re: Using a home subwoofer in a car? Quote:
Originally Posted by arjithin An amp means some purchase and again some wiring.
XAV62BT's manual says 52Wx4 @ 4 ohm, I am assuming this power is delivered at the speaker connections of the wiring harness. But it didnt really specify how much power it will deliver on the 4 audio out pins in the back ( 2 are for front speakers and 2 are for sub or rear speakers). Is it a standard that such audio
out pins always need an external amp? ... |
Yes, of course it means some purchase.  That "52Wx4 @ 4 ohm" means -
a. EACH speaker CAN be given 52W. When it does, it will be so harsh it will not be called music
b. One cannot combine those "52Wx4" to give "208Wx1" to drive a sub - which is physically ONE speaker
c. That "52W" signifies MUSIC power - a strange term that is never related clearly to actual electrical power
d. That 52W actually corresponds to (in standard audio language) approx. 14-18W RMS power - which is fine when driving coaxials or components. Actual power consumed (components, coaxials) is approx. 1-12W depending on how loud you are listening. This doesn't match the ability of external amps, which push 1-40+ W RMS and still sound musical
A subwoofer needs at least 60W RMS to be *audible* in a car, and at least about 80-120W RMS to sound like what the music recording engineer wanted bass to sound like. |