TREX TuneMaster User manual

The TUNEMASTER is designed to be very easy to use. When
you want to tune, hit the footswitch and the signal is muted.
The small on/o LED tells you that the tuner is now active.
Play any note and the TUNEMASTER will display the name
of the note, and indicate whether the note is at (left side
arrows) or sharp (right side arrows). The dot in the upper-
left corner of the display indicates that the note is raised
one semitone (G#, D#, A#, etc.). Once the note is in tune, the
whole display will light up in green. To go back to playing,
hit the footswitch and the on/o LED will go o.
on your purchase of the TUNEMASTER, a premium guitar/
bass tuner from T-Rex Eects.
Your TUNEMASTER is a true bypass chromatic tuner, which
allows you to tune your instrument silently, with the option
of using it as a buer/line driver. The big note display, clear
“in-tune” indication and super simple operation makes tun-
ing your instrument a breeze. It also features specially de-
signed circuitry that cuts tuning noise down to an absolute
minimum.
Congratulations TUNEMASTER in use

gain at minimum to 10 dB´s of signal boost at maximum.
Not only does this buer your signal to avoid treble-loss,
but it also gives you the ability to boost the overall signal
level, compensating for long cables and/or signal losses
from running a lot of pedals. You can also use it as a pick-up
booster, if you need a little more output from your instru-
ment.
Try setting the “beef” control at minimum and listen to the
sound when using either bypass conguration. Depending
on your setup, you may hear a clearer, more open sound
when using the buered bypass. Then adjust the “beef”
knob to taste.
The TUNEMASTER can be used in true bypass or in buered
bypass mode. The toggle switch between the in/out jacks
should be set to the right for true bypass and to the left for
buered bypass.
The true bypass routes the input signal directly to the output.
In essence, when you are not tuning, it is as if the TUNEMAS-
TER isn´t even there.
The buered bypass lets you use the TUNEMASTER as a line
driver with an adjustable output level, called the “beef” con-
trol. In this conguration, the “beef” control goes from unity
Bypass mode

Input Impedance@1KHz Higher than 1M Ohm
Output Impedance@1KHZ Lower than 1K Ohm
Power supply Voltage 9V DC Minimum 8V DC / Maximum 12,5V DC
Current Draw @ 9V DC 68 mA
Maximum Input signal Vp/p 3Vp/p
Battery Type / Battery Life 9V battery 6F22 / 2 hours
External connectors Input Jack, Output Jack, 9V DC jack
Controls Bypass on/off switch, Beef on/off, Beef adjust
Pedal size incl. knobs (W x H x D) 60 x 50 x 117 mm / 2,4 x 2 x 4,6 inch
Weight excl. battery & packaging 0,225 kg / 7,9 oz
Detection range 80Hz to 4000Hz
T-REX WARRANTY CONDITIONS
T-Rex oers a 2-year warrenty on all our products. In the unlikely event of a
malfunction, please contact our technical support at service@t-rex-eects.com
before sending us the product for repair. Read more about warrenty conditions
at www.t-rex-eects.com/service
ABOUT T-REX
Based in Vejle, Denmark, T-Rex Eects makes classic and signature eect 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
nd these environment protecting regulations very good, and are happy to fol-
low them.
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