Big Boy is a tiny cafe/bar on a side street off the main road through Jinbocho, the old book shop area of Tokyo. It was opened ten years ago by ex-advertising man Hayashi-san, a very serious jazz collector. He right away started telling us about his large collection, as well as the names of other jazz cafes all around Japan. We immediately felt at home with the warm welcome by Hayashi-san and his wife.
The space is a small one, seating maybe a max of about 15 people. Hayashi-san has taken great care with his audio system and as a result, the sound in Big Boy is incredible. (Details on his web page about all the equipment.) There's a vast amount of vinyl along with CDs behind the bar, all genres though Hayashi-san points out that unlike a lot of other jazz cafes, he plays a lot of contemporary jazz from Europe. There was a new CD by a Polish piano trio playing when I last visited, very swinging.
Big Boy isn't the kind of place to go if you want to have an extended chat; the music is loud and the sound system so crisp, you'll want to just sit back and enjoy the music. Open until 5pm as a cafe, then from 7pm as a bar. Take note: ￥1000 table charge at night. Photos of Big Boy over at Tokyo Jazz Joints
Come out of exit A7 at Jimbocho station and turn left down the alley. Big Boy is on the right corner, less than 30 seconds from the exit.