B-band A1, Инструкция по установке и руководство пользователя

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8.6.
Test the system before putting on the strings. To do this, plug
into an amplifier and then tap lightly on the top of the guitar (and
microphone, if used) to make sure that you can hear the transducer(s)
when you tap. Another good test is to shake the guitar when plugged
into amplifier. If anything is loose or if the transducer’s leads are
touching something you will hear it.
A2 users, remember that when using a combination of two input
sources the system requires a stereo “Y” cable and a two-channel
amplifier or a multi- channel mixer. If a standard (mono) cable is
used the signal from the number 1 input channel will only be heard
(usually the transducer).
For an example adjustment, if the sound is has too much bass the
UST’s gain trim can be turned down, or counter-clockwise at the
mini pot.
To do the adjustment after installation, the strings, preamp and
preamp cover will have to be removed. Before any adjustment is done,
careful evaluation of the sound should be closely considered. If closer
attention is needed to evaluate the sound while doing the adjustment,
it could be possible, if careful, to restring while the preamp, still con-
nected to transducers and battery, hangs outside the soundhole. This
way a connection to an amplifier or mixer can be made so sound can
be heard while adjusting.
10. A4.2 AND A6 UST AND AST INPUT GAIN
TRIM CONTROL ADJUSTMENTS
10.1.
For the A4.2, there are two input gain trim pots at the faceplate
that can be accessed with a small screwdriver through the two holes.
There is one trim pot each for the UST and at the AST the trim is for
the combination of UST / AST with cross over point (as described
at sections 1.3 and 10.2 in the A4.2 description). Both trim pots are
set at the full setting from the factory. The UST input gain trim pot
should be adjusted so the output level is equal in level to the AST /
UST. Before adjusting the input gain make sure that both gain controls
are at the full setting.
Adjustment of the UST input gain will change the balance of the
AST / UST crossover blend at the AST side of the mix.
10.2.
For the A6, there are two input gain trim pots at the faceplate
that can be accessed with a small screwdriver through the two holes.
There is one trim pot each for the UST and AST. Both trim pots are
set at the full setting from the factory. The UST input gain trim pot
should be adjusted so the output level is equal in level to the AST.
Before adjusting the input gain make sure that both gain controls
are at the full setting.
Final adjustment for both A4.2 and A6 gain trim should be done
2-3 days after the installation because the UST output lowers slightly
upon the first days under string pressure.
1/4”
(STEREO)
( M O N O )
1/4”
8.7.
Install the strings and test the system. Now play, keep it real
and enjoy!
DO NOT USE B-BAND A-SERIES PREAMPS WITH
PHANTOM POWER!
9. A2.2 UST GAIN TRIM ADJUSTMENT
9.1.
The adjustment of UST input gain trim can be made with a small
screwdriver at the mini pot inside the preamp. This should be turned
fully clockwise during the installation. With this control the balance
of sound can be made between the AST and UST.
Final adjustment of the UST gain trim should be done 2-3 days
after the installation because the UST output lowers slightly upon the
first days under string pressure.
9.2.
The mono output of the A.2.2 is a special crossover blend of the
UST and AST. The crossover blend is a signal of the UST and AST
crossed over at 700Hz. Sound above 700 Hz is the AST and sound
below 700Hz is the UST. The AST is reproducing the high-mid to high
tones while the UST is reproducing the low-mid to bass tones.