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ACTIVE / HI-LEVEL
The second input is the ACTIVE / HI-LEVEL input. This input should be used with instruments that
have inbuilt electronics with a large signal output as these could overload the input stage of the
PIEZO / LO-LEVEL input.
INPUT GAIN CONTROL - SIGNAL LEVEL INDICATION
It is very important to set the INPUT GAIN control correctly in order to provide the amplifier with
the optimum level of signal. This control is not a volume control for the channel, it is to enable you
to set the correct input level to the channel. If this control is set too low you may experience
excessive background noise and inadequate effects level.
This control is set in conjunction with the SIGNAL LEVEL LED. To set this control correctly use the
following procedure:-
1.
Plug the instrument into the appropriate input depending on your type of instrument
or pick up.
2.
Set the graphic to flat ( all sliders in the center ), the LO-TRIM and HI-TRIM their center
positions and the MASTER LEVEL to zero.
3.
Play the instrument in the way you wish to use it ( i.e. strumming, finger picking etc).
4.
Increase the INPUT GAIN control until the SIGNAL LEVEL LED lights up GREEN for most
of the time while playing and changes to RED on peaks or heavy playing.
5.
If the LED cannot be made to register RED while using the ACTIVE / HI-LEVEL input then
transfer your input to the PIEZO / LO-LEVEL input and re-adjust the INPUT GAIN as from step 3.
IMPORTANT! When correctly set, the GREEN LED should light for most of the time while playing
and change to RED only on peaks.
N.B. As the SIGNAL LEVEL LED monitors the signal from after the GRAPHIC and the PULL SHAPE
facility it may be necessary to re-adjust the INPUT GAIN control once these have been altered.
This control also has a PULL switch built into it to turn on the digital effects for this channel
( PULL REV ).
LO-TRIM / HI-TRIM
The HI and LO trim controls have been provided to 'Trim' the sound from the instrument / pick up
combination to achieve a flat response prior to any tailoring of the sound with the graphic or pull
shape facilities.
These controls may also be used as EQ controls to adjust the top and bottom end of the instrument
sound.
Do not boost the LO-TRIM excessively as this will have the effect of increasing the chances of low
frequency feedback.
CHANNEL 2 ( and CHANNEL 4 on the TA200RS )
Channel 2, the LOW Z or LOW IMPEDANCE channel has two inputs, one being a jack and the
other a female XLR socket. These are both low impedance, balanced inputs. A mono jack plug may
be used in the jack input for an unbalanced signal connection if required.
These inputs are for use with pickups that offer a low impedance, balanced output. The jack input
may also be used for a second ACTIVE instrument if required.
The XLR input is suitable for use with a microphone for amplifying acoustic guitar, other acoustic
instruments or vocals. Phantom powering ( 48V ) is available with the switch next to the XLR. The
phantom power is ON when the switch is IN. Only use this if you have a capacitor microphone
that requires external phantom powering.
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