2. amps-preamps
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ARC 100.2/ GOT A PROBLEM

Well, I am a newbie for ARC AMP. Actually, I just upgrade my system to ARC LS16+100.2. Here is the problem, when I turn the AMP on, there have a subtle "bo" noise come out from speaker and right after ten more second another one.
It is really annoy. I am wondering if this is normal for such HI-END component. My CLASSE CA-100 never have such issue anyway.
Thanks
bradcyh
audphile1's avatar
audphile1
5,359 posts
 
turn the amp on without preamp being on. if it still exibits the problem, then call ARC. if it doesn't do the nois thing, turn the preamp on. If you hear the noise then, you probably need new tubes for the LS-16.
bradcyh OP
4 posts
 
Well, now I have a clue. Yep, I always wait a couple of minutes until LS-16 heat up. So, based on Dave's and 9rw
confirmation "POP" sound is normal, I am kinda relieve. As long as it won't get worse, I can live with that. Thanks all your guys kindly help and suggestion.
kw6
692 posts
 
Hi Brad,

How's the sound of the ARC compared to your old Classe?

Thanks!*>)
bradcyh OP
4 posts
 
IMHO, ARC100.2 is more open on high, and more transparent. Sound stage is definitely better. I would say, they are different leve of component.
billyd10s207c
2 posts
 
I plugged in the power cord to a two prong power plug and that eliminated the hum. Anyone have any thoughts on this?
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