Datasat RS20i Specifications download pdf (Page 43)

RS20i Installation and Operating Guide Page 43

RS20i Installation & Operating Guide Document # 9301H52900 Ver. 1.01

Note: Be sure to open the curtains (if any) at the front of the theater.

Figure 23. Suggested Microphone Placement in Small Theater

 Use a single calibrated microphone located in the center seating position.

2.10.1 Set levels to establish a baseline

 In the theater, confirm that all amplifiers are ON, mute is OFF, and masking and curtains

(if equipped) are opened.

 Use a high-quality, calibrated SPL meter in the theater.

Setup (System) > Inputs > Audio Levels

 Set the Volume control to -15dB. This is the standard reference level.

 Run Pink Noise on each channel, one by one.

 First, by adjusting the amplifiers, try to achieve the baseline levels. Set the SPL levels

according to the chart below.

Note that SPL readings should be measured un-weighted, or C-weighted, with the meter set

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 139 140

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Datasat RS20i Specifications Page 43