Speaker /amp incompatibility

[GSOphile]

If you haven't already, good idea to check the tightness of the screws on your speakers, especially the ones that secure the bass drivers.

 

[atmasphere]

David60, on post 33 you say the problem occured after 6 months of ownership and the amp & speaker combo sounded good during the demo period. Since the bass became mushy over a period of time and you didn't return it for service I think what you really want to know is if your specific model Luxman is known to change dramatically during the break-in period?.

Hmm.
What's the possibility that this isn't the amp at all? What if the suspension on the woofers failed? Apparently they are not brand-new. I can't think of a reason an amp would start behaving this way.

@David60 have you tried a different amp recently and found it to be OK?