Once I swiched the tubes I opted to check the bias( I should have put them back the way they were originally) Nevertheless,The bias was fine on the left channel but very low on both pods in the right. I adjusted all to .4vdc and haven't heard a pop. I also noticed that the initial thump at start up is not as pronounced.
Thumping sound in right channel of Amp
I own a Cayin A88T for almost a year. I would say it sees moderate use. Recently I am noticing a rather loud thump in the right channel after the initial 30 second warmup. This can happen a couple of times during the first 10 minutes of having turned on the unit. After this time the unit sounds fine. I haven't altered anything on the unit which I bought new. From what I have been reading tube rolling is common practice with the Cayin but this is something totally new to me. I must thank Danlib for the detailed instructions he e-mailed me on biasing the unit.
Should i be concerned about the initial thumping, Will tube rolling solve the problem?
Should i be concerned about the initial thumping, Will tube rolling solve the problem?
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