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5. HANDLING PRECAUTIONS
• Keep the input cable away from the output cable. If installed close to each other, oscillation could occur.
• To avoid unit failures, never connect outputs of 2 or more units in parallel.
• Only connect speakers with an impedance equal to or greater than those specified. Connecting speakers
with a smaller than specified impedance could cause damage to the unit.
• Periodically clean the filter located inside the ventilation panel on the unit's front panel. If the filter becomes
clogged, heat will become trapped inside the enclosure.
• Install the unit in locations where the temperature is between –10°C and +40°C (14°F and 104°F) and the
moisture is less than 90%RH (no dew condensation must be formed).
• To clean, be sure to first switch off the unit's power, then wipe with a dry cloth. When the unit gets very dirty,
use a cloth damped in a neutral cleanser. Never use benzene, thinner, alcohol, or chemically-treated
cleaning cloth because such volatile liquids could deform or discolor the unit.
6. INSTALLATION PRECAUTIONS
• When mounting the unit in an equipment rack, the inside of the rack must be sufficiently ventilated.
To achieve sufficient ventilation, remove all panels on the rear of the rack.
• When mounting the unit in the rack, also mount a Perforated Panel larger than 1U in size*:
(1) at the top and the bottom of the rack, and
(2) above and below every 5 units.
* 1U size = 44.5 mm or 1.75" (reference size)
Perforated panel
Power amplifiers
DA-550F/500F-HL
Power amplifiers
DA-550F/500F-HL
Rack mounting screws are not supplied with the unit.
Be sure to use the screws with a diameter of over 5 mm (0.2") and
length of over 12 mm (0.47") to mount the unit.
Failure to do so may cause personal injury.
CAUTION