LightSpeed Technologies 850iR Ir Sensor Installation, HelpfulHint, 8 5 0 i R U s e r M a n u a l

8 5 0 i R U s e r M a n u a l

3. IR SENSOR INSTALLATION

Sensor location is very important for optimum performance of the 850iR Classroom Audio System.

•BEST: On the ceiling at or near the middle of the classroom.

•GOOD: High and centered on the long wall.

•AVOID: Locations in corners, on walls at heights lower than 7 feet, or in places where the line of sight is or could be obstructed.

Best placement

Good placement

Avoid!

Helpful Hint

Before adjusting the graphic equalizer refer to the intial set-up on page 22.

Sometimes fine-tuning is required to eliminate feedback.

Fine-tuning the Graphic Equalizer:

1.Slide up and flip down the EQ cover door.

2.Walk the room listening for feedback (squealing).

3.Lower the 2K5 and/or 4K sliders if a high-pitched ring is present.

4.Lower the 400 and/or 700 sliders if a low-pitched ring is present.

5.Reduce volume if feedback is still present.

850iR User Manual 14