EBS UNICHORUS - STUDIO EDITION
USERS MANUAL
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USERS MANUAL
EBS UNICHORUS - STUDIO EDITION
THANK YOU FOR PURCHASING
THE EBS UNICHORUS - STUDIO EDITION PEDAL!
With the EBS UniChorus you can choose between Chorus, Flange
and Pitch Modulation effects. The pedal is built with high quality
components and uses analog processing circuitry, which gives you a
warm and fatter sounding chorus/flange effect.
We hope you’ll enjoy using your EB S UniChorus pedal.
/The EB S Team
Visit EBSSWEDEN.COM
for info on all EBS effects,
amps and accessories.
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EBS UNICHORUS - STUDIO EDITION
THE CONTROLS
DEPTH
RATE
DEPT H sets the amount, or the modulation
depth, of the chorus effec t. Note that when
this control is in minimum position, the Rate
control has no effect.
RATE controls the speed of the chorus effect.
Use this control in combination with the D epth
control to fine-tune your personal sound.
FLANGER - This mode gives a typical ”flanged”
sound with special focus on the midrange
frequencies. Suitable for creating classical
sounds with any instrument plugged in.
PITCH MODULATION (P.M.) - This position gives the
most apparent chorus effect with relatively
long initial delay time. This position is
useful for creating sounds with huge, wide
chorus timbres, especially when the pedal is
connec ted to a stereo system.
CHORUS - This is the standard chorus mode,
useful for any instrument and type of sound.
LED INDICATOR Indicates dynamically the speed
of the chorus, controlled by the Rate knob.
FOOT SWITCH Switches the pedal on or off.
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POWER OPTIONS
EBS UNICHORUS - STUDIO EDITION
DC POWER ADAPTOR For environmental reasons,
we recommend the use of a DC Power
Supply, such as the EBS A D-9+. The EBS
UniChorus Studio Edition handles 9-12
V DC, and require a 2.1 mm pin center
negative type of connec tor.
BATTERY This pedal can run on battery (not
included). To place a bat tery in the pedal
follow these steps.
1) Remove the four screws holding
the bottom plate.
2) Carefully remove the bottom plate.
3) Place a 9V alkaline t ype; 6LR61 in
the battery holder.
4) Gently place back the bot tom plate.
Attach the four mounting screws using
moderate tension.
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GND PH.
SIGNAL
POWE
EBS UNICHORUS - STUDIO EDITION
ADVANCED CONTROL OPTIONS (inside the box)
EFFECT MIX LEVEL
The EBS UniChorus pedal is equipped with
an effect mix tr immer, FX MIX, for fur ther
fine-tuning your sound.
This function makes it possible adjust the
amount of the pure chorus signal to mix in
with the normal ”bypassed ” sound. The
range can be set from 0% to 100% mix,
where 0% is off. The factor y setting for this
trimmer is set to 50%.
The trimmer is located on the printed
circuit board, and is easily accessible by
removing the bot tom plate. When doing
any adjustments, please use a plastic
screwdriver, and turn this trimmer gently.
If you are not 100% sure o n how to do this, p lease cons ult your near est serv ice
center. Excessiv e force may result in d amage to the unit, and t he warrant y in that
case w ill be void.
!
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EBS UNICHORUS - STUDIO EDITION
SAMPLE SOUND SETTINGS
The following examples below show a few of the many sonic
possibilities of the EB S UniChorus.
STANDARD CHORUS
This is the standard chorus sound set ting,
useful for any instrument and setup. Use
fairly high setting for Depth and adjust the
Rate for best per sonal result.
FLANGER MODE
This is a ver y useful setting for spicing up the
mid-range chorus character of your sound.
Use a fairly high set ting for Depth and
set the Rate control to match your sound
preference.
PITCH MODULATION
This is the most dramatic chor us effect with
the longest chorus times in the pedal, and
the stereo operation in this mode gives an
incredible depth to your sound, worth trying
out. Use moderate setting for Depth and set
the Rate accordingly.
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EBS UNICHORUS - STUDIO EDITION
TROUBLE SHOOTING GUIDE
Please consult the following checkpoints, before consulting one of
the authorized EBS service centers.
Checkpoint
1) Does the cable(s) work
properly?
2) Are the 1/4” plugs properly
connec ted all the way in?
3) Are the Instrument cable
attached to the Right
(input) jack, and the Amp
cable connected to the Left
(output) jack?
4) Does the pedal have a
battery, and is the battery
OK?
5) Does the indicator LED
light when pressing the foot
switch alternatively?
6) Does the instrument work?
7) Does the amplifier work
and is the volume turned
up?
8) If you are using a DC
adapter, Are you using an
EBS A D-9?
Action if ans wered NO
- Replace cable(s).
- Push the 1/4” plugs all
- Reconnect input and
- Put a new battery in
- Replace/put in battery, or
- Check the instrument.
- Turn up volume or check
- Check the voltage and
USERS MANUAL
the way in.
output jacks.
the pedal.
use a DC power supply.
the amp at your nearest
EBS service center.
polarity of the adapter
you are using.
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USERS MANUAL
EBS UNICHORUS - STUDIO EDITION
TECHNICAL SPECIFICATIONS EBS UNICHORUS Studio Edition
Nominal Input Level - 8 dBv
Input Impedance 700 kohms
Bandwidth +0/-3 dB 20 - 20 kHz
Delay Bandwidth +0/-3 dB 200 - 8 kHz
Delay Level Mix min/max -oo - +3 dB.
Center Delay Time Flange 3 ms
Chorus 5.5 ms
Pitch Modulation 10 ms
Modulation Depth min/max +/- 50% of
nominal delay Time
LFO Range min/max 0.15 - 7.5 Hz
Dimensions Width 2.8” (70 mm)
Height 4.5” (115 mm)
Depth 1.4” (35 mm)
Weight 400g (0.88 lb.)
Power Requirements 9 - 12 V DC Regulated, 35 mA max.
Protected against accidental over voltage up to 18 V.
Specifications are subject to change without notice.
If you did not find the answer in this manual, please contact
EBS at support@ebssweden.com
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