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PURIST

The T-Rex PURIST is a small low noise, high quality outboard bass preamplifier, that really enhances your 
tone. Just plug your bass into the PURIST and then go from the PURIST to your amplifier/or to a board. 
The PURIST has a clip that goes in your belt. Easy.

The PURIST is recommended for:

all passive basses

basses with active pickups and

instruments that have active electronics, that can be bypassed

It also works great with all upright bass pickups.

The TREBLE knob is boost only. Flat response is with the control at complete counter clockwise position.

The BASS knob is boost only. Flat response is with the control at complete counter clockwise position.

The VOLUME knob controls the volume.

The BYPASS button activates or bypasses the PURIST. With the button released, the PURIST is bypassed.

If you are using a small amplifier, excessive signal boosting might overload the preamp stage of the 
amplifier, causing distortion or clipping. In this case, use the VOLUME control on the PURIST to reduce 
the gain input to the amplifier.

USER’S MANUAL

PURIST

Congratulations on the purchase of your new T-Rex pedal

T-Rex grants a 2-year warranty against defective parts or workmanship. 
In the event of a defect, please contact the nearest T-Rex dealer.

Summary of Contents for BETAVIBE

Page 1: ...gnal is heard In Maximum position only the processed signal is heard The VOLUME knob sets the overall volume At maximum level the signal is boosted approx 3dB The DEPTH knob controls the depth of the modulation In maximum position the sound is bend to an extreme almost pitch shift like effect The SPEED knob controls the modulation speed The MODE button controls the works of the SLOW FAST TAP TEMPO...

Page 2: ... the BetaVibe acts as a typical floor pedal Knobs and footswitches can be used In down position you can only via MIDI control following parameters 1 TAP TEMPO CTL No 22 2 SPEED EXPRESSION PEDAL CTL No 01 In down position the SPEED knob and the SLOW FAST TAP TEMPO footswitch is deactivated The modulation speed is only controllable via MIDI 3 ON OFF BYPASS CTL No 23 Controls MIX VOLUME DEPTH and SPE...

Page 3: ...the signal to an extra amplifier and get a stereo like sound when playing two amplifiers make a retro sound You send the delayed signal using the OUTPUT plug to a stereo simulator that sends the stereo signal to two amplifiers You connect a third amplifier using the DIRECT plug Retro sound The ECHO knob determines the amount of processed signal in the signal mix In minimum position only the direct...

Page 4: ... s called triplets That ll keep the echo of the guitar a lot clearer It is easier to hear this SUBDIVISION function using a drum machine keeping the beat 1 2 3 4 The BROWN button is a High Cut filter that alters the tone of the repeats The result is a warmer smoother delay sound reminiscent of the tone of a 60 s era tape echo The MIDI socket allows you to control following TAP TEMPO CTL No 20 ON O...

Page 5: ...he TONE knob affects the top end edge of your signal without compromising sonic quality allowing you to dial in the perfect tonal flavour for you taste Controls GAIN A GAIN B LEVEL and TONE Connections INPUT Jack 6 3 mm OUTPUT Jack 6 3 mm DC Jack 2 mm pin Power supply 9 12 Volt DC or battery 9 Volt Alkaline When using a Power Supply you don t have to put in a battery Effect usage 20 mA Weight 500 ...

Page 6: ...Jack 2 mm pin Power supply 9 12 Volt DC or battery 9 Volt Alkaline When using a Power Supply you don t have to put in a battery Effect usage 20 mA Weight 500 gram packed in box Open the battery cover on the back using a flat tipped screwdriver in the slot Remember to position the battery correctly USER S MANUAL ALBERTA Congratulations on the purchase of your new T Rex pedal T Rex grants a 2 year w...

Page 7: ...illation speed Controls MODE DEPTH VOLUME and SPEED Connections INPUT Jack 6 3 mm OUTPUT Jack 6 3 mm DC Jack 2 mm pin Center is minus ground Power supply 9 12 Volt DC or battery 9 Volt Alkaline When using a Power Supply you don t have to put in a battery Effect usage 20 mA Weight 499 gram packed in box Open the battery cover on the back using a flat tipped screwdriver in the slot Remember to posit...

Page 8: ...you taste Controls BOOST GAIN LEVEL and TONE Connections INPUT Jack 6 3 mm OUTPUT Jack 6 3 mm DC Jack 2 mm pin Power supply 9 12 Volt DC or battery 9 Volt Alkaline When using a Power Supply you don t have to put in a battery Effect usage 20 mA Weight 500 gram packed in box Open the battery cover on the back using a flat tipped screwdriver in the slot Remember to position the battery correctly USER...

Page 9: ...at complete counter clockwise position The BASS knob is boost only Flat response is with the control at complete counter clockwise position The VOLUME knob controls the volume The BYPASS button activates or bypasses the PURIST With the button released the PURIST is bypassed If you are using a small amplifier excessive signal boosting might overload the preamp stage of the amplifier causing distort...

Page 10: ...dB at 40 KHz Treble Control 13 dB at 5 KHz To change the battery Remove the screws on the bottom by the INPUT OUTPUT sockets Remove the front plate by pushing sliding it backwards Remove the battery and replace it with a new one Preferable Alkaline 9 Volt battery T Rex Engineering ApS Tel 45 75 72 71 81 Fax 45 75 72 71 98 www t rex engineering com mail info t rex engineering com Issued in Vejle Oc...

Page 11: ...al is boosted approx 3dB Controls COMP ATTACK and LEVEL Connections INPUT Jack 6 3 mm OUTPUT Jack 6 3 mm DC Jack 2 mm pin Power supply 9 12 Volt DC or battery 9 Volt Alkaline When using a Power Supply you don t have to put in a battery Effect usage 20 mA Weight 376 gram exclusive battery 455 gram packed in box Open the battery cover on the back using a flat tipped screwdriver in the slot Remember ...

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