connecting 2 front, 2 rear speaker and sub to HU with 2 RCA outputs

[bumpinsnow]

For my speakers I have a 4 channel amp to connect my 2 front and 2 rear speakers. For my sub I have a mono channel amp. My HU has 2 RCA outputs. Would it be possible to connect my 4 channel amp to 1 RCA output and my mono channel amp to the second RCA? Or should I get a HU unit with 3 RCA outputs. 1 RCA output for front speaker, 1 RCA output for rear speaker and 1 RCA output for sub. With this configuration would a 2 channel amp for my front and rear speaker be appropriate.

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[C-Town 10+ year member]

Get some rca y-splitters

 

[keep_hope_alive Premium Member]

better yet, use the rca outputs on the 4 channel amp to feed the sub amp. i'm betting it has them. if not, see above.