Dave Phillips Music & Sound in Phillipsburg NJ
It wasn't the biggest store around but they had a great selection, very friendly staff, and if it wasn't for this store I can confidently tell you my friends and I wouldn't have been able to restock on sticks, heads, strings, picks, etc when we were just starting out.
I assume you went to the old location as well, but I don't know-- maybe you're too young for that. But I bought my first "real" drum set there-- a five piece Tama Swingstar-- some time around 1981 or 82. Loved that place. My friends and I used to drive over there from Bethlehem and then go to Toby's Cup for hot dogs and shakes.
Back then we also had National Noise on 7th Street in Allentown and Kempfer music on Main in Bethlehem, plus a few smaller places.