Speaker Plans for a JBL 4560A Bass Bin

Description

THESE ARE CONSTRUCTION PLANS
NOT THE SPEAKERS
This auction is for a copy of an original set of
JBL
plans to build a
JBL
4560 bass bin.
The plans are nine (9) pages (8 by 11) with a parts “cut” list and are in a report cover for protection.
This is still one of
JBL’s
finest loudspeaker boxes ever created.
This is a directional horn for a single 15 inch driver (
JBL
2220 Pro recomended).
This horn and vented rear reflex chamber give a usable response to 50Hz with maximum loading above 200Hz.
Dispersion is 90 by 60 at 800Hz and will add 6db to the on-axis sensitivity of the loudspeaker.
Dimensions of the cabinet are: 36″1/4H by 30″1/4W by 23″3/4D.
FREE SHIPPING TO USA AND CANADA (international buyers flat rate shipping)