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Old 12-28-2010, 08:27 PM   #14 (permalink)
chops
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Quote:
Originally Posted by bigaudiofanat View Post
It can run fine at 2 ohms as it says on spec pages and on some websites as along with experience. I do not deal with JL that much as some do. SO this means that if you go with 4 ohm sub your only going to get 300 as if you were to go with another sub and run it at 2 ohms you can get 500 watts.
Quote:
150 watts RMS x 2 + 300 watts RMS x 1 in bridged mode (4-ohm stable in bridged mode)
yes, the pdx 5 can run at 2ohms, but not in bridged mode according to alpine's spec sheets. regardless of impedence, the mono channel on the pdx 5 will ALWAYS run 300watts RMS.

anyway, not trying to argue with anyone here. as per the OP, i was just trying to point out that installing a 2ohm sub, on an amp that is not 2ohm stable in bridged mode will likely burn up the amp.

you can go ahead and buy the 2ohm sub, and just run the amp in normal 5 channel mode, with 75 watts going to each channel and 300 watts going to the sub at 2ohm, but whats the point? you have 2 channels being wasted...unless you're going to be idiotic and install some 4" speakers in the rear. you're better off giving the full 150 watts to the front components.
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