Amp Question

[ram360]

I have 2 JBL subs each is 250rms and 1000w max. How many watts does my amp need to be? 500w? 600w?

[IndyRamDriver]

JBL overrates the actually power rating of the sub, i would just get a fosgate 250 or 300 and that will do the job just fine. I install carstereo at bestbuy so i have a pretty good product knowledge and have seen the small 250 fosgates push tons of power. Good luck
IndyRamDriver

[Ram-N-Time]

If what IndyRamDriver says is true (JBL over rates their subs) then buy an amp with a rating of 200 to 225 RMS wattage per channel IF you are hooking the subs up in stereo.

Important:

Be absolutely sure your chosen amp can handle the load you are putting on it. Match the impedance (ohms) of the speakers with the amp you choose to use. I am assuming your speakers are either 4-ohms or 8-ohms apiece.

If you plan on bridging your amp then you will need one amp that can put out 400 to 450 RMS watts to 1-channel at either 2 ohms (two - 4-ohm speakers in parallel) OR 4 ohms (two 8-ohm speakers in parallel)

If you have any questions, ask before making any costly mistakes.


Good Luck

[ram360]

Thanks for the help so far. I forgot to mention they are also Dual Voice Coil. Do you think I should also get a 1 farad cap?

[86glh6feetunder]

the cap is a good idea but depending on how much amprage ur gonna use u can possibly toy with the idea of running a second battery and also make sure u use the proper gauge wire and quality .....watch out price doesnt always mean quality

[sinitro]

Don't know where U are getting your information...

We have been running a JBL 12 GT Pro Sub with a 1200W amp for over a year and no problems. Subs are usually blown due to "clipping distortion" not power, and this usually happens when using a lower powered amp and overdriving it. Clipping distortion will destroy any speaker regardless of brand or cost..

[realdeal6973]

Originally posted by sinitro
Don't know where U are getting your information...

We have been running a JBL 12 GT Pro Sub with a 1200W amp for over a year and no problems. Subs are usually blown due to "clipping distortion" not power, and this usually happens when using a lower powered amp and overdriving it. Clipping distortion will destroy any speaker regardless of brand or cost..

thats absolutly true.

so i guess im underpowered on my system too then.

pioneer dehp940
california profile 400 watt 4 channel amp
rockford seperates up front (6.5, tweeter i forget the size of)
pioneer 3 ways in the rear (i forget what size)
mtx thunderform sub (2 10"s)
6 disc pioneer cd changer
pioneer xm radio tuner module.

i also read about a ferad cap the was designed like an amp, to act like 500 1 farad capacitors. i forget the name of it though. looked neat. saves on having to but more than one battery, i think

jim