Go Back  Offshoreonly.com > Technical > General Q & A
JL Audio Amp recomendations? >

JL Audio Amp recomendations?

Notices

JL Audio Amp recomendations?

Old 10-28-2009, 01:50 AM
  #1  
Registered
Thread Starter
 
Join Date: Jul 2006
Location: Oshawa, Ontario, Canada
Posts: 2,034
Likes: 0
Received 1 Like on 1 Post
Default JL Audio Amp recomendations?

Hey Guys!

Over the winter I am upgrading the stereo in my 24ft Outlaw, I am going to put 4- 8" JL W7 subs under the back seat [wanted 10's, but, just not enough room] and 2 or 3? sets of either JL 7.7's or 6.5's [which would be better?] in the cockpit, there will also be one set of 6.5's/7.7's in the Cabin and a single 10" JL W7 in the cabin as well.

I am gonna drive the 4-8" W7's with a single JL 1000/1 and I have a JL 500/1 for the 10" W7 in the cabin, I am just not sure sure what amp to drive the component speakers with? it will either be a JL 300/4 or something similiar?

What do you guys think?

I also wondered if there would be enough "mid" in the system? the 7.7's have a pretty big woofer and a single tweeter, if I crossover the mids to go through the woofers will there be enough mid/highs so it doesn't sound washed out?

Any input is welcome, I am also gonna mount a couple of volt meters similiar the ones in the "Split Decision" Baja Poker Run boat and a Capacitor.

Thanks everyone!
Michael
n20michael is offline  
Old 10-28-2009, 07:01 AM
  #2  
21 and 42 footers
Platinum Member
 
t500hps's Avatar
 
Join Date: Sep 2004
Location: Richmond VA
Posts: 8,182
Received 119 Likes on 61 Posts
Default

cross the 7.7's over as mids and they will KICK....a buddy has his done that way and they sound great (he has 2 pair of 7.7's on a 300/4 and a pair of 10's on a 500/1).
t500hps is offline  
Old 10-28-2009, 01:44 PM
  #3  
Registered
Thread Starter
 
Join Date: Jul 2006
Location: Oshawa, Ontario, Canada
Posts: 2,034
Likes: 0
Received 1 Like on 1 Post
Default

Cool, hoping it sounds good, might be able to get away with a smaller amp to drive the sub in the cabin [10"] but, I think the 500/1 should work good. Would the 300/4 drive 3 sets of 7.7's?

Thanks for the help!
Michael
n20michael is offline  
Old 10-28-2009, 01:58 PM
  #4  
21 and 42 footers
Platinum Member
 
t500hps's Avatar
 
Join Date: Sep 2004
Location: Richmond VA
Posts: 8,182
Received 119 Likes on 61 Posts
Default

If you have subs in the cockpit, I wouldn't bother putting them in the cabin at all.....parties down below tend to be feet UP and dancing turns horizontal!!!

The 300/4 will take a 7.7 on each of 4 channels....I wouldn't try to tie in a 3rd set and risk dropping the ohms and hurting some speakers. If you really want that 3rd set in there, get a 150/2 or some other amp/speaker configuration.
When I installed my stuff (mixture of things I already had) I hooked the 4 stock cabin speakers to the actual speaker outputs of the head unit itself.....plenty of music for just hanging out in the cabin.
t500hps is offline  
Old 10-28-2009, 02:30 PM
  #5  
Registered
Platinum Member
 
Join Date: Dec 2008
Location: Fishers, IN
Posts: 362
Likes: 0
Received 0 Likes on 0 Posts
Default

I have the 6.5 but I would go with the 7.7 ( they were not out when I did mine). I would put the 6.5's in the cuddy because of space. I would also not go with components. It takes more power from your amp to run them. Just get a set of the 1" tweets. It louder and better sound. I have 3 10" jl free air under the rear bench and one in the cuddy. I run two subs off the m1700 and the other two off another m1700. I have four 6.5's in the cockpit with two 1" tweets and two 6.5's in the cuddy. All is ran with a m6600. It is loud and sounds great.
Attached Thumbnails JL Audio Amp recomendations?-img_0243.jpg   JL Audio Amp recomendations?-img_0251.jpg   JL Audio Amp recomendations?-img_0252.jpg  

