JBL MTC-300BB12, Three Cubic Foot Backbox arrayspeaker Each Control 19CST is equipped

Each Control 19CST is equipped with a durable 8" polypropylene woofer capable of covering the low-frequency range from 42 to 200 Hz

resulting in a natural sound

Maximum Recommended Current: 2

Sensitivity: 98dB

That is Custom engineered in the UK for the Akai MPC One controller

JBL MTC-300BB12, Three Cubic Foot Backbox arrayspeaker Each Control 19CST is equippedThe JBL MTC 300BB12 Three Cubic Foot Backbox features extra thick 16 gauge metal construction and a thick resonance eliminating lining that also provides extra bass response. Made for the Control 300 Series 12" Drivers, this backbox has a dual mounting system for baffle and knockouts on all four sides. Product Specifications: External Volume: 3 cu ft, nominal Internal Volume: 2. 4 cu ft. Knockouts: 22. 1 mm (0. 87 in) diameter openingFive (5)