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covered in a dark grey rubber textured laminate. The cabinet shall
have a large folded vent port tuned to extend the response of the
low-frequency driver, using Thiele-Small parameter calculations
adjusted for the effects of turbulence in the port during high-power
operation. The cabinet shall measure 15" wide, 9.25" high, and
8.5" deep, and weigh 15 pounds (Metric specification: 38.1 cm x
23.5 cm x 21.6 cm, 6.8 kilograms).
Each assembly shall exhibit a frequency response from 45 Hz to
18 kHz, plus or minus 3 dB. Its impedance shall be 4 ohms, and
be capable of handling 120 watts program material or 200 watts
peak input using the EIA-426A testing method. It shall generate
an 88 dB sound pressure level, measured at 1 meter with a 1 watt
power input.
The loudspeakers shall be the Monitor One Studio Reference
Monitors from Alesis Corporation.
3.1 MAINTENANCE/REPAIR
INFORMATION
3.1A Cleaning
The cabinet surfaces of the Monitor One are covered with a
textured rubber laminate. Clean these surfaces when necessary
with a lint-free cloth dampened in warm soapy water. To preserve
the textured finish, don't rub hard on the surface. Do not attempt to
clean the cabinet with a brush (which may damage the surface) or
a sponge (which may leave small crumbs in the texture).
Do not attempt to clean either of the drivers.
The Monitor Ones require no periodic maintenance.
3.1B Service
Before sending the Monitor Ones in for repair, make sure they are
faulty and that the problem isn't being caused by something else
in the system. Distortion or noise may be caused by a defective
amplifier, preamp, cable, equalizer etc., or a loose connection in
the system. Connect the Monitor Ones to a system that is known to
be working properly to check whether the monitors have
malfunctioned.
Should service become necessary, YOU MUST FIRST CONTACT
ALESIS TO OBTAIN A RETURN AUTHORIZATION NUMBER
BEFORE RETURNING THE UNIT TO ALESIS OR AN
AUTHORIZED ALESIS SERVICE FACILITY. If the unit is to be