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pseudo 2 Pi crossover questions [message #40535] Wed, 05 March 2003 10:18 Go to next message
Chris R is currently offline  Chris R
Messages: 133
Registered: May 2009
Master
I'm going to make some more home theater speakers using Fostex
A/V drivers, since I had really good luck with the first pair
I made. My question is this: At what freq. do the KSN1038's
hit flat-3db at the low end? I guess I have to cross the
big drivers since their response goes pretty far out (they claim
20KHz, my ears claim 10-12K). Also, is just a coil going to
do the trick, or will I need a 12dB x-over? I used a pair of
RS piezios I had laying around in the first pair, no x-over,
worked fine. On this next set, I think the 1038 is hot enough
that it won't sound balanced without it. I may even have to
pad the tweeter a few dB. The drivers are about 94dB/1W.

Thx, Chris

pseudo 2 Pi crossover answers [message #40542 is a reply to message #40535] Wed, 05 March 2003 11:55 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18765
Registered: January 2001
Illuminati (33rd Degree)

Do a search for posts about the KSN-1038. There's a lot of good information contained in the archives here, including the specifications sheet from the manufacturer (Motorola) and some suggestions for attenuator components and for crossovers, when needed.

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