Interesting to see that this thread has resurfaced after such a long time.
Sadly, from what I heard, the store has closed and disappeared.
Just like Turbo Sonic...I was pretty sad to find a clothing store in its its place when I was in Tokyo in 2015. I guess stores in Tokyo come and go at a rapid pace but it is very sad to hear that this boombox sanctuary has disappeared for good.
Unfortunately, I am not in touch with Kenji as there was quite the language barrier. If anyone on here is, it would be good to know if he's doing alright. Despite not speaking the same language we were in fact speaking the same language when it came to boomboxes and it was very cool connecting with him and hanging out at his store for hours gesturing with our hands and feet, looking at radios and brochures and just having a good time.
I had the pleasure of meeting him again in 2016.
Kenji, thank you for what you have done for boombox culture! I hope you can still enjoy your great collection in whichever location you have moved to!