Burn in after repair?


I had an amplification unit repaired with output and driver transistors replaced in one channel.  In starting to listen to the unit after repair, I find the sound somewhat thin and bass shy.  How normal is this?  Thanks for your thoughts/experience. 

 

jusam

Since when did you need a manufacturer's approval, as a consumer, to either tell other people that you bought from them or that you had a repair done. This place just keeps getting more bizarre.

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