Technical information

Macro-Tech 600/1200/2400 Power Amplifiers
Page 40
8.2 Cooling Fan Options
Every Macro-Tech amplifier has a built-in high-velocity
fan that provides optimum cooling. Two optional re-
placement fan blades are available for special cooling
requirements. Crown part C 6594-3 is a quieter, low-
velocity fan blade that in many cases can provide ad-
equate cooling. Crown part C 6593-5 is a reverse air
flow fan blade which changes the direction of the air
flow in and out of the amplifier (not recomended for the
Macro-Tech 2400 ). Important: The optional replace-
ment fan blades should only be installed by a qualified
technician.
8.3 Level Control Security Kit
The MA-LOCK security accessory can be used to se-
cure your amplifier’s level controls in situations where
the front panel controls are subject to tampering. The
MA-LOCK security kit includes the necessary hard-
ware to lock the two level controls on the front panel of
any Macro-Tech amplifier. For more information, con-
tact your local Crown dealer or Crown’s Technical Sup-
port Group.
Fig. 8.2 Installing an MA-LOCK
Level Control Shaft Lock