posted
hey everyone, im new here... but id like to think i know a lil bit about car audio... anyways my system (as of now)consists of a clarion deck, i doubt that matters though... 3 12" series one subs, (RF) and a punch 75.2 amp. im using 8 gauge power and ground wire and im using 12 gauge speaker wire runnin from my amp to my box and in my box the wire is 16 gauge... anyways my amp gets hot after like 20 min. and i never max it out. i was wondering why that is because it never did that when my friend had a system exactly like it... thanks
posted
damn this is hard to explain... in my sub box i have it wired like this ______________ / ____ \ ____ __/_ \ | / \ / \ | | - - - | | sub sub sub| | + + + | | \______/ \_____/ / | \ ____/ / / \ / ___/ / + - ____/ amp
sorry if you cant read that, it looks kinda confusing, im not sure if thats how i should do it to make it sound the best it can. thats just how a friend told me to do it. if you have any suggestions on how to re-wire it to make it sound better or why the amps gettin hot so fast, please post it... thanks
posted
crap that diagram didnt exactly turn out how i wanted it to.... well i have the to subs hooked up to the middle sub positive to positive and negitive to negitive. so now i have two sets of wire so that all three subs are hooked up together so it kinda looks like this 0==0==0 then i have the 2 sets of wire both connected by 2 more sets of positives and negitive and hooked them up to the outlet thing which is hooked up to my amp bridged i think... im not totally sure, i know this all sounds confusing but any help would be really apreciated, im not sure if its runnin 2 or 4 all i know is that its the same system my friend had and it would take a lot longer before the amp got hot, like an hour or so... i think it might be how my amp is hooked up, but im almost positive its all hooked up right, i mean its not that hard, my remote wire is hooked up to the cd deck, the power wire is hooked up to the positive of my car battery and my ground is grounded, its really pissin me off!!! (c: anyways please help, thanks
posted
You wouldn't happen to have 4 ohm woofers do you??? You can wire three 8 ohm woofers this way, but three 4 ohm woofers might present a problem...
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And that's the bottom line, cuz: LORD DUKK SAYS SO!
The Big Show The Dukk says: Know your bass: PORT your damn box!! Have HoleSaw, Will Travel!
posted
I can't think of anyway else to wire those unless you have another amp..or another 4 ohm 12" series 1.
you're running your amp around 1.33 ohm mono right now, which will be quite hard on that amp.
You could use 2 of your subs at 2 ohm mono...and set the gains right for those. Don't try to get it as loud as it was with all 3 @ 1.33 ohms though. It's not gonna happen.
suggestions: 1. get a new amp that can handle that impedance.
2. sell your current subs and get a pair of 4 ohm 12's and run it @ 2 ohm mono.
3. if the 12's aren't loud enough for you..get a pair of jl 15w0's (I like em lots!! ) They should sound good off the power you gave them with that amp. Also...2 15's have about the same cone area as 3 12's. So this would replace your old system nicely.
4. if you don't think the 15's will be loud enough...you could get 4 8 ohm 12's and run it @ 2 ohm mono. You won't want to get real beefy 12's here though seeing that they'll only be getting 50-75 watts each.
JMHO though...take it or leave it \
I HATE EDITING MESSAGES!!!
------------------ 8 10's 1 Punch 200.2 The lil' Sentra that hertz
[This message has been edited by Patrick (edited 07-26-99).]
Posts: 213 | From: Carriere, MS, US | Registered: Jun 1999
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posted
I figured as much.... Did you buy all of the gear new at the same store? If so, take the woofers back and demand the RIGHT ones for that setup. The serious lack of knowledge that some dealers have really pi$$es me off!
ALternately, you're kinda stuck, you need to either take one out, add one more, or change to 8 ohm woofers....
------------------
And that's the bottom line, cuz: LORD DUKK SAYS SO!
The Big Show The Dukk says: Know your bass: PORT your damn box!! Have HoleSaw, Will Travel!
posted
That setup would be fine you'd get around 200-250w per sub. Thats fine for a W6, but why not go with the W3's with that kind of power. Either way it will be fine with that setup.
------------------ 4 DD 9515-2's 2 VLX-400's And a big ported box!!
Posts: 261 | From: School - Drexel University | Registered: Jun 1999
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You could wire the amp in stereo to the left of center sub and the right of center sub and then mono into the center sub. Not sure if those Series 1 can take it mono, but that might eliviate some of the stress on that amp.
Also, do you have air circulating around the amp? That could be a big part of it, how much space between the amp and the closest hard surface (to the heat-sink.)
ub
------------------ "Captain Budget" Never tick off a klingon!
Posts: 7092 | From: No. VA | Registered: May 1999
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are you saying to wire 2 subs in stereo and then wire the 3rd in mono on the same amp?
That would help out impedence wise (2.67 mono or 1.33 stereo)...but that mono sub will be getting twice the power that the other 2 get.
The only way they'd get equal power at an acceptable impedence would be run them all off one channel.
Or if he could get some kind of 12 ohm resistor inline with the mono sub. Which would give him 2 4 ohm and 1 16 ohm sub.
run the 2 4 ohm stereo and the 3rd mono..and they'd get the same amount of power. Wouldn't be much power though...since the amp will be @ 5.3 ohm mono after all this.
------------------ 8 10's 1 Punch 200.2 The lil' Sentra that hertz
Posts: 213 | From: Carriere, MS, US | Registered: Jun 1999
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posted
The resistor would definitely be the cheapest way to fix the ohm problem...but he wouldn't get much power....maybe 120 watts to all 3 subs.
40 watts each might not be too bad though. If you can find a 12 ohm resistor anywhere...you should try this setup first and see if you like it before spending a lot of money buying something else.
JMO
------------------ 8 10's 1 Punch 200.2 The lil' Sentra that hertz
Posts: 213 | From: Carriere, MS, US | Registered: Jun 1999
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posted
I got a couple ideas how about running two subs on one channel at two ohms, one sub on the other channel at four ohms. The amp will run fine and you wont have to buy new subs. I don't see any reason this would present a problem, each speaker should be getting roughly the same power. As for using resistors to drop ohms load you need large resistors and you don't gain anything. If you have a four ohm sub and a four ohm resistor in parallel you will double the power of your amp, and half of that power goes into heating the resistor, so you end up with the same amount of power going to the sub.
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