2. amps-preamps
  3. 176074-89448

Woofer pulsating with no volume , Oscillation issue?

Hello all - I just picked up some new Harbeths and as I was listening I noticed the left woofer moving kind of peculiar....I turned off my source & the woofer was actually pulsating in & out with no source volume. 

I have Manley Snappers . I switched sides (speaker cables) with no input & the problem followed to the other side....must be some kind of amp oscillation issue Im guessing...? Thanks for any troubleshooting help- 

128x128tommypenngotti

Showing 3 responses by tommypenngotti

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tommypenngotti OP
217 posts
 

@atmasphere 

 

problem happens with no input cables ...just amp to speaker , thanks! 

tommypenngotti's avatar
tommypenngotti OP
217 posts
 

@atmasphere 

just replaced all the caps about 6 months ago , thanks 

tommypenngotti's avatar
tommypenngotti OP
217 posts
 

@erik_squires

ya , the left amp has a bias reading all over the map , should be 300 & its jumping radically...did contact Manley about all this, looks like it's headed back to the shop.....thanks

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