03-09-2009, 08:20 AM
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Join Date: May 2007
Location: tustin, ca
Originally Posted by glnelso
Someone told me you that it is possible to connect two Astron 70's together for running an amp that will draw 110 amps. Can anyone confirm that? And do I need any special connectors? I already have one and thought it may be the way to go.
The voltage regulators in those things arent designed for current sharing.
The power supply with higher voltage output will dominate until it hits current limit.
You have two options:
1) if you run class C amp: you can simply not use regulation, get the power straight off the huge capacitors, which is before the regulator. Paralleling two power supplies are possible if both supplies have identical transformers and bridge rectifiers. Cannot use this on radio because its unregulated = high voltage at no load.
2) split the power feed on the amplifier.
Example: if you have a 4-pill amp, you could power two pills from one supply, and the other two from another power supply. DC feed in amplifier would need to be re-wired to isolate the connections. Both power supplies must be enabled/disabled together or you'll burn up the amp. this is why tube amps are used for base-station