JL Audio Amp recomendations?-img_0253.jpg  
indywhsle is offline  
Old 10-28-2009, 02:42 PM
  #6  
Registered
 
Join Date: Aug 2009
Location: Jacksonville, FL
Posts: 29
Likes: 0
Received 0 Likes on 0 Posts
Default

Run the M6600 on the 3 sets of 7.7's. Set the crossover output to let nothing below 150htz to the 7.7 drivers and they will jam. Your sub and amp configuration should be sufficient. Make sure that whomever builds your sub enclosures follows the specs for the W7's or you will have wasted your money. Good luck.
DownandDirty is offline  
Old 10-28-2009, 02:53 PM
  #7  
21 and 42 footers
Platinum Member
 
t500hps's Avatar
 
Join Date: Sep 2004
Location: Richmond VA
Posts: 8,182
Received 119 Likes on 61 Posts
Default

The M6600 is a class A/B amp and the 300/4 is a class D amp. At 12.5v the 6600 is a 6 channel but it puts out 55w rms vs 75w rms on the 300/4......just a thought
t500hps is offline  
Old 10-28-2009, 03:11 PM
  #8  
Registered
Thread Starter
 
Join Date: Jul 2006
Location: Oshawa, Ontario, Canada
Posts: 2,034
Likes: 0
Received 1 Like on 1 Post
Default

Thanks again guys!

T500- I was thinking the same thing!, but, the previous owner had already installed a 10" sub in the very front of the cuddy, its quite nicely done, so, I figured rather than taking it out and dealing with the big "hole" I would just put a "good" sub in it [it just has a cheapy "Bazooka" 10" one in there now]

Indywhsle- That looks like a REALLY well thought out system and is very similiar to what I am looking to do, It must sound and pound pretty good! and Thanks for the pics, sweet set up!

Dirty- can the subs be mounted "free air"? I had planned to mount them in the bottom of the back seat [same place as Indywhsle has them mounted] do they require a seperate box to contain them?, or can they just be mounted to the back seat bottom and be left "open" at the back?, if there is enough room, I could get some box material [I think its called "Infinite baffleboard, or something similiar?] and close in the back of the subs if need be, would the boxes need to be individual or would 1 large box work? would I need to port the box or boxes?

THANKS for all the help guys, you have given me a pile of good input already, I will be sure to put it to good use, and PLEASE keep it coming!

Michael
n20michael is offline  
Old 10-28-2009, 03:21 PM
  #9  
Registered
Thread Starter
 
Join Date: Jul 2006
Location: Oshawa, Ontario, Canada
Posts: 2,034
Likes: 0
Received 1 Like on 1 Post
Default

I was also thinking of driving the 4 subs in the cockpit with the 1000/1 and then using one of the new 900/5 JL amps to drive the rest? I could use one channel [500w] to drive the cabin sub, and the rest to drive the 7.7's/6.5's

It would mean buying/wiring 2 amps as opposed to 3, any thoughts?

Michael
n20michael is offline  
Old 10-28-2009, 06:11 PM
  #10  
21 and 42 footers
Platinum Member
 
t500hps's Avatar
 
Join Date: Sep 2004
Location: Richmond VA
Posts: 8,182
Received 119 Likes on 61 Posts
Default

pairing up speakers on a larger amp will reduce them from 4ohm to 2 ohm......some speakers have a problem with that and the amp will run much hotter trying to push too many speakers. The 900/5 is not a bad idea, just make sure you use VERY heavy gauge wire. JL makes the 10in subs in "free air" or box only styles, don't remember which model is which but they make both.
t500hps is offline  

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.