Tube pre-amp pop

You means dc leaking? Would it will damage all my other new components. It is a brand new pre-amp and I thought AR is a good products. Any SP16 owner outhere? Called AR two hours ago, left a message but no response yet.

It does sound as if you have a capacitor leaking dc. Leonard at ARC would be the person to contact. I don't see anyway to fix it w/o sending back to ARC.
It shouldn't damage your other equipment, if the pop is at a low level as you say. If it is a leaking cap, the pop can get louder though, at which point it is possible that it could harm your speakers or amplifier. Get it fixed now.
If it's brand new, just have your dealer replace it, or send it to ARC, it should be covered under warranty.

The Bryston and Rotel are solid state, correct? From my experiences, tube equipment sounds much better, but is more prone to issues like this than solid state equipment.
This is not normal ARC operation though.

Thanks, jmcgrogan. I went to my dealer and tried on both of his SP16. They both are quite, no pops no boops from speakers. You are right that this is not normal. Bought the ARC about a month ago but did not received my Bryston amp untill last week. Just hooked them up couple days ago, very small pop at first and I did not sweat it. Today, the BOOPS sound is louder right beteen the speakers. Will put ARC service at test if the can exchange for another unit. My dealer will let me know and I will post follow-up about ARC customer service. Regards.

Well ARC's customer service is normally very good, that should not be an issue. Has your dealer let you try any of his SP16's with your Bryston? Just to make sure that the problem is not with the Bryston? I doubt that it is, I'm just curious. Have you tried your SP-16 with another amp instead of the Bryston? Did you take your SP-16 into your dealer's shop to try with other amps? The problem is probably the SP-16, but you want to make sure that it is not the Bryston.

I think your dealer should just replace it with another SP-16. It's not like you've been running the SP-16 for 6 months and this just started happening. The problem started as soon as you started using it. I would push your dealer for replacement, not factory service. If he refuses, then I would support another dealer in the future.

Of course that's assuming that the problem does indeed lie within your SP-16.

John

Yeah, I would take the SP16 to my dealer to check it out. Good idea. I hope the amp is not the problem since the dealer did told me it was very heavy and he did drop the box when carying it out (I bought both units at the same dealer) but when power up and power down the down, the Bryston itself is dead quiet,no pops, no poops. I have the baby Krell 400xi in my bedroom. I guess I can use its pre-amp out to the Bryston amp input to check but I am afraid I may messed up both unit. At my old age, I am not fast and sharp as I used to be so I am always scare to mess thing up more. I will ask for new replacement either with the pre or the amp once I find out which one is the culprit. Again, thanks, Jmcgrogan. Ps: I hate issues with electronic gears.I buy them new as an insurance policy. But it is not a very good insurance policy I guess