How to power 3 10" subs?
#12
Brian, yea, I will only have one pair of 6x9's if I go with 2 10's.
I don't have a clue as to what I am doing but I have friends who do. I just write the checks & supply the beer.
I don't have a clue as to what I am doing but I have friends who do. I just write the checks & supply the beer.
#13
Registered
Joined: Jun 2004
Posts: 269
Likes: 0
From: Wichita, KS
Jason, I can draw out the wiring for you Friday at the prayer meeting. It makes a lot more sense on paper (r1 * r2 / r1 + r2, just doesn't have the same ring in e-mail
)
Christian
)Christian
#14
I went with two JL Audio 10W7s in 1 sealed box with a divider. (Its a big box). http://mobile.jlaudio.com/products_subs.php?series_id=5
I have a JL Audio 500/1 for each woofer.
http://mobile.jlaudio.com/products_amps.php?amp_id=252
It sounds sick! I don't think you are going to need more than two woofers; or you are going to over-bass your system. I have 10 - 6.5 co-ax speakers (Sony and MB Quart) and I keep the base barely tuned in. The girls do love sitting on the back seat though!!
I have a JL Audio 500/1 for each woofer.
http://mobile.jlaudio.com/products_amps.php?amp_id=252
It sounds sick! I don't think you are going to need more than two woofers; or you are going to over-bass your system. I have 10 - 6.5 co-ax speakers (Sony and MB Quart) and I keep the base barely tuned in. The girls do love sitting on the back seat though!!
#15
Originally Posted by ckentling
Jason, I can draw out the wiring for you Friday at the prayer meeting. It makes a lot more sense on paper (r1 * r2 / r1 + r2, just doesn't have the same ring in e-mail
)
Christian
)Christian
#16
Originally Posted by JasonSmith
Brian, yea, I will only have one pair of 6x9's if I go with 2 10's.
I don't have a clue as to what I am doing but I have friends who do. I just write the checks & supply the beer.
I don't have a clue as to what I am doing but I have friends who do. I just write the checks & supply the beer.
#17
Originally Posted by Gary Anderson
I've wired 3 by using 2 single coil subs and a dual voice coil in the center. This uses a 2 channel amp with low pass filter. The individual VCs should be the same impedence, ie all 4 ohms. You can wire each channel to a single VC speaker then in parallel or series to 1 VC of the dual VC speaker. It depend on if the amp will support the impedence of parallel wiring.
Most unbrideged amps I've seen can run 2 4 ohm speakers in parallel (2 ohms). But bridging usually requires a 4 ohm minimum.
Gary
Most unbrideged amps I've seen can run 2 4 ohm speakers in parallel (2 ohms). But bridging usually requires a 4 ohm minimum.
Gary
Even some of the newer amps that can see a 1 or 2 ohm load and survive still don't LIKE it.

I would try if possible to keep the load to 4ohms on a bridged amp. Even better yet, buy enough amp that it doesn't need to be bridged to do the job.
When you lower the load below 4 ohms you really lose headroom and start adding noise compared to non-bridged.
Plus... bridging adds extra heat to go with those extra watts and extra noise.
I like Gary's idea.
I would do SVC subs on the outside and a DVC sub in the middle. Send a left output to one outboard sub and one of the two center sub VCs and send a right output to the other outboard sub and the other VC of the DVC sub. This would make one 2 or 4 channel amp drive 4 voice coils, two at a time.
#18
By the way... you can go a LONG way on a boat using 6.5s and subs (dialed in well) rather than 6x9s.
I have two pairs of good quality 6.5s plus hidden subs and my cockpit sounds great but it's clean and I didn't have to cut the boat up to do 6x9s.
I have two pairs of good quality 6.5s plus hidden subs and my cockpit sounds great but it's clean and I didn't have to cut the boat up to do 6x9s.
#19
I have eighteen 6 1/2"~ers (9 pairs) and six 12's running off JL amps (all w/ individual capacitors).
Consider this... Spend the money upfront and enjoy it all summer (without problems), using larger amps, not having them run at 100% for max volume expecations with extra batteries - this will get you thru the "heat" issues of the summer having your sound crisp and tight. Buy top of the line speakers/amps and have an "expert" help you with the wiring (if you're doing it yourself - which I highly do not recommend
).
Enjoy!!!!
Consider this... Spend the money upfront and enjoy it all summer (without problems), using larger amps, not having them run at 100% for max volume expecations with extra batteries - this will get you thru the "heat" issues of the summer having your sound crisp and tight. Buy top of the line speakers/amps and have an "expert" help you with the wiring (if you're doing it yourself - which I highly do not recommend
). Enjoy!!!!



