Bose 1800-VI Panduan Pemilik - Halaman 7

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4.1 Location and general precautions

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.

4.2 Mechanical considerations

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.

4.2.1 Rear support for road applications

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.

4.3 Thermal considerations

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.

4.4 AC power considerations

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

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).

4.5 Magnetic leakage considerations

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.

Model 1800-VI amplifier requires an average of 6.7 amps