ykm

Responses from ykm

Are my speakers supposed to do this?
Tooter, first of all gears got great reviews do not necessary mean their spec. are perfect. I understand EE MM also got many great reviews too. Motor boating is some low frequency oscillation and that you saw the woofer was pushed in and out. If t... 
Are my speakers supposed to do this?
Tooter, I was trying to find out any possible clue so to ask the speakers too. If the pre was "causing" your power amp motor boating, the amp is marginally stable. There are many thousand pres out there, the pres you used did not cause any problem... 
Are my speakers supposed to do this?
Tooter,Same power amp, but was it the same speakers too ?Regards,Ykm 
Are my speakers supposed to do this?
I still cannot think of a clue there is anything wrong the EE MM but the power amp. It is because any amp that would have a problem being driven by any source having a Z=1.5k isn't worth its design...Regards,Ykm 
Are my speakers supposed to do this?
DC ??? absolutely not. High frequency DC...what is that ??? Please tell us how high frequency it is, DC with frequency and still called DC ???What you are experiencing is subfrequency motorboating, or, in other words, an unstable power amp that is...