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Old 06-17-2007, 09:25 PM
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help me choose

so i have a set of Infinity 60.7cs 6-1/2" Component Speakers in my doors
and a set of 5" reference for rear fill (dodge ram std cab). i'm running both
off of a pioneer 4 channel amp (RMS Power @ 4 ohm: 60W x 4
RMS Power @ 2 ohm: 75W x 4). i'm soon to be getting two 10" w6v2's so i wanna make all the changes at once. i want to run my rear fill off of the deck, and then use the 4 channel amp for the doors and add some dash speakers. any recommendations for a 3.5" (maybe 4 if it will fit) coaxle or midrange speaker set that would run well with the power this amp supplies?

suggestions welcome! thnx guys!
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Old 06-17-2007, 09:32 PM
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Why don't you just run all 3 sets off the 4 channel.

Run your doors on the front channels, and parallel the back speakers and dash speakers on each channel, so you are running the rear channels at 2 ohms each, that way all you're speakers will sound great.
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Old 06-17-2007, 10:05 PM
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well i'd probably end up underpowering the two sets then, and i was reading other threads on here where people arn't even using the rear speakers, so i figure if i use the rear off the deck and amp the dash i'll get a nicer sound. especially since the rears are reference series (not as good) and i wanna get
higher quality up front

what dash speakers would you recommend? i was thinking of just sticking to infinity and getting either 3.5 or 4 inch kappa's??
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Old 06-28-2007, 09:00 AM
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If you insist on going with 3 sets, there is only one option. All MUST be powered with the amp. Don't even think about powering anything with the deck. Besides, your 4-channel can handle 4 sets easily, with no power loss. When you are running one set at 4ohm, the set will get the same power as if you ran it in parallel for a 2ohm load, or perhaps a bit less in your case due to quality of amp.

Set it up like this:

Rear channels - 6.5 component set for 60W per side (I am assuming its 4ohm, but if its lower then its only a bonus, so no worries)

Front channels - 5" wired in parallel with the 4", for 75W per side @2ohm (37.5w per speaker x 4 speakers)

If you set it up your way, you would be losing 30W of total power! Why in the world did you even think of that? Not to mention the quality loss! Don't even consider running off the unit, especially since you have an amp thats perfect for your application. But even if your amp couldn't handle six speakers, the only solution would be to get rid of a set, not to power it with the unit!

EDIT: What is going to power your subs? Your front stage will have close to 300W in total, so shoot for over that for the subs. Let me know what you're planning anyway, the subs you chose are good, but I would really consider just getting one of those instead of two, with a proper pro enclosure and around 400WRMS going into it. Perhaps even one 12", considering what you have in the front, it may give you better sound.

Last edited by Salvi; 06-28-2007 at 09:18 AM.
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Old 06-28-2007, 12:55 PM
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i'm running the subs off of an alpine pdx1.1000. i'm gonig with two because i've already custom built a box, and put way to many hours into it to scrap it. i'll post a picture of it when its all done and installed

i thot of running the other speakers off of the amp, but my question was since the dash speakers are 2 ohm and the 5" are 4 ohm, i didn't think u could wire them to the same channel. if u can, could u draw a picture of how to wire the 6 speakers, because i'm confused

the plan is to wire the subs to a 4 ohm load off of the pdx amp. and the 4 channel amp will power the 6.5s off of one channel and the 5's off of the other. maybe the 3.5's aswell

i didn't think u could wire two speakers with different resistances the same channel?
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Old 06-28-2007, 01:02 PM
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oh ya, and also, i was htinking of getting a 12, but the way my truck is set up, two downfiring 10''s worked alot nicer then trying to get a 12" to fit nice, sound nice, and look good.
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Old 06-28-2007, 01:45 PM
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I am not familiar with the W6s, but aren't they 3ohm? They are DVCs right? If you want a 4ohm load, they need to be 4ohm DVCs, similarily for 2ohm. Oh, really tho, its no problem because your amp pushes 1000W through any resistance between 2ohm and 4ohm, or close to anyhow, so wire the two DVCs in series/parallel for the total resistance equal to the resistance of each coil.

About the fronts, of course you can connect speakers of different resistance, the only thing that matters is the final total load. In your case with a 4ohm and 2ohm speaker, wired in parallel, it would produce a load of 1.3ohm per channel, which is below recommendation. If you have cooling and know how to setup the gain properly, nothing should go wrong. You can always run the 2ohm by themselves on two channels, and wire the component set and the 5" to the other two channels in parallel, but if you do that, make sure you get a 4ohm component set, one that requires under 100W (these are everywhere, from low end to very expensive).

I don't need to draw it, parallel just means all positives connect together, all negatives connect together, with no connection between any positive and negative.
In your case, AMP+ to 5"+ to 4"+ and AMP- to 5"- to 4"-.
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Old 06-28-2007, 01:53 PM
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I think you are asking for trouble. Don't just arbitrarily start throwing in extra speakers and hoping for the best. That is the same as being over intoxicated, blindfolded and looking through the bar at 2:30 am and hoping for the hot chick. If you plan on throwing additional speakers up front, you need to isolate the frequencies that they see. You cannot cross them over at the same point as the 6.5" in the door. You cannot wire them with the rear speakers either for the same crossover point issue and the fact that it will destroy staging.



To wire them with the front speakers means that you must make a passive crossover to go on the woofer section of that 3.5" as well. Then you need to be able to tune them properly. What if the 3.5" is way too bright? How can you turn it down independent of the 6.5" set in the door?

Wiring them to their own amp channel will work, it will provide the proper crossover point (high) and allow you to control the levels properly by using the gain. Does your vehicle have a proper mounting location though or are you hoping to find a spot?

You are creating a monster here.... If you want more sound up front, go to a better set of speakers. Sell you Infinity speakers to a friend, take those $ and the $ you were going to spend on the 3.5" speakers, take the $ you will save from installation and invest in a darn good set of component speakers and power the snot out of them to have them keep up with those 12" subs that are going in.
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Old 06-28-2007, 02:51 PM
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the w6's are dvc 4 ohm's. i think your thinking of the w7's that are 3 ohm

and i'll consider selling the components and what not i guess. i'm not sure.....
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Old 06-28-2007, 03:06 PM
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Then slow down and take your time. Do it once and do it right.
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