High Qts indicates this driver will work in a small sealed enclosure
Flange 83.7 mm square
There are 45 pieces to a case
Larger terminal is positive, also marked with plus in red tab
This TC family 3.5 inch 8 ohm full-range driver,with ferrite magnet, paper cone, rubber surround, and plastic basket with front sealing gasket, is designed to be a cost-effective high performance full range driver. The cone utilizes Tymphany-patented PentaCut NRSC cone technology to help dampen and control cone resonances, optimizing the listening experience. The motor contains a copper cap to lower inductance and distortion. The product was designed with portable and compact applications in mind.
The high Qts of this speaker indicates a sealed enclosure would be best. We recommend anything from 0.1 to 0.2 cubic foot for a roll off on the low end around 110Hz.