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2 amps 1 headunit? Help me

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Old 03-13-2011, 04:10 PM
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2 amps 1 headunit? Help me

So i was thinking about adding a second amp for my speakers but i cant figure out what to do about the RCA's. My HU has only one subout thingy
how could i wire 2 RCA's on one input? can i use the 1male 2 female Y's connection to hook up one amp on one and same with the other?
I want to know what you think about it
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Old 03-13-2011, 04:16 PM
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I use 2 Y Cables in my car as the AVH-P4000 only came with two pairs of outs, Stereo and Sub and I haven't had any issues so it should be fine.
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Old 03-13-2011, 04:23 PM
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Thanks alot man im gonna buy some once i get my amp!
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Old 03-13-2011, 04:24 PM
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My only suggestion is that you use a healthy amount of electrical tape on all your connections as Y-cables are infamous for wiggling loose due to them typically hanging a bit from where the amplifier is installed.
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Old 03-13-2011, 04:25 PM
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Or you could use something like a 2 way electronic crossover. I have one made by MTX, it has R/L input and 2 x R/L output (one pair for mids/hi's and another for subs)
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Old 03-13-2011, 04:26 PM
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lots of options y-splitters are the simplest and work well. Depends on what you want. If you want fader control, then you can get an rca dual amp balancer (1 rca input to 2 rca outs), you can get a graphic eq with f/r/sub out, crossovers/sound processors etc.. or an amp with rca outputs built in (deck to amp, amp out to other amp).
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Old 03-13-2011, 04:26 PM
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Originally Posted by Sinemeup
Or you could use something like a 2 way electronic crossover. I have one made by MTX, it has R/L input and 2 x R/L output (one pair for mids/hi's and another for subs)
The only issue with this solution is sometimes you want the signal to remain the same rather than crossing anything over.

Which was my issue. I needed the second set to mimic the front for the rear speakers which are full range while I already had the Sub outs from the HU.

But, depending on your circumstance one of these two are a definitive solution.
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Old 03-13-2011, 05:05 PM
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I would like to keep the spending low. I would go with the Y's splitter but would it affect my speaker amp as i play with the headunit setting? like the subwoofer + or -?
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Old 03-13-2011, 06:02 PM
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You have to keep in mind that the parent RCA's will send the exact same signal to the Y cables, so if you change the settings for one you change it for both.
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Old 03-13-2011, 07:50 PM
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Originally Posted by Dilatory
You have to keep in mind that the parent RCA's will send the exact same signal to the Y cables, so if you change the settings for one you change it for both.
Thats exactly what i thought but

Originally Posted by Dilatory
I use 2 Y Cables in my car as the AVH-P4000 only came with two pairs of outs, Stereo and Sub and I haven't had any issues so it should be fine.
how is this going for you?
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