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Introduction
The ACOUSTIC CUBE and POWER CUBE are compact 180mm cube, 1 x 5" speaker, 35 watt output amplifiers
for the acoustic musician.
They are professional units with the ACOUSTIC CUBE having built in digital reverb, effects send and return,
balanced D.I. and a notch filter. Both units have the facility to be mounted on a microphone stand for personal
ear level monitoring.
FRONT PANEL
INPUT
ACOUSTIC CUBE
Input
The ACOUSTIC CUBE has a single jack input for connection to the instrument. This is a very high impedance
input in order to perfectly match the output from a Piezo pick up that has no built in preamplifier of its own.
This input should be sensitive enough for all current acoustic pick up systems. It also has sufficient headroom
to cope with the output from those pick up/preamp systems built into many modern instruments.
Gain Control
The GAIN control is to allow the user to set the optimum input level to achieve maximum quality and minimum
noise. This should be adjusted so that while playing the LEVEL indicating LED stays illuminated GREEN for most
of the time and only changes to RED on loud playing peaks. If this LED will not stay illuminated while you are
playing then it is because your instrument has a very low output signal level, in this case set the GAIN control to
its maximum position for best results.
Lo-Trim/Hi-Trim Tone Controls
The LO-TRIM and HI-TRIM tone controls are boost and cut controls with their FLAT setting being at the centre
position of the control. Turning the control in a clockwise direction from its centre position increases the bass
or treble whilst turning it in an anticlockwise direction will decrease the bass or treble.
Notch Filter
As with all other TRACE ACOUSTIC products the ACOUSTIC CUBE includes a NOTCH filter that can be switched
IN or OUT. This is an anti-feedback device to allow amplification of an acoustic instrument without trouble from
GAIN
LO-TRIM
LEVEL
HI-TRIM
NOTCH
OUT
PLATE
IN
ROOM
REVERB
LEVEL
SHAPE
LONG
OUT
SHORT
IN
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