A-TECH MA800 Installation Manual - Page 6
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Print Page4.4 Recommendations for Installation in Large Classroom
4.4.1 MA800 Microphone Installation
1） Installation Height: The recommended height from the ground is about 2.6M.
2） Installation Method: boom hoisting
3） Installation Position: horizontally centered, 1.8M-2.0M away from the blackboard wall, with the
microphone panel facing the podium area, focusing on picking up the teacher's lecture in the podium
area.
4.4.2 Speaker Installation
1） Installation Height: the recommended height from the ground is 2.2M-2.4M
2） Installation Method: bracket wall mounting
3） Installation Position: The speakers are recommended to be installed on the left and right sides of
the classroom, 1/3 and 2/3 respectively. The nearest speaker is more than 3 meters away from the
microphone in a straight line. Avoid blocking in the middle to avoid affecting the microphone sound
field learning, and face the oblique rear area. Emphasis is on the complement of students in the rear
area.
Note: When using two pairs of active speakers, the audio signal can be connected to the two output
ports of the microphone SPK-OUT and AEC-OUT respectively.
4.4.3 Power Amplifier Installation
The power amplifier can be installed above the side wall door first. On the one hand, it is convenient for the
microphone lead to the power amplifier, and at the same time, it is convenient for the switch wiring. If the
on-site power amplifier needs to be placed in a cabinet, etc., the wiring can be adjusted according to the on-
site situation.
4.4.4 Socket Installation
1）When using active speakers, you can choose a socket panel with a USB socket, which can be
installed above the side door. On the one hand, it is convenient for the microphone lead to the amplifier,
and at the same time, it is convenient for the switch wiring. Active speakers can extend the 220V end
power cord to the socket.