Hi Members,
I am in the position to buy a pair of used an SB Acoustics SB13PFC24-4 COAX. Although the speakers look like they are in good cosmetic conditions, one of the tweeter wires has broken right at the tweeter screw point (please refer to the images).
Could someone tell me if this can be fixed without much hard work (for instance unscrewing the back and reconnecting the wire) - and any instructions on this?
I am really really interested in buying these drivers but not being able to have the tweeter working on one of them seems like a total deal breaker.
I would really appreciate any help from wise members on this.
I am in the position to buy a pair of used an SB Acoustics SB13PFC24-4 COAX. Although the speakers look like they are in good cosmetic conditions, one of the tweeter wires has broken right at the tweeter screw point (please refer to the images).
Could someone tell me if this can be fixed without much hard work (for instance unscrewing the back and reconnecting the wire) - and any instructions on this?
I am really really interested in buying these drivers but not being able to have the tweeter working on one of them seems like a total deal breaker.
I would really appreciate any help from wise members on this.
First you need to make sure the tweeter is in good working order. At least, check the tweeter voice coil for dcr value by using a multimeter.
It is always risky to buy used speakers. Think about an alternative, like new units.
It is always risky to buy used speakers. Think about an alternative, like new units.
Thanks lojzek. I agree, used ones are a major risk. Also dcr measure is something that i plan to ask for next ( along with some sort of sound demo (the seller has refusrd to touch the screw in the driver back so i am not sure if there even is a way he can get to the tweeter connectors). The whole thing is further complicated by the fact that the seller is located about 600 km away from me.
In the worst case, let's say one of the (that disconnected) tweeters isnt working, would there be a way to replace it with a new one?
Anyone know of anything?
In the worst case, let's say one of the (that disconnected) tweeters isnt working, would there be a way to replace it with a new one?
Anyone know of anything?
Two BIG red flags, for your own sanity avoid that "deal", not worth the risk.
Check what wolf teeth suggests, but even so, FIRST make certain you can get one, and then maybe the replacement job is not that straightforward.
I mean: a separate Tweeter (or any transducer) on a conventional cabinet, fine, but a coaxial can be very tricky.
Try to find out how to remove the tweeter assembly and check vc resistance: this may well turn out to be less dramatic than it looks at first sight.
Unscrew the screw....tweeter falls off. It is threaded. Mend wire, refit. Simples
Hi Members,
I am updating my repair journey to inform anyone else who might have the same issues in the future.
So, in addition to the repair information I asked for on this thread, I also emailed SB Acoustics. Mark Thomsen from SB was nice enough to respond to me with instructions to fix the speaker (the two major additions to the instructions given here was the advice to desolder tweeter wires from the connector leads and to push the tweeter out with something like a stick).
This gave me enough confidence to actually acquire the drivers. Repairing the drivers was quite straightforward - I pretty much followed what has been told here and in Mark's e-mail.
To summarize, this is what I did:
0. I took care to make sure the speaker diaphragm, surround and spider are protected while working. I did this by using a thick cardboard to cover the entire driver and only leave the tweeter leads and the tweeter back screw exposed.
1. I desoldered the tweeter wires from the connector leads.
2. Unscrewed the tweeter from behind.
3. Pushed the tweeter out by sticking a fairly hard/strong stick from the screw-hole in the back of the speaker - this dropped the tweeter.
4. I rejoined the broken tweeter wire, covered it with shrink-wrap and screwed the tweeter back in.
5. Resoldered the tweeter wires to their corresponding leads.
I think a lot of appreciation for SB Acoustics is in order - for their support with this. Honestly I am still surprised they would even contact an individual Hi-Fi customer especially given that a major part of their business is in the pro audio space.
Also, again thanks a lot to the forum members for the help.
I am updating my repair journey to inform anyone else who might have the same issues in the future.
So, in addition to the repair information I asked for on this thread, I also emailed SB Acoustics. Mark Thomsen from SB was nice enough to respond to me with instructions to fix the speaker (the two major additions to the instructions given here was the advice to desolder tweeter wires from the connector leads and to push the tweeter out with something like a stick).
This gave me enough confidence to actually acquire the drivers. Repairing the drivers was quite straightforward - I pretty much followed what has been told here and in Mark's e-mail.
To summarize, this is what I did:
0. I took care to make sure the speaker diaphragm, surround and spider are protected while working. I did this by using a thick cardboard to cover the entire driver and only leave the tweeter leads and the tweeter back screw exposed.
1. I desoldered the tweeter wires from the connector leads.
2. Unscrewed the tweeter from behind.
3. Pushed the tweeter out by sticking a fairly hard/strong stick from the screw-hole in the back of the speaker - this dropped the tweeter.
4. I rejoined the broken tweeter wire, covered it with shrink-wrap and screwed the tweeter back in.
5. Resoldered the tweeter wires to their corresponding leads.
I think a lot of appreciation for SB Acoustics is in order - for their support with this. Honestly I am still surprised they would even contact an individual Hi-Fi customer especially given that a major part of their business is in the pro audio space.
Also, again thanks a lot to the forum members for the help.