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Old 25th January 2005, 06:53 AM   #1
rv1890 is offline rv1890  Armenia
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Default vifa pairing

I have a pair of Vifa P17Sj woofers laying around....(#297-308)

I was wondering if the Vifa DX25TG's (#264-578) would be a good match for them??.
After reading and researching I have come up with these tweeters as being a good match ...am i right?


IN case you guys want to glance at the specs..

P17(woofer): 40-5K...87db
DX25Tg(tweeter): 2K-40K....Fs: 650Hz....93.5db

let me know if Im learning this stuff correctly before i start building...
Also if u think theres a better tweeter for the job that Vifa makes.... let me know....thanks guys....(any crossover point suggestions)...i was thinking between 2.7K and 3K???
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Old 25th January 2005, 07:32 AM   #2
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Looks ok to me

rather than just looking at the posted freq response range, it's allways good to look at the freq response curves too.

http://www.d-s-t.com/vifa/data/p17sj-00-08c.htm

http://www.d-s-t.com/vifa/data/dx25tg05-04c.htm

You can see here when looking at the two that there is a good overlap between the two drivers if crossing around 2.7K as you have indicated though I'd be considering crossing a bit lower than that, as the off axis on the mid bass starts to get worse at around 2K (and the tweeter should be able to handle a 2K crossover).... and the other thing is that there are no nasty frequency response peaks which should make the job of making a crossover that much easier.

You will need to pad the tweeter down (with an L-PAD) quite a bit, but that's no major problem

Tony.
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Old 25th January 2005, 08:21 PM   #3
rv1890 is offline rv1890  Armenia
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Thanks wintermute.
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