TREX Viper User manual

VIPER
USER MANUAL

CONGRATULATIONS
on your purchase of Viper, a classic vibe pedal from T-Rex Engineering.
Viper will give you a range of cool, modulated 70s sounds – all enhanced
with a T-Rex bite. You’ll recognize the vibe effect at once, and it’s easy to
dial in everything from “Little Wing” to “Bridge of Sighs”.
Turn the page to see how it works.

WATCH IT – THIS VIBE BITES!
The main controls on your Viper pedal are the DEPTH, SPEED and LEVEL
knobs, while the MODE button lets you select the basic character of your
vibe.
DEPTH controls the overall strength of the vibe effect. Start with a lower
setting for a nice, subtle effect, and turn it up to send your sound whirl-
ing around the room.
The SPEED knob lets you adjust how fast or slow your sound modulates
– no matter what the depth, or what mode you’re in.
LEVEL - lets you adjust the overall output of your Viper pedal.
Use the MODE button to switch between the two classic vibe modes
– a rotating speaker effect and a subtler vibrato sound.
Trim to customize your sound. The trim dial on the back of the unit
(accessible using a flat-head screwdriver) lets you shape the intensity
and character of your vibe sound. Experiment to get just the vibe you’re
looking for.
TECHNICAL SPECS
Input Impedance@1KHz 880 KOhm
Output Impedance@1KHZ 24 Ohm
Power supply 12V DC
Minimum Power supply Voltage 10,8V DC
Maximum Power supply Voltage 12,5V DC
Current Draw @ 12V DC 162 mA
Maximum Input signal Vp/p 1,5Vp/p
External connectors Input Jack. Output Jack, 12V DC Jack
Controls On/Off, Level, Depth, Speed, Mode
Depth 120 mm
Width 100 mm
Height 55 mm
Weight (excl. battery) 0,594 kg

ABOUT T-REX
Based in Vejle, Denmark, T-Rex Engineering makes classic and
signature effects pedals for the world’s best musicians. Our ap-
proach 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.
RoHS
REACh
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-
engineering.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, mis-
use, accident, or neglect; or if the product has been repaired or serviced
by persons not authorized by T-Rex. Read more about warranty condi-
tions at www. t-rex-engineering.com.

T-Rex Engineering ApS, Tel.: [phone], Fax: [phone]
www.t-rex-engineering.com •mail: [e-mail]
Steen Meldgaard Laursen
Managing Director
ISSUED IN VEJLE, 2007
Lars Dahl-Jørgensen
Development Director
Sebastian Jensen
Production Director