I would leave it unplugged from the mains for a few hours.

I'm not sure this would help, but worth a try...? 

i had a customer with a similar problem, i found hed moved his beosound 9000 to a different position, it turned out that on setting it back up he had not pushed in one of the powerlink cables properly.

try disconnecting everything then reconnecting all the cables again, it also wont hurt to swap over the powerlink cables at the same time , turn the volume right down first on your beosound 9000 and try it.

its a long shot i know, if not i would agree with graham and get them looked at by a service centre.

regards jason

When I blow up my tweeter, the light also doesn't turned green anymore.

It's a protection when somethings wrong!

Thanks to everyone for your replies so far. Still not working I'm afraid...

Guess that means what I suspected it did all along (but was hoping I'd missed something) - a trip to the repairer.

Cheers

Stuart

Well, as you can see from the age of he thread, this happened some time ago. It was fixed, albeit with a AU$500 replacement of the electronics - apparently, to facilitate faster repair B&O recommend simply replacing the main chassis (rather than taking it apart and looking for what could be quite a tedious to find and subtle fault for a repairer) and the faulty one is sent back to Denmark for repair and replacement in someone else's BL1.

Curious approach but so be it - I needed it repaired. However, fast-forward a year and a half and the other BL1 does the same thing! A loud crack and no more sound. (To be honest, it had been doing this on and off for a month or two, but powering off and on again always fixed the problem. Not any more however.) Here I go again...

The BL1 are ~10 years old. I have a pair of Mordaunt Short speakers attached to my original Marantz sound system which must be 15 years old and still going strong.

Am I unlucky, or is this sort of failure an inherent issue with BL1 (or other B&O speakers)? Anyone else had problems?

Stuart

hi stuart,

i  very much empathize you on the above as i had to replace the chasis of mine last year. it costed me 30K INR ~ 650US; i was told by the earlier owner that the chasis needed a replacement as possibly there was a surge.

the B&o dealer ordered a unit and replaced the faulty one though the report did not mention the reason for the same. needless to mention it was an ardous task to replace it. 

given it recurred again in your other unit can some body here suggest the possible reasons and preventive measures for the same.  

regards

pattabhi   

I'm very curious, i'm also in AUS, i used to have BL1, no problems... but... did you always leave it on at the power point? and, How often was the system in use?

Pure curiosity, I understand electronics like to be used, and they also do not like to be switched off at the powerpoint.

I can't believe the problems you have had with your BL1, very very sorry to hear about it, NOT GOOD!...

Maybe the early units were not as well resolved as the units produced later in the 7 years they were in production>>>

Hi pattabhi and Dave

The speakers are never switched off - always plugged in and on standby. The BS9000 they are attached to doesn't get a lot of use.

The repairer said he doubted it was a surge issue - after the first failure, I was concerned that it may have been caused because the system was plugged into an inexpensive powerboard without surge protection, and told him this. His opinion was that the speakers were able to withstand power fluctuations and that surge protectors didn't always work anyway.

If there had been a surge wouldn't both speakers plugged into the powerboard have suffered the same fate at the same time?

Having said all of this, I haven't had this problem officially diagnosed yet. Could be something else.

I read about your BL1 theft and replacement dilemma Dave. Are you still considering a new pair? (Possibly not after reading this...!)

Cheers

Stuart