i have a TMA amp made by jl audio its the t360.2 model it claims to put out 360 watts x 1 at 4 ohms when bridged.....when i run a single 12" alpine type r to it it pushes the alpine good if its bridged but the amp gets very hot pretty quick and eventually will shut down...why is this? i was told that when you bridge it the amp sees a 2 ohm load...but the amp is not stable bridged to 2 ohms right? the sub is wired to 4 ohms i know it is and its useless to not bridge it because it only puts out 110 watts unbridged....what do i do or is there just no way around this?
2007-08-09 20:53:01 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Car Audio
no specialist i didnt wire it wrong i followed a diagram for bridging one 2 ohm dvc sub to a channel amplifier bridged....and that answer sucked you didnt help for sh**!
2007-08-09 21:04:18 · update #1
insufficient airflow across the cooling fins id bet. you may try using a small fan to push air over it.....
2007-08-09 22:40:34 · answer #1 · answered by mdk68gto, ase certified m tech 7 · 0⤊ 1⤋
the amp is as you say only stable to 4 ohms in bridged mode, but what is your sub? is it a dual 4 ohm sub or a dual 2 ohm sub.?
Bridging the amp does not effect ohms. ohms are a measure of the speaker resistance. if you have a dual 4 ohm sub that is your problem... it can only be configured as a 2 ohm or a 8 ohm..... likely you wired it as a 2 ohm and that would give the results your talking about. if it is indeed a dual 2 ohm wired in series to a 4 ohm load... then you may want to double check your ground. if it is weak the amp may act as you describe. the ground should bolt directly to the frame, such as a seat bolt, and be sure to remove the paint from the connecting surface. also make sure your cables are all the right size. you should have nothing less than a 8 ga wiring.
2007-08-10 05:32:32 · answer #2 · answered by Anonymous · 1⤊ 0⤋
you are right that your speaker should be wired to present a 4 ohm load to the amp. its sounds like you may not have used the right size power and ground cables. this is probably the most common mistake that do-it-yourself-ers make when installing an amp. your amp should be wired using at least 8 guage wire. its is very important that your ground connection is made to a good solid ground. you should remove any paint with sandpaper so that you have good metal to metal contact. also, remember that wire sizes get larger the smaller the number is.
2007-08-09 21:39:05 · answer #3 · answered by modaddy_98 2 · 2⤊ 0⤋
ok heres an easy solution, you need to check your connections because you subwoofer is dvc you have 4 connection posts on the sub goto this site and put in your subwoofer dvc 4 ohm or what ever it is , and it will tell you how to wire it to a specific load http://www.rockfordfosgate.com/rftech/woofer_wizard.asp
and i suggest buying a fan heres a link to a good fan i personally have , i keeps 2 RF 1500.1 modded to 2200watts cool , of course i have 2 fans but im sure it will keep you lil amp cool.. :)
http://www.cardomain.com/item/STISF4
2007-08-10 04:13:13 · answer #4 · answered by Anonymous · 0⤊ 1⤋
make sure u have connected the combinations correctly, may be you are connecting negative and positive terminals together
2007-08-09 21:05:21 · answer #5 · answered by pyarhai2mse 2 · 0⤊ 1⤋
if you want to know the right way you install it click it to
Www.woofersetc.com
Connect to how to install amplifer
2007-08-10 02:19:40 · answer #6 · answered by ROCKFORD FOSGATE 3 · 0⤊ 1⤋
u wired it wrong so wrong.....
2007-08-09 20:57:50 · answer #7 · answered by HF 2 · 0⤊ 2⤋