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<blockquote data-quote="VWBobby" data-source="post: 7540170" data-attributes="member: 624844">Definitely helps, thanks for taking the measurements.&nbsp; The &quot;Bridge Out&quot; and &quot;Bridge In&quot; are usually POST pre-amp section, Usually.&nbsp;&nbsp; That means one amp&#039;s preamp is feeding the other amp&#039;s final amp (master and slave).&nbsp;&nbsp; The input comes from your HU, goes through Amp 1&#039;s preamp and the signal is sent to the 2nd amp&#039;s power amp section.&nbsp; Then both amp&#039;s power amp (final) sections are fed to the subwoofers.It basically comes down to one amp feeding the 2nd amp BS signal that is loaded with noise.&nbsp; Did you check for a possible short between the repaired amp&#039;s RCAs and the chassis?&nbsp;&nbsp; Its possible there there is a small short between the positive and ground.&nbsp; It doesn&#039;t look like it from the measurements you took however.&nbsp; Both sets of measurements are very close to each other so I wouldn&#039;t say one amp is definitely bad.&nbsp;&nbsp; It is normal for there to be resistance between the ground and positive on the RCA&#039;s so I don&#039;t see any obvious shorts from your measurements.</blockquote>

[QUOTE="VWBobby, post: 7540170, member: 624844"] Definitely helps, thanks for taking the measurements. The "Bridge Out" and "Bridge In" are usually POST pre-amp section, Usually. That means one amp's preamp is feeding the other amp's final amp (master and slave). The input comes from your HU, goes through Amp 1's preamp and the signal is sent to the 2nd amp's power amp section. Then both amp's power amp (final) sections are fed to the subwoofers. It basically comes down to one amp feeding the 2nd amp BS signal that is loaded with noise. Did you check for a possible short between the repaired amp's RCAs and the chassis? Its possible there there is a small short between the positive and ground. It doesn't look like it from the measurements you took however. Both sets of measurements are very close to each other so I wouldn't say one amp is definitely bad. It is normal for there to be resistance between the ground and positive on the RCA's so I don't see any obvious shorts from your measurements. [/QUOTE]

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