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Old 06-14-2005, 09:30 PM   #1 (permalink)
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head unit problem

srry for the new thread but the last one got a little crowded. i am getting two 2 channel amps for my car but my head unit only has a one pre amp output. this aint good, but if there is a way to get them to both work i would like to know how
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Old 06-14-2005, 09:32 PM   #2 (permalink)
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We were talking about getting a 4 channel for your front speakers(one channel to each tweeter and one channel to each mid-this is called wiring active) and a 2 channel for the sub(bridged)

Don't worry about the one preout, the 4 channel amp will take one set of inputs, and the amp has RCA preout's for the other amp.

I went more into detail on the other thread.
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Old 06-14-2005, 09:36 PM   #3 (permalink)
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so the d5 is a 4 channel
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Old 06-14-2005, 09:38 PM   #4 (permalink)
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yup
very nice amp too, VERY good crossovers for running active, I do not suggest the D3 amp for the front speakers because it doesn't have as advanced crossovers as the D5 amp. (for wiring active)

The D3 amp however will work great for the sub, and has more power than the d5
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Old 06-14-2005, 09:39 PM   #5 (permalink)
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let me see if i get this right. one channel on the d5 wil connect to the head unit and another will be used for the tweeters. the third will be for the mid range speakers and the last will connect to the d3 amp while the other channell left on the d3 will connect to the idq15
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Old 06-14-2005, 09:47 PM   #6 (permalink)
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No you are confusing speaker outputs with rca outputs.

I'll explain this in laymens terms in a minute, but let me ask you this ? first. Have you actually looked at the back of the headunit to see how many rca outputs there were?

I was looking at the specs(you said cda-9823 right) if so that headunit is supposed to have two sets of preouts.
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Old 06-14-2005, 09:48 PM   #7 (permalink)
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no its actually a 9821
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Old 06-14-2005, 10:01 PM   #8 (permalink)
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OK no worries, take the one set of RCA's, run it to the D5(4 channel amp)

On the amp it will have a ch. 3/4 input select. You will push this button in to make the amp run in 2 channel mode. Which should allow you to use just one set of RCA cables.

If I am mistaken and it does require all inputs of the amp to have an RCA wire, then you will simply need to use a pair of y-splitters.



If you have to do this, you will still have to select the 2 ch operation mode.

The D5 amp will have it's own set of RCA preouts for the sub amp. You get another set of rca's and run it from the 4 channel D5 amp to the inputs of the 2 channel D3 amp.

This was all explained in the other thread. Let me know if you still have ?'s
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Old 06-14-2005, 10:05 PM   #9 (permalink)
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well i am ordering the amp tommorow and it turns out that the sub will be here sat. two weeks until i can order the d5 and the speakers/tweeters, so when i get it all i will then go to a local shop to get wireing
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tokico struts, whitline sway bar, ractive strut bar, weapon r intake, alpine cda9855( it was a 9821), idq 15, d5 300, d3 400, (seas 7" woofers, lpg tweets), and prolly the only cam with a cb radio
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Old 06-14-2005, 10:08 PM   #10 (permalink)
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sounds like your audio project is becoming a big hecktic madmax.. you need to read up and gain knowledge about audio equipment and ohms and all sorts of things so that you dont mess something up.. we can help you but you kinda need to know a little bit.. as for the channels of the amp.. hes just saying that one channel will be used up by 1 tweeter then 1 for the other tweet.. 1 for the one mid and another 1 for the other side.. not complicated.. and then the other channel as a sub.. doesnt really have anything to do with RCA's.. but anyways i dont mean to rag but.. you should try to figure out some of this stuff by browsing the internet.. and learn the whats what with audio.. oo btw good luck.. i hope it turns out good for you.. it should if cam2x is helping
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Old 06-14-2005, 10:19 PM   #11 (permalink)
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Quote:
Originally Posted by madmax3208
well i am ordering the amp tommorow and it turns out that the sub will be here sat. two weeks until i can order the d5 and the speakers/tweeters, so when i get it all i will then go to a local shop to get wireing
Make sure they know what they are doing. Ask them qualifying questions like- What does wiring active mean? If they can't answer that or they tell you that you should have gotten a 2 channel amp and some components with passive crossovers, then I wouldn't trust them.

