Cambridge Audio S30 - tweeters to swap

[Qbert25]

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/vifa/vifa_oc25sc65_04.pdf

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?

 

[sreten]

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.