alright heres my setup....

stock bose system

i spliced into the rear speakers to connect the amp

its a sony xplode 1200 watt 2-channel amp.. 600 rms bridged

the sub im running is a Rockford Fosgate 10" HX2 (dual voice Coil 4ohms)... 1000 watt max... 500 rms

and well heres the problem.. the sub is wires in parrallel.. + to +... - to -

and well it runs fine for about 20 mins or so... but then the amp starts getting real hot and starts cutting in and out... and it's very annoying lol

also... the lights in the car seem to flicker.. any suggestions on what i can do to fix this??????

thanks for all your input

Z

 

That sony amp wont run bridged at 2 ohms. Put one voice coil per channel and that should stop it. Or you could always get a good amp

-Kevin

 

how would i do one voice coil per channel?

 

Yea you shouldn't run amps at a 2ohm load in mono. You should wire it in series for an 8 ohm load. Your amp and electrical system will thank you.

 

if i do it in series and run a 8 ohm load... can i bridge it then? or would it be better to run in stereo?

 

If it makes 600 at 4 ohms mono then it makes 300 at 8 ohms mono or 150 per voice coil. Youshould wire the sub in mono so the output to each voice coil is identical.

 

I've never messed with dual voice coil subs.... but if each coil is 4 ohm.... can you run the speakers 2 voice coils in series making 8 ohm and then wire the speakers in parrallel dropping back to a 4 ohm load at the amp.... ???????

 

Wire that sub in a series and your amp won't cut out. a lot of 2ch amps can only be stable down to 4 ohms when bridged. you go lower than that, your amp will go into protection mode.

 

ight so i wired the sub in series, - on the box terminal to - on one of teh coils, + of the box terminal to the + of the other coil, and then connected the remaining negative and positive of the 2 coils togeather..... so now it's a 8 ohm load

now im stuck... whats the best way to wire it to the amp now to get the most power..

i tried bridging it.. + of the box terminal to the + of one of the channels... then - of the box terminal to the - of the other channel... but there was no sound out of the sub?

 

 

If you are bridging the amp to essentially run it as mono, you will either be at 2 ohms or 8 ohms. And that amp doesnt have much ***** anyway, so youll get hardly any output at 8 ohms. Hence why I said the best bet is to run one voice coil per channel, so youll be at 4 ohms per channel, and you should get a little more output than at 8 ohms. But you still should get a new amp.

 

eh, i never did like the idea of running a coil off of each channel. the bass signal from each channel might be different. the coils would try to play different signals, and it might sound like crap. my $.02

what's that amp rated output @ 4 ohms bridged?

 

Whatever Sony says is way overrated so it doesnt really matter...i agree i wouldnt do it for my own system, but i also would know better than to buy a sony amp

LLzub trust me just buy a new amp and youll get 10x more sound out of that RF sub.

P.S. who sold you that one? Im assuming online? Because any shop or store shouldve known that amp wasnt right for that sub.

 

yeah, but if all fails, he can put it in a ported box for some spl increase.

i'd sell that amp and get another one.

 

hey kpr10is.... what do u mean by run one voice coil per channel,...liek how would i wire that?

thanks

frekin best buy sold me the amp! i can always return it... but what amo should i go with?

but for now how would i wire what u said?

 

one set of + - on the sub go to one channel + - on the amp. repeat for the other set of terminals.

i wouldn't recommend this though, as i mentioned above. i would get a mono amp to power that sub.

 

DEF RETURN THE AMP ASAP. Their salespeople should have known better than to sell you this amp to run one dvc 4 ohm sub. Not to mention that Sony amps pretty much blow. Even if they just give you a store credit, just get a mono or 2 channel that is 2 ohm stable.

Glad to hear you got it at best buy and didnt just buy random crap online. At least you can get your money back.

-kevin

 

ight sounds good, thanks a lot for the input...ya they told me it would wokr fine with the sub so i was like ight...picked it up for 200 canadian cause it was their last one off the wall...think itll matter if the screws are a bit stripped? its only been like 2 weeks since i bought it so i dont think it should be a problem.. i have my reciept and all... and i mean it was their fault that i bought it

 

well technically it does work fine. but you won't get the power the sub wants.

 

This is exactly why you should run it at 8ohm mono if you dont take it back to the store. It isn't good for the sub to run each voice coil to a different channel. It has to be run from a mono output.

 

thansk for ur input everyone.. i returned the amp today

and i bought myself an infiniti 310A referance series class D mono block amp
installed it and it sounds great... only one problem now lol... lights keep dimming when the sub hits hard...