Home » Sponsored » Pi Speakers » Wayne, question about Vifa DX-25
Wayne, question about Vifa DX-25 [message #73134] Mon, 25 June 2012 19:48 Go to next message
Bill Epstein is currently offline  Bill Epstein
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Registered: May 2009
Location: Smoky Mts. USA
Illuminati (2nd Degree)
I mentioned before that one of a pair of the old model has a broken connector. Searching here I see you say the new one is essentially the same but PE shows a big difference in sensitivity: 93.5 old; 96.5 new.

I'd like to get just one but not if it won't match by 3dB!

If it doesn't matter, can you sell just one of the new, or should I get it from PE. Otherwise, I'll get a pair from you, if that's OK.
Re: Wayne, question about Vifa DX-25 [message #73135 is a reply to message #73134] Mon, 25 June 2012 21:07 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
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Registered: January 2001
Illuminati (33rd Degree)

Honestly, the new tweeter is real, real close to the old tweeter. They made a good copy. The measurements I get from both are so close you get as much difference moving the microphone around.

There are a couple peaks that might get up to 95dB, but average sensitivity is lower than that, between 93dB and 94dB. It's about a decibel higher between 1kHz and 5kHz than it is between 5kHz and 10kHz too. A gradual downward trend up into the top octave.

As for whether or not I'd put an old tweeter on one side and a new tweeter on the other, I think I probably wouldn't. I suppose that's kind of a perfectionist thing, 'cause they really are close. But still, they just don't cost much money so I'd probably swap 'em both.

Re: Wayne, question about Vifa DX-25 [message #73139 is a reply to message #73135] Tue, 26 June 2012 14:28 Go to previous messageGo to next message
Bill Epstein is currently offline  Bill Epstein
Messages: 1088
Registered: May 2009
Location: Smoky Mts. USA
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OK, just as soon as the nice folks at Social Security send me some more $$$.
Re: Wayne, question about Vifa DX-25 [message #73148 is a reply to message #73139] Wed, 27 June 2012 15:55 Go to previous messageGo to next message
AudioFred is currently offline  AudioFred
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Registered: May 2009
Location: Houston
Illuminati (1st Degree)
Here's the link to a spec sheet that shows the "old refs SPL" graph versus the new. http://www.parts-express.com/pdf/264-1020s.pdf
Re: Wayne, question about Vifa DX-25 [message #73149 is a reply to message #73148] Wed, 27 June 2012 15:56 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18721
Registered: January 2001
Illuminati (33rd Degree)

Good find, thanks Fred!

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