Contour Enthusiasts Group Archives Forums Modifications Audio Yet another audio idiot question

Originally posted by path914:

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Sorry to interrupt all the wonderful RCA talk , but can anyone give me a simple answer to my previous question. Thanks

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OK. So you want to power front speakers with a bridged 4 channel amp, and power the rear speakers with the HU, right? No sub- yet.

The only reason you would want to use 2 pairs of RCA plugs instead of 2 Y adapters would be to retain the fader control on the HU, which would be pointless in this situation. IIRC a 4 channel amp is 1+2 and 3+4, so run a single pair of RCAs to the amp, use 1 Y on the right and connect to 1+2, use the other Y on the left and connect to 3+4.

However, if you decide to add a sub later and use 1+2 for L/R front speakers(not bridged) and 3+4 bridged for sub, I would add another pair of RCAs because your HU probably has a dedicated sub out. So, I guess to save time and money(if you plan to add a sub), you could run the 4 channel RCA wires you mentioned earlier in the thread from the front and rear outputs on the HU and connect both rights to 1+2 and lefts to 3+4. Does that help?

Originally posted by path914:

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All right, my understanding is that I need a 4 channel RCA from the hu to the amp, then a single speaker wire set to each crossover, then two speaker wire sets from each crossover to the tweet and driver. Sound about right?

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Right you are, but some crossovers allow each speaker to be amplified separately. Good luck!

Originally posted by 2G Sport:

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OK. So you want to power front speakers with a bridged 4 channel amp, and power the rear speakers with the HU, right? No sub- yet.

Yup, front drivers and tweeters off the amp and rear speakers off the HU

However, if you decide to add a sub later and use 1+2 for L/R front speakers(not bridged) and 3+4 bridged for sub, I would add another pair of RCAs because your HU probably has a dedicated sub out. So, I guess to save time and money(if you plan to add a sub), you could run the 4 channel RCA wires you mentioned earlier in the thread from the front and rear outputs on the HU and connect both rights to 1+2 and lefts to 3+4. Does that help?

I have no intention of getting a sub later, so that really isn't an issue. However, my HU does have a dedicated sub out, so if I changed my mind later, I would use that to connect to a seperate sub amp not affecting my other connections in any way.

Right you are, but some crossovers allow each speaker to be amplified separately. Good luck!

This wouldn't apply if I am bridging the amp so that one channel is going to each set of speakers, right?

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Thanks for the informative response

Originally posted by contouranado:

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this thread is called yet another audio idiot question, but it wasn't. it was actually a good question that deserved a good answer. but what it should be called is another good audio question with an another audio idiot answer. 50% more power???? i don't see how this could be true, maybe if your old cables were duds,like they were not making a tight connection and it was getting like half the signal or something, but i still cant see it making that big of a difference.and if this was the case that dosent mean every cheap set of cables is bad, you just got a faulty set

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Originally posted by nando1856:

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Originally posted by contouranado:

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this thread is called yet another audio idiot question, but it wasn't. it was actually a good question that deserved a good answer. but what it should be called is another good audio question with an another audio idiot answer. 50% more power???? i don't see how this could be true, maybe if your old cables were duds,like they were not making a tight connection and it was getting like half the signal or something, but i still cant see it making that big of a difference.and if this was the case that dosent mean every cheap set of cables is bad, you just got a faulty set

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I don't think you have the slightest clue of how the relation of increase in power to increase audible perception work to call this an idiot answer. If I was to increase the power of a 100w amp to 150w (50% increase) this would translate to a volume 1.75 decibels higher. This is an increase that is almost inaudible to the human ear. Your speaker will sound slightly louder and better. IT WILL NOT SOUND 50% LOUDER. This is what I meant by a 50% more power. If I would have said the sub was 50% louder which is what it seems like you though 50% more power means, this would require a lot more than a 50% increase in power.

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