Responses from bigby

Recommendations for PC -- for modest system --
Try Pangea. It is a budget PC from Audio Advisor. They are in my system and I feel they are worth the investment.If you haven't already, call GIK Acoustics to get advise on improvements using acoustic panels. You may get better sound for the same ... 
Power Conditioners
Try the Stellar Power Plant 3 from PS Audio. Give them a call to see if it can power your whole system. They have a good return policy.Also for a big difference, try acoustic wall treatments from GIK. Call them for suggestions. 
Gaining listening experience without spending money
It can get expensive.  Without hearing them, I bought a set of MIT Magnum cables. They didn't sound as  good as I thought they would, so I ended up with MIT Oracle cables.  It would have been far cheaper to skip the Mangum line and go directly to ... 
tidying up cables
My biggest improvement was keeping power cords away from phono preamp interconnects.  They had to run parallel to each other, so I used zip cords to bundle like cables together (my phono preamp has two power cords). Then glass votive candle hold... 
Best Preamp round $8000
BAT tube preamps are my go-to. They have the classic tube sound, are made with the best components and easy to maintain. The companies owner always took my calls and answered emails to give me advice. If you are looking for solid state, Spectral i... 
I'm interested in hearing what "the best" systems sound like, where to go?
Boston - Goodwin's High End - Spectral Audio.  Let me know what you think. 
Whats in your second system?
My second system is the car stereo. 
I need advice for power cords
Try Pangea power cables at Audio Advisor. Very reasonable price. I use them with Spectral mono blocks and Spectral preamp. I am satisfied with the results. 
Seriously considering tube preamp…opinions?
BAT all the way.  There are a couple of good options on AG now.  I had a VK-75SE and VK-32SE comb.  I started with the VK55SE.  You will have to start with a preamp and wait for the AMP to stay within your spending budget. 
Speaker recommendations 10 to 30k and no beryllium
Try one of EgglestonWorks speakers - New or used.  I have the Rosa. Bought it used.  Amazing for a room about the same size as yours.  
Phono's $2100 to $2600
I would go with a Sutherland.  The sound is exquisite.  Ron is very good with customer service and support.  Phono amps are his specialty.  I started with the Hubble and now have the PhonoBlock. Not having to change batteries is a big plus. 
Are Bowers and Wilkins speakers overpriced?
I liked my 803's.  Very natural sound. They had very good resale value too. 
Sutherland Phono Blocks
I have the original Phono Blocks paired with a VPI Classic 3, Spectral 30sv preamp and Spectral 400 mono blocks.  Speakers are EgglestonWorks Rosa.  The Phono Blocks are excellent sounding.  Before them I had the Southerland Hubble (I got tired of... 
Power regenerators on pre / digital - any downsides?
Everything, including 350 watt mono amps, is plugged into a PS Audio P20.  Sounds great.  It barely moves the needle on the P20. 
How much discount typically for a new MC275 to expect from a dealer?
Some equipment is marked up so much I can never even tell if 50% off is enough of a discount.