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<blockquote data-quote="Doxquzme" data-source="post: 8919761" data-attributes="member: 689267">If you&#039;re going fully active, you use a single channel for the sealed sub and a single channel for all the drivers. That is a channel for each midbass and a channel for each tweeter. You do not split the output from the DSP on any of the channels.If you&#039;re going passive/active, using the crossovers that came with the Focal set, then you would use 1 channel for the right and one channel for the left, and 1 channel for the sub.Which Alpine 4-ch amp?Are you thinking of bridging a pair of channels to the sub and using the other two in a passive/active configuration?Need to know the wired load of the sub, the amp(s) you are going to use, and why you are even considering trying to save channels on the DSP.The purpose of using the DSP is to take advantage of its crossovers and time aligmnment which is hindered in an active/ passive setup at best.As to the output voltage, splitting RCA outputs does not impact the voltage to the amps&#039; preamp inputs, but again, there&#039;s no reason to do that if you&#039;re doing things right.</blockquote>

[QUOTE="Doxquzme, post: 8919761, member: 689267"] If you're going fully active, you use a single channel for the sealed sub and a single channel for all the drivers. That is a channel for each midbass and a channel for each tweeter. You do not split the output from the DSP on any of the channels. If you're going passive/active, using the crossovers that came with the Focal set, then you would use 1 channel for the right and one channel for the left, and 1 channel for the sub. Which Alpine 4-ch amp? Are you thinking of bridging a pair of channels to the sub and using the other two in a passive/active configuration? Need to know the wired load of the sub, the amp(s) you are going to use, and why you are even considering trying to save channels on the DSP. The purpose of using the DSP is to take advantage of its crossovers and time aligmnment which is hindered in an active/ passive setup at best. As to the output voltage, splitting RCA outputs does not impact the voltage to the amps' preamp inputs, but again, there's no reason to do that if you're doing things right. [/QUOTE]

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