Andyoz
04-28-2009, 11:23 AM
A bit of a continuation of this thread from a year ago. http://audioheritage.org/vbulletin/showthread.php?t=22496&highlight=bbsm12 Not really JBL but I thought I'd put it in the Lansing Technical help forum anyway.
Turns out that another pair of approx. 15 year old Westlake BBSM12's are up for grabs. They came out of a radio broadcast studio in Dublin. They are sitting in the showroom of a studio kit supplier, as they supplied them with the Genelec's that replaced the Westlakes. The good news is that all the woofers are fine but it goes downhill after that.
In one enclosure, both the mid and tweeter show signs of distress and overall that speaker does not sound right at all. The mid sounds harsh and the tweeter output is too low.
The other enclosure sounds great (really good actually) but there is a slight tear in the mid surround so that drivers is on the way out.
Will drop Westlake an email, but from what they told me last time I know this much:
1. They changed the type of woofers after Serial No. 757 from Audax to Focal as the Audax unit was discontinued (these are are Serial No's 771/772 so have the Focal woofers)
2. The midrange is an Audax PR17HR70. The only useful reference I can find is here http://www.cadaudio.dk/audaxunits.htm and that says the PR17HR70 has been repalced by the PR170M0. See note at the very bottom of page where it states PR17HR6-/70/100 has been rpalced by PR17oM0 - this one size fits all repalcement worries me! Would Westlake send a pair of replacement drivers if I asked them nicely? It's the only hope to salvage these speakers I think.
3. The tweeter is an Audax TW034X0 and that is listed in the link above as a current model.
Overall, I think there is just too much wrong with these though. If they want to let them go really cheap, I may be interested. Just drop in the nearest replacement Audax drivers I can get and have a blast.
Even listening to the "good" one of the pair, I can tell these things are very efficient with a revealing midrange. I only used my Bryston 3B for the demo but really needed my 4B to get them going. Not sure I could listen to them all the time, but would be a great second system to get another perspective on the CD collection. Will post photos later.
Turns out that another pair of approx. 15 year old Westlake BBSM12's are up for grabs. They came out of a radio broadcast studio in Dublin. They are sitting in the showroom of a studio kit supplier, as they supplied them with the Genelec's that replaced the Westlakes. The good news is that all the woofers are fine but it goes downhill after that.
In one enclosure, both the mid and tweeter show signs of distress and overall that speaker does not sound right at all. The mid sounds harsh and the tweeter output is too low.
The other enclosure sounds great (really good actually) but there is a slight tear in the mid surround so that drivers is on the way out.
Will drop Westlake an email, but from what they told me last time I know this much:
1. They changed the type of woofers after Serial No. 757 from Audax to Focal as the Audax unit was discontinued (these are are Serial No's 771/772 so have the Focal woofers)
2. The midrange is an Audax PR17HR70. The only useful reference I can find is here http://www.cadaudio.dk/audaxunits.htm and that says the PR17HR70 has been repalced by the PR170M0. See note at the very bottom of page where it states PR17HR6-/70/100 has been rpalced by PR17oM0 - this one size fits all repalcement worries me! Would Westlake send a pair of replacement drivers if I asked them nicely? It's the only hope to salvage these speakers I think.
3. The tweeter is an Audax TW034X0 and that is listed in the link above as a current model.
Overall, I think there is just too much wrong with these though. If they want to let them go really cheap, I may be interested. Just drop in the nearest replacement Audax drivers I can get and have a blast.
Even listening to the "good" one of the pair, I can tell these things are very efficient with a revealing midrange. I only used my Bryston 3B for the demo but really needed my 4B to get them going. Not sure I could listen to them all the time, but would be a great second system to get another perspective on the CD collection. Will post photos later.