Was Jack's the place across from the 150 Building on Mass Ave that's now a Guitar Center?
Jack's was on Boylston about 1/4 mile around the corner from Guitar Center.
It was next door to Little Stevie's Pizza, which had a few rehearsal rooms in the basement (unlike Pizzagate).
Wurlitzer's music was just over the bridge at the corner of Mass ave and Newbury and Daddy's Junky Music was just across the street from the entrance of Berklee. All these stores within a one minute walk of each other.
I bought my SonorLite set from Wurlitzers and my Ludwig hammered bronze from Jack's. I still have them.
There's another mention in connection with these stores. Z Music Lab in Brighton (US) was owned by Mike Zavarreli (sp?). His tiny store only carried what he felt were instruments musicians would love. Coolest cat. My friend wanted to trade in his Yamaha amp and Mike put his hand on his shoulder and said "I'm sorry Paul, but that amp has no sound."
His store was about a one minute walk from my house and just across the street from the bank. A very bad combination when your father is drilling you every day to save your money.
I bought my first Ludwigs from him to replace the CB700s I had. He tried talking me out of the deep toms. He had a nice butcherblock set, but I was unconvinced and payed more for those deep drums. Mike was right.
Mike closed the store and then worked at Jack's Drum Shop as their instrument repair person for many years.
Last I heard the other Jack's Drum Shop in Hyannis is still open, but I don't think they're doing much.