Cambridge Audio S30 - tweeters to swap - diyAudio
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Old 9th October 2013, 02:11 PM   #1
Qbert25 is offline Qbert25  Italy
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Join Date: Jun 2013
Default Cambridge Audio S30 - tweeters to swap

Hi,
I've a couple of Scirocco S30 speakers. Both of the tweeters burnt out (I can hear just a very very very low sound) and I would like to swap them with new ones.

Unfortunately, speakers are not labeled and I have no idea of the exact specifics or brand.

Only basing on shape and physical measures, they look to be Vifa OC25SC65-04

http://lautsprecherversand.de/pdf/vi...c25sc65_04.pdf

Click the image to open in full size.

But of course I can't be sure. Furthermore, my multimeter reads an impedance of 3.2 Ohm. I thought to read something around 8 Ohm!

Any help?
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Old 9th October 2013, 02:21 PM   #2
sreten is offline sreten  United Kingdom
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Join Date: Nov 2003
Location: Brighton UK
Hi,

Re of that tweeter is 3.2R as stated in the specification sheet.

The speaker is specced as 4 to 8 ohms impedance.

That means two 4 ohm drivers in my book.

If it drops into the front plate it is probably right.

rgds, sreten.

The S30 is also specced as having a first order x/o.

FWIW that tweeters ropey looking response is actually
ideal for a 1st order x/o. The tweeter is electrically
crossed over very high, flattening the big bump,
result is a 3rd order acoustic roll off at ~ 2KHz.
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Last edited by sreten; 9th October 2013 at 02:28 PM.
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