Question about B&W ASW1000 Speaker
I have a maddenning problem with my 5.1 home theater system. The deneon 1601 yes its a little old, am goes into auto protect mode occasionally and now its gone into auto protect at all times . It was connected to KEF Cresta 1s, cresta2, kef centre and PSW100 . When i took the amp into deneon in the uk, they found no fault and said it could be a speaker problem. I took the speakers to the KEF dealer and they coudlnt kind anything wrong with the speakers. I am now aiming to change the amp to a denon 3805 but dont want to risk blowing it if the spakers are to blame. |Is there any way to test the spaekers at home before i go and buy a new amp? i an not very techie I have just recently changed to an ONkYO TX-SR 805. I cannot get any sound fron B & W ASW100. I removed the cable from the receiver and touched the middle terminal. I did the same test with a B & W 601 Sub not currently in use. same result no sound while connected or disconnected to the Onkyo.
Check sub buy pushing cone in gently if you hear or feel a rasping sound the sub is blown,if not check for a fuse where the power cable goes in as this may need replaced.Also make sure you have the sub plugged into the sub pre out and not the six channel input.
PS did switch on the sub in the speaker set up in the menu?
hope this helps.
Posted on Jul 02, 2008
SOURCE: how to test your speaker
If the wire is bear ( no port connections ) then you should be able to try the speakers on most stereo systems. If you have not got the right connections on the back of you stereo then ask a friend if you could try it on there?s. But if the wires have got port connections the only way you can test them is if you can unplug your amp and still have the other speakers on. If your going to get a new amp then why not get some new speakers to go with it.
Posted on Aug 24, 2006
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Posted on Jan 02, 2017
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Jul 24, 2011 | Durabrand HT-3915 System
It is not so easy to probe into to find a protection fault condition. The fault can be your output drivers- the MOSFETS/IC's fitted for both the channels, Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise like a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.
You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board, maybe the protect circuit by itself is shutting off due to a faulty bias , maybe a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the protect is off then check for short on the speakers.
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