Our Community is over 1 Million Strong. Join Us.

Stop Feeding Overpriced Junk to Your Dogs!

GET HEALTHY AFFORDABLE DOG FOOD
DEVELOPED BY THE AUTOMOTIVEFORUMS.COM FOUNDER & THE TOP AMERICAN BULLDOG BREEDER IN THE WORLD THROUGH DECADES OF EXPERIENCE. WE KNOW DOGS.
CONSUMED BY HUNDREDS OF GRAND FUTURE AMERICAN BULLDOGS FOR YEARS.
NOW AVAILABLE TO THE GENERAL PUBLIC FOR THE FIRST TIME
PROPER NUTRITION FOR ALL BREEDS & AGES
TRY GRAND FUTURE AIR DRIED BEEF DOG FOOD

Getting the most out of my 4ch amp.


balls_to_the_wall
02-19-2005, 09:28 AM
Ok, I have a crappy 500W 4ch Sony Xplod amp that powers my 2 kickers right now. I was wondering, instead of upgrading (which costs more money......) to a Profile something (under 100$). Since it is a 4ch, and I am getting 2 RE 12", if I can put a channel to Each VC, so that equals 4VC, 4ch. Once I run another RCA cable to hook up the other two channels, And the amp is rated at 100x4rms, so, that would be 200RMS per sub, and they are rated at 175. Would this work?...and would it work well. Since I don't really want to justify spending some more money on an amp to power my new subs when they get here.

Thanks

P.S. - I don't know if this would work, but it is just something I thought of while eating supper last night.......

ponchonutty
02-19-2005, 04:13 PM
Yep, bridge it to 2 channels and then run each channel to each sub.

Diceman83
02-19-2005, 06:38 PM
I'd think you'd have to be careful you didn't send different signals to each coil in each sub. (I think that's what poncho what saying.) If you send different signals to each VC, at best you'd end up with interfering signals and bad sounds. At worst, it could melt the whole thing down. Someone more knowledgable correct me if I'm off base.

balls_to_the_wall
02-20-2005, 11:55 AM
Well, last night i ran another RCA to the amp, and bridged it....It has got some more power now, I think i will keep it now instead of upgrading.
It Now will dim the lights at idle......Never done that before....And I am running a 110A (maybe a 105A, I have forgotten exactly since I put it in)newly rebuilt alternator, and a 725CCA battery. (basically what was stock)

bumpinstang77
02-20-2005, 10:49 PM
when you send a DVC sub mixed signals it will play both simultaneously (sp?) sounding like ass..... or if you got the same signal in reverse polarity it won't do jack..... just wire your subs in series and bridge.

balls_to_the_wall
02-21-2005, 02:15 PM
Why would I want them wired in series...that would be 8 ohms woudln't it...and that means less power???...wouldn't i want to wire them in parallel, so therefore I would have 2 ohms, and more power?

Mannyb18b
02-21-2005, 03:40 PM
You have 2 subs, so wired series each sub will be 8 ohm, together making a 4 ohm load. I doubt your amp can handle 2 ohms bridged

bumpinstang77
02-21-2005, 03:50 PM
u said it was 4 ch so wire each sub to 8 ohms then bridge the amp one sub to each bridged channel.

balls_to_the_wall
02-21-2005, 03:59 PM
What If my amp can't handle the 2 ohms and I set it up for 2 ohms?

balls_to_the_wall
02-21-2005, 04:00 PM
Ok, thanks, I get it now

bumpinstang77
02-21-2005, 06:21 PM
lol ull fry it being sony!

balls_to_the_wall
02-21-2005, 06:51 PM
Ok, I didn't know if it would just get pretty hot, and I could hook up a small fan to help cool it down....

CBFryman
02-21-2005, 06:56 PM
actually if its an xplode 444 it is rated to 2ohm briged but i have one running 1ohm no problem. it took 0.5ohm to fry the first 2 chanels. i love making audio stuff blow up.

balls_to_the_wall
02-22-2005, 03:31 PM
Ok, i went to a metting last night, (30 min away), and had it bumpin all the way there, untill about 6 miles away from where I was going, the power protect kicked on. Damn that amp was hot, if you left your hand on it for more than a few seconds, you would burn yourself....I was just wondering if if I could rig up a couple small computer case fans to cool it down or something....thanks

p.s. it is bridged and I think one sub is wired in series, and the other parallel, cause I swear that one moves more than another....sooooo

CBFryman
02-22-2005, 04:15 PM
ya just make you an amp rack. if you need any instructions PM me and i will get around to it when i can. if not it will be in my stereo project thread i will be starting as soon as my componets get in. Im going to be doing a full system build up thread. maybe PaulD will stickey it after i am done. it will eventually include door panels, amp racks, sub enclsoure building, EQing, gain setting, dampening, the works.

bumpinstang77
02-22-2005, 06:02 PM
Amp racks are for looks not cooling.

balls_to_the_wall
02-22-2005, 07:45 PM
Ok, noob question, what the heck is an amp rack?...Also, I was wondering if i could just mount two case cooling fans (for PC's) to blow onto it, or if that didn't work...Ok, this may sound stupid, and I know it would look Dumb....Cut a hole in the center of the amp heat sink, and mount a fan on it blowing outward....

-Thanks

ngsm13
02-22-2005, 08:19 PM
umm...and amp rack is just something made to mount/display your amps, that's it! :)

Also, people have modded their amps to help cooling...i never have b/c i don't feel the need. But, if you're really interested PM req over on www.caraudio.com

He can help you a lot on the custom cooling deal!

NG

CBFryman
02-22-2005, 08:50 PM
:grinno: an amp rack is anything made to hold the amp. you can display it. but what i am talking about is making a box just big enough for the amp then pushing air though it with cooling fans.... still a rack...and if you put plexi on the top it will display them.... and it keeps air moving overthe hear sink...

Add your comment to this topic!