How to install second amp with only one set of HU preouts?

[ownage9 10+ year member]

How would I install a second amp to my head-unit if my head unit only has one set of RCA sub pre-outs?

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[n2audio 5,000+ posts]

with a couple of these...

 

[60ndown 10+ year member]

or buy an amp that has a 'straight thru' signal in-out?

 

[.::DuD3::. 10+ year member]

daisy chain the amps together

 

[60ndown 10+ year member]

daisy chain the amps together

^ thats what i meant?...daisy chain..

 

[Rattlebrain 10+ year member]

Like this???

 

[kuijo 10+ year member]

how do the splitters effect the preout voltage? and the same for daisy chaining the amps, does the master amp boost the preout voltage at all for the slave?

 

[stones 10+ year member]

how do the splitters effect the preout voltage? and the same for daisy chaining the amps, does the master amp boost the preout voltage at all for the slave?

It causes a slight drop in the voltage(less then 1/4 a volt), not usually enough to be audible unless your HU RCA outs have a really high ohm rating (over 1000 ohms).

As for the master/slave amp, I don't know, never thought about it. I assume it would to ensure they both get the same exact signal.

 

[skeptikal Premium Member]

takes 1 pair of RCA's and can split them into sub, front, and rear outputs for the amp. basically what my equalizer does i just spent more on it, funny to cuz i'm only using 1 amp....

 

[adam71 5,000+ posts]

Double post............sorry

 

[adam71 5,000+ posts]

how do the splitters effect the preout voltage? and the same for daisy chaining the amps, does the master amp boost the preout voltage at all for the slave?

Stones is right...using splitters lowers your pre amp voltage. Using a pass thru from one amp to another does nothing to the signal voltage at all. It just passes it along (without fvcking with it) to the next amp in line. This of course is totally different from daisy-chaining.

For example, my cd changer and XM tuner are all Pioneer P-Bus compatible. So I actually daisy chained the p-bus output from the xm tuner to the p-bus input of my changer then ran the p-bus cable up to my deck and they are now both connected and controlled by the p-bus head unit.

 

[johnecon2001 5,000+ posts]

yeah but the drop isn't even noticeable to most DMM that don't have enough digit slots. so the audible difference won't be heard.