I'd use a multimeter and disconnect your speaker, just in case. :)
Disconnect all your inputs and see if the problem goes away.
Speaker Oscillation issue ?
Hello All...
This is a problem that has been persisting for quite some time... I noticed my woofer on my right Harbeth 40.3XD was acting a bit strange . I turn off the music & the woofer is actually still moving in / out with no music? I tried moving the outputs to see if the problem follows to the other side and also swapping all tubes , no change....must be the amp acting up huh? Any advice appreciated...
Here's my gear :
Manley Monoblock Snappers
Manley Jumbo Shrimp Preamp
Harbeth 40.3XD Speakers
5 responses Add your response
This is clearly an electronics issue. It will be either the amp or preamp. disconnect the preamp from the amp and see if the problem goes away. If yes=> preamp needs service If no=> amplifier needs service This kind of oscillation (called 'motorboating') can be caused by failing filter capacitors in the power supply. This type of failure can lead to failure of the power transformer in that unit, so its a good idea to get a handle on this and find out what is going on. Its really a bummer to have a power transformer fail. |
@tommypenngotti It may be that the failing equipment needs a signal to push it over the edge. Sitting with no signal it might seem just fine. |