my friend is gonna give me his Sony Xplod sub with Sony amp, is it possible to add on to my Bose system for Sedan? i also want to keep the stock Bose sub.

 

That wouldn't be a good idea because the subs would not be going at the same frequencies and going at different times. Your best bet it to disconnect the Bose sub. Hopefully your friend is giving you that sub for free. =P IMO I would never buy a Sony sub or amp.

 

<blockquote><font class="small">In reply to:</font><hr>

not be going at the same frequencies and going at different times

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?




-JustICE

 

how will it be installed?

can i still control my bass using my stock deck?

 

Justice,

I'm saying that since the subs are different sizes and since he wants to install the Xplod and leave the stock Bose sub going they will not be pounding at the same time... They'll be slightly off.

 

so how will the installation be?

is the sub/amp become a piggy back system to the stock system or will the stock amp and sub be removed and all bose speaker connected to the sony sub?

 

Do you still want the stock sub to pound with the Sony? If so, I'm just taking a guess here, the two amps may possibly be bridged and then both subs could be pounding. I'm sure someone else will answer this question as I'm not 100% sure.

 

How would they not be "pounding" at the same time?

My pics

 

You need to use your own amp to run your sub. You do this by using a line level converter from either your amp or your rear subs, I think it is from the amp. I have an installer friend who is getting ready to do this soon. Not sure if the rear subs will still be working, but with an added sub you won't really need them anywase. as far as controlling the bass. you can control the bass on everything from the stock deck, but not the sub alone. there are no sub bass controls on the stock deck. I have a Phoenix Gold amp and will be adding an LPL that will be a little **** mounted discretely somewhere close to the driver seat that will allow me to control the sub bass from inside the car. Not sure if Sony has anything like this, but you should look into it. I would turn the bass down from the stock deck and turn up the gains on the amp so that the bose system will be able to keep up with the loudness of the amp without getting distorted. I think I will be adding MB Quart QSD's to the doors as soon as I figure out how to do it because I don't thing the bose system will be able to keep up with the sub.Eventually I will just replace everything and convert the dash to Double Din.

 

<blockquote><font class="small">In reply to:</font><hr>

I'm saying that since the subs are different sizes and since he wants to install the Xplod and leave the stock Bose sub going they will not be pounding at the same time... They'll be slightly off.

<hr></blockquote>Personally I wouldn't be all that concerned about it. You can use utilize the stock Bose sub more like a midbass driver and use the Xplod subs as the sub-bass driver, just turn the bass conrol down, and set a very low crossover point with your Xplod subs. The Bose sub has the advantage of being directly coupled to the cabin area, which is a good thing for upper bass reinforcement.

You can always try disconnecting the bose sub and decide which way you prefer the sound. In my system I prefer the Coupe's two 6x9 'subs' going, although in my system they are driven by my amp and are crossed over to not respond below 70hz.

-- Rob

 

Maybe the question is, how would they be pounding at the same time. They're completely different subs. But there's no point in going into complete detail, its not going to be a HUGE difference but in some cases you'll notice it. For example, a 8" sub will "pound" a little quicker then say a 12". Notice how when people buy two subs, they usually buy the same brand and model; not mixing lets say a Xplod and a Rockford. Hopefully you get my point. Not trying to be rude but its pretty much common sense.

 

common sense indeed...

My pics

 

This should not be a problem as long as the subs aren't somehow cancelling each other out. I mean, if what you're saying is true, then building a system with multiple amps and multiple speakers would be out of the question. Buying the same brand is usually the result of preference, not timing. People who buy a multiple subs usually want a visual match and tend to prefer a certain brand anyways.

An 8" sub does not necessarily respond quicker than 12" sub. If what you are saying were true, buying the same brand as you stated, wouldn't work either.

And if it is that much of a concern, you can use a crossover to separate the frequencies so that the frequencies that are duplicated by both subs will be minimal. The human ear doesn't recognize sounds that are duplicated too close together either. This is why echoes aren't heard everywhere you go, but they tend to be heard when the sound is bounced off something further away. On a small level, no speaker in any system ever produces exact timing. Everything from amp design, speaker design to even the length of speaker wires to each speaker can affect this. However there is an acceptable tolerance where we will never notice. And chances are with such a simple add-on, I doubt it would be even close to being far enough off to be heard. It should not even be a minor difference.

Lastly, bridging two amps to drive the same set of speakers is not a good idea. Particularly since we are also dealing with a factory stereo which may not be running at the same resistance or even within range of them. Throw in power handling issues as well and you could end up doing more harm then good.

So is there still no point in going into complete detail? Or do I not have any common sense? I'm not trying to be rude either, and I am open to hearing your reasoning, but if you are trying to convince people to believe your theories/ideas, a little technical info is helpful.

 

I said it is usually the same brand and size. I'm telling you from my experience. I'm not here to argue but I bet if you ask someone in car audio they'll tell you something similar.

 

Are you sure? In both posts below you refer to the different sizes being an issue.


"I'm saying that since the subs are different sizes and since he wants to install the Xplod and leave the stock Bose sub going they will not be pounding at the same time... They'll be slightly off."

"Maybe the question is, how would they be pounding at the same time. They're completely different subs. But there's no point in going into complete detail, its not going to be a HUGE difference but in some cases you'll notice it. For example, a 8" sub will "pound" a little quicker then say a 12". Notice how when people buy two subs, they usually buy the same brand and model; not mixing lets say a Xplod and a Rockford. Hopefully you get my point. Not trying to be rude but its pretty much common sense. "