model.
410MTL Four 10-inch aluminum-cone speakers / modern cabinet model.
810CLS Eight 10-inch speakers / classic-type cabinet model.
412 UK Four 12-inch speakers / UK-manufactured cabinet model.
115STU One 15-inch speaker studio combo cabinet model.
115JAZ One 15-inch speaker jazz combo cabinet model.
215TALL Two 15-inch speakers / vertical cabinet model.
415 UK Four 15-inch speakers / UK-manufactured cabinet model.
118+112 One 12-inch and one 18-inch speaker combination cabinet model.
EFFECT
PREAMP Preamp set to a clear tone.
EXCITER This effect dynamically applies an exciter according to your picking strength.
(This is especially effective when you want to give more sparkle to clean sounds.)
DIST Distortion designed for bass.
OCTAVE This generates a pitch one octave lower than the original sound, and mixes it with the
original sound to add a sense of depth and low end. This effect may not operate correct-
ly if two or more strings are played simultaneously, or when low-pitched strings are
played.
FILTER Low-pass filter type auto-wah.
(EFF.DEPTH left half: down sweep , right half: up sweep )
CHORUS Vintage stereo chorus.
FLANGE Vintage flanger.
PHASER Vintage phaser.
ROTARY Rotary speaker simulation.
DELAY Stereo delay.
REVERB Spring reverb.
Control Knobs
GAIN Adjusts amp gain. Simultaneously adjusts the compressor if the AMP TYPE is VALVE –
JAZZ, or the distortion if the AMP TYPE is STUDIO – UKMAJOR.
TREBLE Adjusts amp high-frequency range.
MIDDLE Adjusts amp mid-frequency range.
BASS Adjusts amp low-frequency range.
VOLUME Adjusts amp volume.
EFF.DEPTH Adjusts effect depth.
NR Adjusts noise reduction depth. (Hold down the TAP button and turn EFF.DEPTH)
FREQ Selects one of five center frequencies for MIDDLE (mid-range). This can be set if the
AMP TYPE is VALVE – JAZZ (hold down the TAP button and turn MIDDLE)
To restore the factory settings
You can restore PROG1 and PROG2 to the factory settings as follows.
• Hold down the WRITE button (10) and turn on the power.
Using the optional foot switch
If the optional foot switch (PS-1 or PS-100) is connected to the FOOT SW jack (16), you
can perform an operation at power-on to specify whether the foot switch will change
programs or switch bypass on/off.
If you want to use the footswitch to change programs:
just turn on the power.
• Pressing the foot switch will cycle in the order of PROG1 ➔ PROG2 ➔ MANUAL ➔
PROG1 ...
If you want to switch between bypass and a program:
turn on the power while holding down the PROG/MANU button (3).
• Pressing the foot switch will turn bypass on/off. This allows you to switch between one
program of choice and bypass.
The operating mode of the foot switch can be changed only by this special operation
at power-on.
Specifications and options
Amp models: 11
Cabinet models: 10
Effects: 11 + noise reduction
Programs: 2 user, 1 manual, 11 preset
Input: Bass guitar input (mono 1/4” jack)
Output: Line/headphone dual-purpose output (stereo 1/4” jack)
Power supply: Two AA alkaline batteries (allows approximately 10 hours of
continuous use) or separately sold AC adaptor (DC 4.5V )
Dimensions (W x D x H) :144 mm x 78 mm x 48 mm (not including protruding parts)
Weight: 222 g (not including batteries)
Included items: Owner's manual, Two AA alkaline batteries
Options: AC adaptor, foot switch (PS-1 or PS-100)
Appearance and specifications are subject to change without notice for improvement.
What is ?
(Resonant structure and Electronic circuit Modeling System) is KORG’s
proprietary sound modeling technology which precisely reproduces the complex
character and nature of both acoustic and electric instruments as well as electronic
circuits in real world environments. emulates a wide variety of sound genera-
tion characteristics including instrument bodies, speakers & cabinets, acoustic fields,
microphones, vacuum tubes, transistors, etc.
