Hi

I have owned this secondhand NAD302 for years and I've always thought the sound is OK.  It always had loud bang(pop) sound coming out from left speaker each time I turned it on .  But the problem was getting worse so I tried to get it fixed but the technican found no fault on it and charged me for his time.  I am watching a Creek cas 4040 on an auction site.  Could any one share thoughs on these two amps?

Should I find another technician to have a look at the NAD or try the Creek?

Thanks