Aclam Guitars Vox UL 730 User Manual & Safety Instructions page 8

BYPASS SWITCH: Engages the unit allowing the
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signal to flow through the Unknown Pleasures Ltd.
Edition circuit. It also lights up the LED above it.
VOL: Controls the overall volume of the Dr. Robert
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Unknown Pleasures Ltd. Edition when you're not using
the Disorder! section.
GAIN: This control is placed in the same position of
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the circuit as the original UL 730's volume control.
Since none of the Vox UL series had a master
®
volume control the user had to turn it all the way up
to bring the amp into saturation, and believe us, this
thing is loud. To solve that we put the Vol control at
the end of the FET section so now, the volume control
on the original amp turns into a gain knob on the Dr.
Robert Unknown Pleasures Ltd. Edition
At lower settings the Gain knob will produce a clean
tone, but as you approach the 12'o-clock mark the FET
section will start entering the saturation region.
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Have in mind that due to Dr. Robert Unknown
Pleasures Ltd. Edition great dynamics, different
types of guitars and pickups will affect the clean
range of the Gain knob.
7 MIDS: This is the most critical knob to tailor your
sound. Unlike most equalizer circuits (which get placed
after or before the volume control) Vox® separated
the "Mids" control from the rest of the tone stack in the
UL 730. In this preamp the signal gets amplified first,
followed by the "Mids" control before the volume pot.
After this, Vox® placed a special gain stage coupled
with the Bass and Treble controls. Thus, you can
control the midrange without interacting with the rest
of the eq, as traditional tone stacks do.
By turning it counterclockwise, it will subtract a great
amount of mid-range, creating a really interesting
scooped sound.
Turning it clockwise will bring mid frequencies and the
overall gain builds up hitting harder the EL84 tubes,
creating saturation.
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DISORDER! MIDS
VOL
DISORDER!
Just like the real amp does, Dr. Robert Unknown Pleasures Ltd. Edition "Mids" control has the same behavior thanks to
the FET section specially tuned to mimic the power amp saturation on the UL 730.
So, keep in mind, the "Mids" knob will have a great effect on the overall saturation of the unit.
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GAIN VOL
BYPASS
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