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OK - Important safety tip...(more) (archive)

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Posted by MikeinNH on April 02, 1999 at 21:03:45:

In Reply to: 2 corrections (more) posted by DC on April 02, 1999 at 19:46:25:

: : Thanks, as usual - I appreciate the insight...I didn't say Sony was "better", but I think they're pretty darn good.

: ***I meant that this is why SONY says that their amp can do this...so that it SEEMS better than the competitions' products. I happen to like Sony stuff myself.

: I realized you wouldn't be able to control the sub gain seperately - and If I did this, I'd have quality rear 4" speakers, either a/d/s or BA, so I don't think I'd overdrive them with 50 watts.

: ***Look at it this way...If you had a speaker that was rated at 89 db (sensitivity), it would require 200 watts per channel RMS to sound as loud as a speaker that was rated at 95 db (sensitivity) that was power by 50 watts/channel RMS. This mis-matching of sensitivities is one reason why amps have sensitivity adjustment screws. If you put 50 watts RMS into two different types of speakers, you may find that one pair (usually the subs) sounds much quieter than the other. In turning up the volume (to get the subs louder) you can damage the other speakers.

I understand that having seperate amps or channels for the subs vice the other speakers is the "best" answer. Now I know that if I want to try the "tri way" method", the respective speakers sensitivities had better be darn close (the ones I'm considering are within 1db of each other, and the sub is the more efficient, and I'd use a "tri way crossover"). As I mentioned - this is all hypothetical at this point, and I do appreciate the info and help.


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