A mystery for you tech gurus out there

Zydo, same exercise you can repeat with receiver or whatever the suspected component is. sometimes swapping fancy wires to cheap wires also eliminate problem. it's risk free just to purchase and return within month to Best Buy.

Seems we need to work further to ID the component at fault:
1. how far your turntable from your left speaker? try to isolate turntable or simply disconnect and take away from rig and see if problem remains
2. what source you're normally running when the pop(s) occur?
3. have you tried running this receiver 2ch only with video sources disconnected and unpowered or the same with audio sources disconnected and unpowered?
4. have you tried running system with no subwoofer?
5. do you connect your main speakers to subwoofer or receiver? have you tried connecting to subwoofer instead if you didn't?
6. how far your turntable from subwoofer?

One last one:
7) How old are your speakers?

12 years old is enough for studio v60 to be old.
Go to Best Buy and get pair of new cheap polks and play them for couple of weeks. They have one month return policy anyways.
Your components including turntable placed properly and should not create issues.

Liz I simply directed to purchase with return to try. It's not a crime cuz you can return item to Best Buy for reason or no reason within the month of purchase. Hey even if you accidentally fried one or two of them with bad amp, No problem as long as it's done within a month your funds are secured and refundable.

Here's some learning links you should visit to 'brush' your reading and communication skills bellow...

Learn to read carefully from here: http://www.universalclass.com/i/crn/7550008.htm
Learn to properly communicate here: http://www.learningtree.com/training-directory/Communication-Skills-Training-20.htm

If you need more learning resources, let me know.

Not mine either Liz, If you still havin' issues you can refer to my previous post. Practice makes things perfect just like in music.

Answer me Ska_man, why Autozone loans tools for free? Does it bring them profit? Yes I and many others go to Autozone to get pullers, stretchers all kinda tools that occasionally needed(not always) to use. I and many others buy and return equipment from BestBuy monthly, daily, hourly and every minute, second. What'd'ya think? Can you do the math?? Can you find what's wrong in your statement by solving elementary school equation?
Apperently you definitely need to find some learning resources about profit and return on investment before making such infantile conclusion that really make me look like I'm an idiot and so be it because probably I've got used to it.
After attending some PTA meetings as one of the examples, I found out that teachers of elementery school don't know who is Mark Twain, Alexandre Dumas, Homer; also found science and math handouts with obvious typos such as kg/s units of force. What really shocked me, that most of parents and teachers didn't know what I was talking about exactly like both of you and many others of a kind.
Consider me agreed on your and Liz's statement 100%. YOU WIN.
P.S. Following idiot's advice is truely optional and not obligational...

apparently you couldn't solve elementary school equation with all your disoriented answers. too bad.

Z, than you simply SUCK as a dealer AND manufacturer. Many of those like you will loose business just because you will refuse to give to audition your product for a couple of weeks or even to support your client that apperently encountered the problem like an OP. Even Wyred4Sound 15% restocking fee seems to have much better statement than you've just quoted. I will see the future of giant Best Buy overtaking all of your measurable business to start selling Martin Logans, Maggies, Dyns, Krells Macs and other high performance audio equipment including analogue in the near future just because they're not thinking like you and they're not going to throw me out of the customer list.
Is it dishonest to ask BB rep if there's a possibiliity??? Guess now what kind of answer do you expect to hear from BB rep or have you EVER heard one?? Exactly the answer they've been trained to give as a customer rep of Best Buy. I haven't seen them in HT department specifically that they're not happy to assist you at any of your request. Perhaps to better improve your dealer skills you should fill out an application and work at least part time to get a hands-on experience on customer service. I guess it might help running your business better.
If you think one way all the time, you won't be able to solve any problems(LOL even elementary school equations) and wouldn't be able to even stand for the product you manufacture or sell.
Please remember that there's not only length, but width, depth and height. Your math is horrible especially when you try to speak in terms of profits... As I said, find more learning resources before dogmatizing your righteouseness.

I must appreciate Onhwy61's great post. That's my dad's favorite book.

...and what the others see in you now?
a)
b)
c)
d) all of above

Dennon AVRs have been encountering internal problems periodically. They encounter logical processor problems that comming from God knows where. Is your unit on warranty? Can you return it and exchange for similar functions Onkyo Yamaha or Nad which are much more reliable?