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Modifications:
From time to time, AMpT will release inside ideas for custom modifying
our pedals. These modifications should only be attempted by experienced
users with good technical SMT chops. Any damage to your ADG-1 based
on workmanship in modifications will not be covered by your warranty.
Perform at your own risk!
Secret Limiter Modification:
Shhh... Don’t tell anyone. And whatever you do, don’t let classic ADG-1
owners know they can do the same trick. The ADG-1 SE contains two
limiters that add compression to your signal. One limiter is on the wet
signal the other is on the dry signal. A resistor and a solder blob sets the
amount of limiting. The resistors here are SMT 0805 package, 1% tol.
Wet signal Limiting:
The mix amp combines the post drive and
feedback signals and contains an aggressive
limiter. This limiter helps to prevent the input
signal from overdriving the buckets and
compandor. It also enables you to play over
infinite repeats without the feedback
overwhelming your playing. If you do not use a
lot of drive or feedback you may prefer less
limiting. To remove limiting all together remove
the “solder blob” from JP1 on the right middle
side of the PCB. Or to reduce it change R1 from 3.92k stock to a larger
value. Try 5-50k for starters.
Dry signal Limiting:
The dry signal contains a limiter that keeps
highly driven signals at a more similar volume
level to the wet signal. To reduce the limiting
change R11 (located in the middle left side of
the PCB) from 4.75k to a larger value. Try 10-
100k for starters.
