Dunlavy SC4 Speakers

2cj, I've heard various stories about John Dunlavy tuning crossovers with parts selection to match his chosen drivers. Also stories about frequency response records being kept by serial number for reference with future driver replacement. Unfortunately with John's passing and the end of DAL I don't know what good any of that would do you if it was true.

My caution at this point would be that simply finding the same model tweeter for replacement might not ensure original performance. Now it could still be very good performance, but not necessarily as originally intended. That could only be determined by your own audition.

Pryso my thoughts are the same. However there's not much locally in columbus Ohio for $1500.00 dollars. So I have to take that into consideration as the thred started out my choices have come down to the SCIV $1500.00 or the old Acoustic Research AR9 speakers $1100.00 unless of course I come up with several hundred dollars for shipping.

Ok just got off the phone with the dealer and they have the exact tweeters for the SCIV's so that's a relief. The dealer even ordered an extra set for free since this deal has taken so long.

Dunlavy replaced the tweeters 3 different times because there were improvements to the dome and suspension from Vifa. There was no model call out on this that I was in formed about. I know this because I worked for a dealer in the early 90's and each time I replaced the old with the new. There was a slight improvement in sound. The Dunlavy's had mediocre parts selection at best. I had done extensive mods. The biggest difference was the replacement of the 3 cent resistors for Vishay resistor bridges. Now a days I would use the Duelund's which may be nearly as good in this application and would not have to be custom constructed.This up grade is staggering. John Dunlavy himself told me the resistors would make no difference. Tom

Tom, thanks for the update I will look into replacing the resistors as well.