Parts and what they do
1. POWER LED 6. Control knobs 8. Effect depth knob
10. WRITE button
3. PROG/MANU button
4. AMP TYPE selector
2. PRESET/
CANCEL button
5. CABINET selector 7. EFFECT selector
9. TAP button
12. DC4.5V
11. Battery cover
16. FOOT SW jack
14. LINE/AMP select switch
15. OUTPUT jack13. INPUT jack
3. Use the control knobs (6) to adjust the gain, tone, and volume of the modeled amp.
Use the GAIN knob to adjust the gain. If the selected amp type is VALVE – JAZZ,
adjusting the gain will also adjust the compressor depth. If the selected amp type is
STUDIO – UKMAJOR, the gain will vary the distortion.
TREBLE, MIDDLE, and BASS adjust the tone. If the selected amp type is VALVE –
JAZZ, you can use the MIDDLE knob to select one of five center frequencies for the
mid-range. Hold down the TAP button (9) and turn MIDDLE to switch center
frequencies.VOLUME adjusts the overall volume.
Some tone settings may produce unwanted distortion. If this happens, lower the
VOLUME.
4. Use the EFFECT selector (7) to select the desired modeled effect and use the
EFF.DEPTH knob (8) to adjust the effect level.
For some of the following effects, you can adjust the modulation speed, delay time, or
reverb time. The parameter will be set to a value corresponding to the interval
(maximum 4 seconds) at which you press the TAP button (9) twice.
Effect: Parameter Range of parameter value *Proportion to TAP interval
CHORUS, PHASER, ROTARY : Modulation speed 80.0 [ms]...4.0 [s] x 1
FLANGE: Modulation speed 160.0 [ms]...8.0 [s] x 2
DELAY: Delay time 80.0 [ms]...1.0 [s] x 1
REVERB: Reverb time approx.0.5 [s]...8.0 [s] x 2
Others: - - - - - - - - -
*Proportion to TAP interval means that for example if FLANGE is selected, pressing
the TAP button at a 4-second interval will set the parameter value to twice that length,
or a modulation rate of eight seconds per cycle.
In addition to these settings, you can also adjust the depth of noise reduction by
holding down the TAP button (9) and turning the EFF.DEPTH knob (8).
5. If a user or preset program is selected, and you want to restore the setting of a
specific selector or knob to the setting stored in the program, turn that selector or
knob until the LED of the selected program (PRESET, PROG/MANU) goes dark. The
LED will go dark for an instant, and then light again immediately.
If you select a different program or turn off the power without saving an edited
program, your changes will be lost.
Saving a program
You can store two of your favorite settings in PROG1 and PROG2.
1. Press the WRITE button (10). (The PROG/MANU button will blink.)
2. Press the PROG/MANU button (3) to select where you wish to save your program.
Each time you press the button, the selection will alternate between PROG1 (LED
blinking green) and PROG2 (LED blinking red).
3. Press the WRITE button once again to save your settings. If you decide not to save
your settings, press the CANCEL button (2).
Data that had previously been in the writing-destination will be overwritten and
erased.
The bypass on/off setting is not remembered.
Introduction
Thank you for purchasing Ampworks bass — Korg’s portable modeling signal processor.
To ensure trouble-free enjoyment, please read this manual carefully and use the product
as described. When you have finished reading the manual, keep it for future reference.
Main features
• Ampworks bass uses Korg's " " modeling technology to deliver powerful amp,
cabinet and effect modeling sounds. Ampworks is the ideal choice for a wide range of
applications including direct-line recording, live performance and practicing through
headphones.
•You can combine eleven types of amps with ten types of cabinets to simulate numer-
ous varieties of setups, and also use eleven high-performance effects to add finishing
touches to your sound. All this power is easy to control; just use the Amp Type,
Cabinet, and Effect selectors plus the amp and effect knobs to dial-in the sound you
want.
•You can select from eleven preset programs that are optimized for each amp type, two
user programs, or use the manual mode.
5-12, Shimotakaido 1-chome, Suginami-ku, Tokyo, Japan
C 2003 KORG INC. Printed in China
Owner's Manual