Product Overview
LT4 = inner diameter + .637" or 16.18mm
The LT Model is the Shallowest and tightest in the Studio Master line. The very shallow cup, coupled with a tight #28 bore (.140 or 3.57mm) combined with an efficient back bore and the longest overall length in the line makes the LT design the top screamer of the Studio Master Series...if resistance is truly your friend!
