Bose Car Amplifier 1800-VI User Manual

Locate the unit where it will not be exposed to rain or moisture. If fluid or a foreign object
enters the unit, disconnect the power plug. Do not pull by the cord; grasp the plug firmly.
Contact an authorized dealer or service center.

Place the unit where it will be protected from heat and allow adequate ventilation. Place it
away from direct heat sources, such as heating vents and radiators. Make sure the ventila-
tion holes are not covered and air can circulate freely behind, beside, and above the unit.

Either amplifier requires two 3.5" rack space units with a 15" depth inside the rack (including
the rear supports). Use four screws with washers to prevent marring the front panel.  Neo-
prene rubber washers are a good choice because they grip the screw head and prevent the
screws from backing out in the event of vibration or if the unit is transported.

If either unit is rack-mounted and the rack is transported, you must mechanically support
the rear of the amplifier. You can place a shelf across the rear of the amplifier or brackets
in such a way as to support the rear of the unit. This practice is recommended for all
electronic instruments.

When either amplifier is used free-standing, no thermal considerations are necessary other
than keeping the ventilation holes open.

If the unit is rack-mounted, allow for adequate ventilation exits in front of and behind the
amplifier. When several amplifiers are mounted together in a rack, you may need to provide
air inlets from the outside of the rack.

The unit is fan cooled. The fan is internally mounted so that it draws air in from the front and
exhausts it out the rear. This allows cool air from outside the amplifier to flow over and cool
the power supply components located in front of the heatsinks.

These amplifiers may be stacked directly on top of each other without spacer panels. If an
amplifier is used with other amplifiers, be sure the heat output from each amplifier does not
interfere with the ventilation of the others.

Be sure to plug your amplifier into an outlet capable of supplying the correct voltage
specified for your model. Check to be sure there is enough current to allow full-power
operation of all the amplifiers in your system.

The power plug serves as the Main Disconnect device and should always be easily
accessible after installation.

The current demand of a power amplifier varies depending on the impedance of the load,
the output level of the amplifier, and the crest factor and duty cycle of the program material.
For example, consider typical conditions reproducing rock music, with both channels driven
into 4 ohms to the point where musical peaks are just at the clipping point.

Under these conditions, the Bose

®

 Model 1800-VI amplifier requires an average of 6.7 amps

for 120V versions (3.5 amps for 230V versions).

The Bose Model 1600-VI amplifier requires an average of 4.2 amps for 120V versions (2.2
amps for 230V versions).

You can mount the Bose Model 1800-VI or 1600-VI amplifier without concern for magnetic
flux leakage. However, it is not a good idea to mount any power amplifier near a micro-
phone input transformer or magnetic storage media.