THESE ARE THE PLANS FOR BUILDING THE SPEAKER

NOT THE ACTUAL SPEAKERS

This auction is for a copy of an original set of  plans to build a JBL 4520 / C55 Bass-Scoop Rear Loaded Horn.

The plans are six (7) pages (8 by 11) with a assembly instructions and are in a report cover for protection.

This is a rear loaded horn for dual 15 inch drivers.( JBL recommends  D130B, 150-4C, or Pro 2205C drivers.)

This is a thirteen-foot horn with maximum loading to 42Hz. uniform response to 50Hz, usable to 30Hz.

Above 150Hz, the low frequency drivers acts as direct radiators.

Dimensions of the cabinet are: (44"H) by (36"W) by (30"D).

FREE SHIPPING TO USA AND CANADA (international buyers pay actual shipping)