The type of install that were talking about is definitely high end. Alot of regular places don't get too indepth like this, they will just sell you coaxials or components and wire them using the passiver crossovers.

Is there any way you can do this yourself?

Also you are going to want to deaden those front doors with something like dynamat. I rec. raammat60, it's much cheaper than Dynamat Extreme and pretty much the same stuff(if not better)

This will make a HUGE difference in the performance of the mids.

Also you're going to want to deaden the rear decklid/trunk and rear speaker deck. Those are going to rattle like a mo fo.

The raammat60 sells for 89 bucks for 62.5 sq ft, and about 10-15 bucks shipping.

I would seriously consider installing this yourself, it really isn't that hard. But just make sure the shop knows what they are doing, and make sure they make speaker mounts for the mids out of MDF wood, and deaden the front doors at least.
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Old 06-14-2005, 10:20 PM   #12 (permalink)
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yeah i am new at this but i think that once i get everything i will be able to figure it out, i have gotten speakers, struts, rsb, custom cai, and cb radio all without any instructions( never really wondered why i didnt use them but i wanted to figure it out)ne ways im hoping it wont be all that hard and there is a very good audio shop here called roger's stereo. oh and they also have a 15inch sub box for 60 bux.(sealed) is that a good price?
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tokico struts, whitline sway bar, ractive strut bar, weapon r intake, alpine cda9855( it was a 9821), idq 15, d5 300, d3 400, (seas 7" woofers, lpg tweets), and prolly the only cam with a cb radio

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Old 06-14-2005, 10:22 PM   #13 (permalink)
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Quote:
Originally Posted by madmax3208
yeah i am new at this but i think that once i get everything i will be able to figure it out, i have gotten speakers, struts, rsb, custom cai, and cb radio all without any instructions( never really wondered why i didnt use them but i wanted to figure it out)ne ways im hoping it wont be all that hard and there is a very good audio shop here called roger's stereo. oh and they also have a 15inch sub box for 60 bux.(sealed) is that a good price?
Yeah that's a decent price, but this is very important. Make sure it is 1.35 cu ft. and make sure it is MDF wood and not particle board.
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Old 06-14-2005, 10:27 PM   #14 (permalink)
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Oh and if you can do the installs you were talking about(struts, speakers, etc) then you can definitely do this install.

You wouldn't believe how many times people ask for help once they find out some shop did a shitty install.

Not saying your shop will do a shitty install, but most of the time, if you apply yourself and carefully plan it out, you can do a MUCH better install then some guy getting paid a little over minimum wage to bust out your install.

These guy's get paid for their time, so they will want to do the install as quick as possible. If you take your time and properly do all the sound deadening(which is just as important as picking out high quality equipment) I guarentee you will get better results.

I can show you some links that will walk you through the teardown of the door panels, and rear deck.

I cannot stress how important it is to apply sound deadening.
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Old 06-14-2005, 10:27 PM   #15 (permalink)
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from what ur telling me its pretty much, getting the right equiptment and hooking it up right. when i got my pioneer speakers i had to take the 3 way 6x9's and drill four more holes in the rear deck( which i should have made an adapter) and the fronts i had to sauder the wires together. besides that it was pretty smooth but the new system i am getting shouldnt involve that much custom work

def getting sound deafening material but not till a while, and i will do the install myself but will ask the local shop for advice. this place is very knowledgable, they have a blauplunkt sponsored xb in the front and a pimped out van w/ at least 10 subs in the back. they did that setup so they should know how to do my set up
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tokico struts, whitline sway bar, ractive strut bar, weapon r intake, alpine cda9855( it was a 9821), idq 15, d5 300, d3 400, (seas 7" woofers, lpg tweets), and prolly the only cam with a cb radio

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