JBL JBL 601C

Each speaker uses a larger cone than other speakers of the same size. This is accomplished by using a unique basket design and hi-roll surround. The Plus One+ design offers greater bass output and an increase in efficiency. These speakers are marketed as 6½"; the woofers will fit standard 6½ speaker openings, but do not use the industry standard bolt pattern (then again, neither do many car manufacturers at this point). In most 6½ applications, new holes will need to be drilled in the mounting surface of...