Trace Acoustic TA30 - Front Panel Controls: Effects, Level, and Output

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Notch filter
As with all other TRACE ACOUSTIC products the TA30 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 feedback caused by the resonance of the body of the
instrument.
A NOTCH filter removes a narrow band of frequencies from the response of the amplifier.
If this band of frequencies is narrow enough it will not be missed from the wide band
frequency response of the unit. This band or NOTCH, is then made tuneable so that it can
be adjusted to the resonant frequency of the body of the instrument, thus reducing the
amplification at that particular frequency and eliminating the feedback.
If feedback becomes a problem while playing then switch the NOTCH ‘IN’ and adjust the
NOTCH control for best position to eliminate the feedback. If feedback is still a problem
then the only solution is either move further away from the amplifier or reduce the overall
level of volume you are using.
Reverb
The spring REVERB built into the TA30 has a single LEVEL control to adjust the amount
of reverb added to the signal.
Turning the LEVEL control up adds reverb to the signal and providing the GAIN control
has been set correctly there will be plenty of reverb available on this control.
If reverb is not required then turn this control fully anticlockwise to minimum.
Level Control
The LEVEL control is for setting the required output volume level from the amplifier.
The Shape Switch
The SHAPE facility is actually a pre determined EQ that can be switched in to circuit to
add an instant ‘sparkle’ to the sound. This shaped sound is appropriate to both rhythm
and fingerpicking playing styles.
When switched ‘In’ the SHAPE adds a top boost, a mid cut and a bass boost
simultaneously to provide an instant full and rich character to the guitars tone.
Line Out
This socket provides a line level output signal from the TA30 and is situated prior to the
LEVEL control. This can be used as a DI to a mixing desk, as a recording output or for
connection to further amplification.