User manual
ToneBug
Sensewah
CONGRATULATIONS
on your purchase of Sensewah, part of our Tonebug series of eect
pedals that combine gorgeous T-Rex tone, cool retro design, and
aordable pricing.
Sensewah is a great-sounding wah-wah pedal that creates your
“wah” eect for you automatically – without your having to operate
the pedal while you play. It also oers the rare “yoy” eect, which is
puts a weird twist on the traditional wah-wah sound.
Since Sensewah is triggered by your playing instead of foot-operation, it’s important to set it up right before you start playing.
Turn the page to nd out how.
READY TO GET FUNKED UP?
HOW IT WORKS
Using your Sensewah
1. Insert a 9V alkaline battery or connect to an electrical outlet using
a T-Rex Fuel Tank power supply (not included).
2. Plug your guitar into the INPUT jack, and run a lead from the
OUTPUT jack into your amp.
3. Use the SENSE knob to set how much “wah” you want, and the
RANGE knob to set the frequency width of your “wah”.
4. The WAH WAH/YOY YOY switch lets you go from a traditional wah wah to the freaky-sounding yoy-yoy eect. Try it out!
Automated wah-wah
Traditional wah-wah pedals work by ltering out all but a narrow
band of frequencies. As you press the pedal further down with your
foot, you move that band up to higher frequencies.
With automated wah-wah pedals like your Sensewah, the moving
of the frequency band is controlled not by your foot operating the
pedal, but triggered automatically when you strike the strings.
What’s a yoy-yoy?
The yoy-yoy is similar to the wah-wah eect, except that it moves a
double band of frequencies up and down the frequency range. The
upper band is very high, resulting in the strange “whistling” sound
that characterizes the eect..
TECHNICAL SPECIFICATIONS:
Input Impedance @ 1KHz Higher than 1 M Ohm
Output Impedance @ 1KHz Lower than 1 K Ohm
Power supply 9V DC
Minimum Power supply Voltage 8,5V DC
Maximum Power supply Voltage 12,5V DC
Current Draw @ 9V DC 75 mA
Maximum input signal Vp/p 2,5 Vp/p
Battery Type 9V battery 6F22 Alkaline
Battery Life 0,5 to 1 Hours
External connectors Input Jack. Output Jack, 9V DC Jack (center
pin negative)
Controls On/O, Sense, WHA/You You, Range
Depth 120 mm
Width 78 mm
Height 60 mm
Weight (excl. battery) 0,404 Kg
T-REX WARRANTY CONDITIONS
T-Rex offers a 2-year warranty on all our products. In the unlikely event of a malfunction,
please contact our technical support at info@t-rex-effects.com before sending us the product
for repair. When the product has been sent to us at sender’s cost, we will repair or replace
your product and send it back to you - free of charge and usually within 3 weeks (shipping
not included). The product needs to be accompanied by a copy of your receipt, serial number, return address, phone number, e-mail address and a brief explanation of the problem.
Please note that we cannot replace a product until we have received it here in Denmark.
The warranty is lost 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 T-Rex.
Read more about warranty conditions at www.t-rex-effects.com.
ABOUT T-REX
Based in Vejle, Denmark, T-Rex Engineering makes classic and signature effects pedals for the
world’s best musicians. Our approach blends hi-tech innovation with old-world craftsmanship – always in the service of killer tone.
EU REGULATIONS • ENVIRONMENT PROTECTION
T-Rex accepts and follows the regulations and directives issued by the EU. We find these
environment protecting regulations very good, and we are happy to follow them.
ISSUED IN VEJLE 2011
Steen Meldgaard Laursen
Managing Director
Lars Dahl-Jørgensen
Development Director
T-Rex Engineering ApS
www.t-rex-eects.com
Sebastian Jensen
Production Director
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