This is the japan version of the legendary SR-007mk1, the SR-007a, with the desirable serial SZ2 series serial number and NOT the less-desirable SZ3 2.5/2.9 version.
I am including the ear speaker's designed-for electrostatic amp, the SRM-727A, sold as set only.

Having purchased these earlier this year, I am sad to sell these for wife reasons. I purchased this in Japan and will be shipping from Japan. The imaging, resolution, and... just, WOW, I have learned and understand why these have consistently met the top 5 headphones lists I read on the thousand page threads here. Orchestra, symphony, and any music that you can sit in and absorb like a live concert... this is easily the ace! Even my He1000v2 Stealths don't compare.

AC cable included
RCA cables included
Instruction manual included
Hard case, original boxes included
Catalog with two items for sale enclosed
Earspeaker plastic protection cover included
Cable: PC-OCC parallel 6-core, total length 2.5m

Optional d10s DAC available if you prefer to have a plug-and-play set. Price negotiable but will be a bargain.

Putty included free should you desire to bass-boost with the stax fart blue-tac mod.

Shipping negotiable and I expect to cover some. I am OK with a customs paperwork that works in your favor.

I am the second owner of these headphones. Operation is pristine. No warranty given the era these beauties were manufactured. I can provide evidence of sale history on another platform (eBay) as means of safe transaction guarantee as desired.

Comes from a prior and current owner's home with millions of cats that shed, and a tabacco house that smokes thicker than this year's recent wildfires. (this is sarcasm.. no smoke or pets).

Thank you for looking!