AVS Special Member
Join Date: Jan 2001
Location: Sunnyvale, CA , USA
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OK, didn't realize we were talking about car amplifier.
Here is the deal. The specs on the Amp do not give numbers for Bridging the Amp into 2 ohms. They specify Bridge into 4 ohms at 460 watts. They also specify stereo mode of 230 watts into 4 ohms each. The safe thing to do is to run the amp in stereo mode with one speaker connected to each channel and then use a Y adapter to parallel the inputs of the amp. That way you get 230 watts into each speaker. If you are willing to live with distortion the max power rating in that configuration is 300 watts per channel. I doubt you could hear the difference between 230 watts each and 300 watts each. Bridging the amp doesn't seem to help since with speakers in parallel the load becomes 2 ohms and I don't think the amp will like that. Putting the speakers in series puts the load up to 8 ohms the amp has no 8 ohm specs so we can only guess and do some basic math to figure what you might get and that again looks like 460 watts or 230 watts for each speaker. So, my recommendation is to run it in stereo mode driving each speaker individually and parallel the inputs.
As a side note, you asked which is louder. For most people a 3db change in volume is needed to be able to perceive that change. That 3db change would require a doubling of the amplifier power level. So once you get up over 100 watts, you can see that it takes a lot of power to move to the next perceived level. That is why I said going from 230 watts to 300 is not really going to be noticed other than producing distortion which you might hear.
Hope this helps.
"So many tweeks....So little time!"