THE MICHAEL TODD COMPANY, INC.
ENGINEERING BULLETIN #4
AUDITORIUM SURROUND SPEAKER REQUIREMENTS
(1) A Low Level Speaker system will be required for auditorium surround (effects) speakers.
(2) Drawings submitted to The Michael Todd Company, Inc. showing the location, quantity and sizes for the Low Level Speaker System, will be reviewed when submitted.
(3) See ENGINEERING BULLETIN #5 for information on the 70 VOLT LINE system which will be used with Low Level Speaker systems.
(4) All surround speakers must be of good quality, having a minimum frequency response of 60 - 10,000 CPS.
ISSUE 3 – 8-12-57