Do i need a distribution block?
Do i need a crossover? I know this is probably a noobish/stupid question, but im gonna ask anyway just to be sure since im pretty new to this stuff. I have an Alpine 9857 with one set of sub preouts. How do I run 2 amps off of that one set of preouts? Is a crosspver needed to do that? There are two more sets of preouts in the back, but I figured they were for higher frequency stuff like running component tweets and midbass, am I correct in thinking that? Thanks in advance.
Last edited by TheShadiest1_; Apr 25, 2007 at 03:51 PM.
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Joined: Oct 2006
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From: Champaign/Chicagoland
Originally Posted by TheShadiest1_
Is that the right way of doing that though? Wont' the signal get dilluted being split like that?
Regarding your pre-outs though -- A head unit that has subwoofer crossover control usually have a low pass option for 1 set of pre-outs (other things too like non-fading), and a high-pass option for the others. These options need not be used. Having multiple pre-outs gives you flexibility to control crossover options at the head unit instead of at the amp - that is basically all.
what you should do is buy an amp that has a set of input and output RCA jacks on it...then you just run one set to the first amp and then get you a 2 foot jumper to hop to the next amp.....this way its cleaner than the y-adapters...which will work.....just my opinion...im pretty sure that kicker makes amps that can be connected together like that but im sure theres more....hope this helps
I didn't know that some amps have outputs on them. Thanks everybody for explaining things for me. I'll probably go with the Y-Adapters. I don't know where I would be without this site and members like yall.
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Is this an older model 9857 because the one I just searched has front, rear and sub outputs at 2 volts??? I was looking for the preamp voltage and it came up with that. Most of the Alpines seem to be 2 volt RCA unless you spend a little more money. That's always bugged me about Alpine. The other high end players like Kenwood, Pioneer/ Premier, Panasonic, Eclipse, etc. have at least 4 volt and in some cases 8 volt preamp outputs. Especially if it has front rear and sub outs.
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Verdad Gallardo Mines has two sets of F AND R preout and 1 set of sub preout. They are all 2v, I know alot of people were complaining about that with this deck. What is the differences with the higher voltages? Does sound quality increase with higher voltages?
Absolutely. The better the preamp voltage, the better the SQ. Gives you a much cleaner signal. The when you amplify it...sounds that much better and gives you more volume to work with as you have less distortion. Obviously this also depends on your other components in the car...speakers, amps, quality of speaker wire, quality of RCA's, but you at least start with a good signal and go from there!
Originally Posted by TheShadiest1_
Mines has two sets of F AND R preout and 1 set of sub preout. They are all 2v, I know alot of people were complaining about that with this deck. What is the differences with the higher voltages? Does sound quality increase with higher voltages?
I am not sure if the 9857 is the say way, but my sub output only puts out 20-200hz, it isnt a full range signal.
The Front/Rear outputs are 200hz-20khz, and also fade left to right.
The crossover on the deck is also a low pass filter for the sub out, while the crossovers on the front/rear are high pass filters. It will sound funny with a sub hooked up to the front or rear output.
The Front/Rear outputs are 200hz-20khz, and also fade left to right.
The crossover on the deck is also a low pass filter for the sub out, while the crossovers on the front/rear are high pass filters. It will sound funny with a sub hooked up to the front or rear output.
Joined: Nov 2003
Posts: 11,329
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From: Jacksonville, FL (originally from Toronto Canada)
Originally Posted by Walking-dead
Absolutely. The better the preamp voltage, the better the SQ. Gives you a much cleaner signal. The when you amplify it...sounds that much better and gives you more volume to work with as you have less distortion. Obviously this also depends on your other components in the car...speakers, amps, quality of speaker wire, quality of RCA's, but you at least start with a good signal and go from there!