Toa P-9120DH - Manual (Page 5)

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3. GENERAL DESCRIPTION
TOA’s P-9060DH Power Amplifier is a 2-channel amplifier providing 60 W per channel at 83 Ω (70 V line
output). TOA’s P-9120DH Power Amplifier is also a 2-channel amplifier providing 120 W per channel at 41 Ω
(70 V line output).
Both amplifiers can be used as power amplifiers for the M-9000 (Matrix Mixer Pre-Amplifier) and the T-001T
(Audio Output Expansion) and as expansion amplifiers for the A-9000 series (Matrix Mixer Power Amplifiers).
Besides, they can be used as power amplifiers for other line output devices, thus covering wide range of
applications.
4. FEATURES
• Mountable in a standard 19" equipment rack (2 unit size) using the supplied rack mounting bracket.
• Input level selector switch (–20 dB/0 dB)
• An input signal to Channel 1 can be transmitted to both channels 1 and 2, and the output volume adjusted
using the input volume control for each channel.
• Electronically-balanced inputs.
• Input terminals employ removable terminal blocks to provide maximum connection ease.
• Front-mounted LEDs to show status of protection, peak, and input signal level for each channel.
• Built-in protection circuitry disconnects the power amplifier's output from the load when unusual temperature
rise occurs.
5. INSTALLATION PRECAUTIONS
5.1. When Installing the Unit on the Desk
Keep the amplifier over 10 cm (3.94") away from
objects that may obstruct air flow to prevent the
unit's internal temperature rise.
6. HANDLING PRECAUTIONS
• The supplied power supply cord is designed for exclusive use with this unit. Never use it with other
equipment.
• Use the unit in locations where the temperature is between –10°C and +40°C (14°F and 104°F), and the
humidity is less than 80%RH (no condensation should be formed).
• The unit is a precision audio component. To prevent failure, avoid locations where it may be exposed to
strong shocks or vibrations.
• To clean, be sure to first disconnect the power supply plug from the AC outlet, then wipe with a dry cloth.
When extremely dirty, use a soft cloth dampened in neutral detergent. Never use benzene, thinner, alcohol
or chemically-treated towels, which may damage the unit's finish.
Over 10 cm (3.94”) Over 10 cm (3.94”)
Over 10 cm
(3.94”)
5.2. When Mounting the Unit on an Equipment Rack
• Use the supplied rack mounting bracket.
(Refer to p. 11 "Rack Mounting Bracket Attachment.")
• When mounting the unit in an equipment rack, the inside of the rack
must be sufficiently ventilated. To achieve sufficient ventilation, also
mount TOA's Perforated Panels (1U* or 2U):
(1) at the top and the bottom of the rack, and
(2) above and below the unit.
* 1U size = 44.5 mm or 1.75" (reference size)
Perforated panel
Perforated panel
P-9060DH/9120DH
Perforated panel
P-9060DH/9120DH
Perforated panel
P-9060DH/9120DH
Perforated panel