What do you have the most of? And why?
All my gear is european except my CDP. I just like the sound. Like right now I'm listening to Epos 12.2 book shelfs and I would put them against alot of other speakers for sound and range.

my amps are Yamaha but everything else in my main rig is US made. it wasnt planned that way, just the how it worked out. other than preferring an "east coast" sound in speakers i dont have a regional preference for gear.

99% Sansui

I don't know why but i always felt that the Brits influenced me a lot concerning everything related to audio.

mostly japanese

Seat of the pants estimate, and with weighting for my top two systems, I'd say USA and Japanese are about equally represented, with a sprinkling of British-made gear.

Main System:

Amps and speakers are Japanese.
Preamp is Canadian.
CDP is Japanese but soon to be switched to Canadian.

Office System:

Receiver is Japanese.
CDP is Belgian.
TT is German.
Speakers are U.S.

Not by design, just how it worked out, mostly American with a sprinkle of Japanese for the main system.

Jim

The Japanese kit and US kit is probably the majority, but there's a mix of other kit, like Latvia, Britain, and more...

Dingus
What do you mean an East coast sound?
Larry

Clint
Why do you like the Brit products?
Larry

all japanese, all PIONEER, except for my DENON DCD-1500 CDP, which is now out of active duty since i got my PD-91 back into top health. i am a PIONEER guy all the way, but i'll always have a special place for that 1500, as it was my very first high-end CDP. my first cassette deck, which was part of my ex-father's NIKKO/REALISTIC/PIONEER system that he handed down to me around 1999/2000, was a PIONEER. a CT-980W, te be exact. i fell in love with the 1970/1998 PIONEER logo, and their cosmetics, as well. thanks to EBAY, i learned more about their 1980's products over the span of five years or so, and finally put a wish list together. today, my system is almost a complete example of that list. while i still have yet to obtain the CT-S800 reference cassette deck, DV-09 DVD player, and, by a holy miracle, pair of DSS-9 three-way loudspeakers that i need to round out my system, i feel so very lucky to have come so far as i have. say what you may about "PAIN-IN-THE-EAR" it will always be my chosen brand, with vintage products that continue to serve me very, very well...

the east coast sound refers to a smoother, mellower sound when compared to the west coast sound that emphasizes dynamics. some of the more prominent east coast companies were AR, KLH, Advent, Boston, Allison, ADS and EPI, while the major west coast companies were JBL, Klipsch, and Altec.

Pre amp and amps....US
CDPs, DVP....Japanese
CRT...Japanese
Tube buffers...Chinese (maybe Canadian engineered???)
Speakers
....5 pair of Mirage's...Canadian
....1 pair of IMF's...UK

Eclectic selection, like my music

Maybe because they have great audio products at affordable prices and also because I like a lot their minimal looks and simple tech designs.
…and of course because they sound good to me.
For example the engineers behind the extinct Audiolab are now in Cambridge Audio doing an awesome job. I like a lot their new amps and cdp's. Awesome quality at affordable prices.