Responses from lapierre

What should I upgrade first amp or preamp?
arapuz couple of more insights...Upgrade to Analysis Plus new black oval 9 or silver oval 2 improving detail and bass $550 - $900.Living in apartment, I would seriously look into Power Conditioner. Condition the AC may significantly lower the back... 
upgrading synergistic research powercell cable
The precision cable allegedly allows more current than copper tungsten. Have not done AB comparison but I'm sticking with precision for now. 
McIntosh D100 variable vs fixed outs soundstage
C2500 or C220 tube preamps are without the digital inputs. What about the C48 that might work as well? It's solid state with 5 eq controls. 
What should I upgrade first amp or preamp?
Why not upgrade power cords and add power conditioner which will be far cheaper than adding new component. 
How to select a subwoofer
REL sub-bass system.R-528 $2299 may work for you.What speakers are you using? 
Spade connection size for McIntosh MC2155 Amp
Analysis Plus will terminate your cable selection with barrier spade.The spade is 0.32" wide, 0.04" thick and 0.68" long.Opening will fit up to 0.19" screw of binding post. 
Help with a system for a guy into electronic music
Just checking in too see if we are answering your questions correctly. 
Help with a system for a guy into electronic music
Good selection of components starting with the Simaudio 340i and Dynaudio 160.Colonel your system is well thought out however, think about dropping down to smaller sub (10s or 12s if using two or one 13 sub) and investing in room treatments and ex... 
Comments on Mctinosh C500T Preamp
Frepec went from C46 to C500T.One of several things that stand out in C500T is the soundstage and low noise floor. In my previous audio room, I was able to achieve a great soundstage where instruments had depth in a not so great small room. With a... 
At What Age Does An Audiophile Buy His Last Amp?
Mitch my Dad overhauled his system at age 73.Enjoy the next purchases and make it a good one. 
Sub recommendation for vienna acoustics bach grand
Home Theater setup used REL B2 with Vienna Acoustics Haydns Grands.Other options:JL AudioREL R SeriesParadigm Sub 12 
Hand crafted equipment rack?
Core Audio Designs or Box Furniture Co 
System down. Need your help and recommendations.
I've done it while changing out tubes.One of new 12AX tubes was not seating properly when installed. Some tubes installed a lot easier when I replaced them. 
System down. Need your help and recommendations.
Possible damaged tube or improper installation of tube. 
Where is Guido Corona?
It's been awhile since I've spoken to G as well.