Rane THX Room EQ - Manual (Page 15)

Home THX Equalization Manual Rev. 1.5
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• Choose four positions that represent prime listening positions spaced equally throughout the
listening area (Fig. 8).
• Position your analyzer’s microphone(s) at seated ear height (38" to 48" off finished floor). Place
the microphone(s) on a stand.
• Do not attach any microphone directly to the analyzer or hold it in your hand. Your body is an
acoustical object large enough to influence what is supposed to be a room measurement.
• Label in your notes each position and note any related information (e.g., Microphone 3 located
under loft overhang) which can affect your interpretation of the measurements.
• Do not point any microphone directly at a loudspeaker. Point it straight up. You are looking for a
room measurement; not measuring the direct field of the loudspeaker.
• If you are placing a microphone on any piece of furniture (i.e., a chair or couch), make sure that
the mic is away from any cushion or seat back by at least 1 foot. This will improve the accuracy of
measurements at that position above 800 Hz.
For multiple rows of seats, see Fig. 9 below.
Mic Positions
1
2
3
4
Multiple Row Seating and Microphone Positions
Fig 9