Olsson The Spell Booster User manual

USER’S MANUAL 1.0
O
lsson

Important Safety Instructions
1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with dry cloth.
7 Do not install near heat sources such as radiators, heat registers, stoves, or
other apparatus (including ampliers) that produce heat.
8 Refer all servicing to qualied service personnel.
Servicing is required when the apparatus has been damaged in any way, such as
power-supply cord or plug is damaged, liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped.
Warning!
• To reduce the risk of re or electrical shock, do not expose this equipment
to dripping or splashing and ensure that no objects lled with liquids, such
as vases, are placed on the equipment.
• Do not install in a conned space.
Service
• All service must be performed by qualied personnel.
Caution:
You are cautioned that any change or modications not expressly approved in
this manual could void your authority to operate this equipment.
When replacing the battery follow the instructions on battery handling in this
manual carefully.

Congratulations
on your purchase of ”The Spell Booster”, a transparent clean boost
pedal with an special designed midrange control. As a clean boost, it
can enhance other pedals, such as overdrive and distortion pedals.
With it’s mid range and high cut controls you can rene the sound from
a harsh pedal or you can get scooped midrange sounds from a non
scooped amp. You can also increase the mid to get a mid scooped amp
work much better with your overdrive or distortion pedal. With The
Spell Booster you will have a lot of possibilities to enhance your sound.
45
6
7
8
1
2
3
1 - Output jack
2 - LED indicator
3 - Midrange control
4 - Power in (9V DC)
5 - Boost control
6 - High Cut switch
7 - Input jack
8 - Eect On/O (true bypass)

The controls
Your The Spell Booster has three controls:
The Boost knob adjusts the amount of boost from 0-22dB with the mid control in
the FLAT position.
The Mid knob controls the amount of mid range ( ±12dB).
The High Cut switch has three positions 2-FLAT-1. When set in at position it
will not aect the sound at all. In position 1 you will have a slight cut of the high
frequencies and in position 2 the cut will be more noticeable.
Note
At higher boost levels or a combination of boost an high mid levels, The Spell
itself will add some overdrive tones to the output signal.
+12dB
-12dB

Connecting
Input jack - 1/4 inch mono jack input. If you run the pedal on battery, we recom-
mend removing the input jack to preserve battery power when you don’t play.
Output jack - 1/4 inch mono jack output for connecting to another pedal or
directly into an amp or mixer.
Power in - use a 9 V DC power supply with the following symbol:
Installing or changing battery
Unscrew the four screws on the back of the pedal and detach the back-plate.
Demount the old battery and attach the new making sure the polarity is correct.
Then remount the back-plate. To save battery life, remove the input jack when
you don’t play.
Batteries must never be heated, taken apart or thrown into re or
water. Only rechargeable batteries can be recharged. Remove the
battery when the pedal is not being used for a longer period of time.
Dispose batteries according to local laws and regulations.
!
-
+

Specications
Input impedance @1kHz 1MΩ
Output impedance @1kHz 1kΩ
Power supply 9V DC
Max current @9V 10mA
Battery type 9V 6F22
Controls Boost (0-22dB), Mid (±12dB)and Hi
Cut
External connectors Input jack, Output jack and DC jack
Pedal size incl. knobs (W x H x D) 69mm x 46mm x 112mm /
2.72” x 1.81” x 4.41”
Weight excl. battery and
packaging
225g / 7.93 lbs
Due to continuous development, these specications are subject to change without notice.
EU regulations
Olsson Amps follows the regulations and directives issued by EU.

Warranty conditions
Olsson Amps oers a 3-year warranty on all our pedal products. In the unlikely
event of a malfunction, please contact our technical support at
[e-mail] before sending us the product for repair. After send-
ing us the product at senders cost, we will repair the product and return it back
to you as soon as possible. The return shipment is free of charge.
The product needs to be accompanied by a copy of your receipt, return address,
phone number, e-mail address and a brief explanation of the problem.
The warranty is not valid if the product has been damaged by alteration, misuse,
accident, or neglect; or if the product has been repaired or serviced by persons
not authorized by Olsson Amps.

Pedal chain order 1
When used after another pedal, the Spell will increase the volume proportionally
with the boost and/or mid control. In this scenario you can also use The Spell to
change the tone produced by the pedal in front of it. Use the Hi Cut to make this
pedal less harsh and the Mid control to adjust its mid range response.
Pedal chain order 2
When used in front of an overdrive/distortion/fuzz or amp The Spell will push it
to produce more distortion when increasing the boost level. Every amp or dirt
pedal reacts dierent when pushed (some even don’t like it all). If the sound
gets muddy with more boost, add some mid, and if it gets harsh use the Hi Cut
switch to tame it. The volume increase will depend on how much the other pedal
compresses the signal. Our The Wizard Overdrive can be pushed really hard and
works excellent for this purpose.
Pedal chain order 3
With The Spell last on your pedal board you can use it as a buer with the
possibility to adjust the important mid range depending on the amp you have at
a specic time.
This is very useful when playing with dierent back lines from time to time. If
you got a mid scooped amp, just increase the mid and your pedals will work as
intended, or vice versa.
Pedal chain order 4
With The Spell in the beginning on your pedal board you can use it to compen-
sate for dierent kind of pickups. Use the Mid control to set the tone, and the
boost to compensate for level loss. You will be amazed of what you can do with
your tone when used in this way.

1. Unity gain
With this setting you will have unity
gain and a clean tone.
2. Just boost
Keep the Mid and High Cut in the
at positions and increase the boost
control to desired level.
E X A M P L E

3. Mid boost
Increase the Mid control and adjust
the boost control to desired level.
4. Mid scoop
Decrease the Mid control and adjust
the boost control to desired level.
Note that you must increase the boost
control a bit to get unity gain.
E X A M P L E

6. Fix a harsh pedal with
not enough mid
Place The Spell after the harsh pedal.
Increase the mid control and set High
Cut to position 2. This will add some mid
and reduce the harsh sound.
E X A M P L E
5. Fix a harsh pedal with
to much mid
PlaceThe Spell after the harsh pedal.
Decrease the mid control and set High
Cut to position 2. This will reduce the
mid a bit and reduce the harsh sound.

Olsson Amps Sweden 2016 www.olssonamps.com
About Olsson Amps
Based in Stockholm, Sweden, Olsson Amps makes guitar tube ampliers and
eect pedals with highest quality and killer tone.
All products are hand made in Sweden.
O
lsson