designed by Ronnie H Rackhan for Guy R Fountain
12 inch Monitor Red LSU/HF/12/L 15Ω loudspeakers in corner Chatsworth infinite baffle cabinets, 1958.
Very early red drivers, with orange dust covers and side-fixed transfer labels.
Early and close serial numbers.
Cabinets signed by factory cabinet makers.
Cabinet serial numbers:
Driver serial numbers: 030583, 030328