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READ THIS FIRST
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ATTENTION LIAISON USER
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In certain instances, equipment using “retro”
and “vintage”
design topologies may
damage DC-coupled input stages, like those used by Dangerous Music and other high-
end pro audio manufacturers. This occurs specifically when the manufacturer does not
modernize the output stage to be compatible with the transistor/IC world of today.
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How does that happen?
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Good question! The non-terminated transformer’s secondary windings (“floating output”)
build up a charge due to capacitive coupling in the transformer windings, which then gets
released as a high voltage transient spike when the gear is patched or switched in, as is
the case with the Liaison.
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I love my Liaison, how can I prevent this damage from occurring?
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If any of your outboard that you wish to connect to Liaison has a
“floating output,”
a qualified tech. can add what are referred to as
“bleeder resistors” to the transformer outputs. Parts cost about 15-
cents!
If you don’t want to go this route there are barrel connectors
you can get from www.rapcohorizon.com, that have integrated
bleeder resistors inside to prevent that transient spike from damaging
the internal components of the Liaison.
Part Number: 100K CM Terminator
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What if I am not sure if the gear I am using has a “floating output?”
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First check with the manufacturer of the specific piece of equipment you are unsure
about. You can also email your questions to [email protected], or call us at
845.202.5100. We have access to some (but not all) design schematics and will help out
where we are able!
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The Dangerous Music Team !
