Arraying Mtd Enclosures; Figure 19: General Guidelines For Aiming Mtd Enclosures; Figure 20: Spl Mappings At Octave Band Frequencies For A Single Mtd Enclosure - L-Acoustics MTD Series Operator's Manual

5.3 ARRAYING MTD ENCLOSURES

Figure 20 shows SPL mappings at octave band frequencies for a single MTD enclosure (generated
using CATT-Acoustic modeling software), demonstrating the evenness of coverage and single point
source behavior that is obtained using coaxial technology.
Note: For color versions of figures 20, 21, 22 and 24 please see the MTD manual PDF file that is available
for download from www.l-acoustics.com
125 Hz
1 kHz

Figure 20: SPL mappings at octave band frequencies for a single MTD enclosure

Figure 21 shows SPL mappings at octave band frequencies for two MTD enclosures with a spacing of
0.5 meters. Uneven coverage above 500 Hz demonstrates the comb filtering interference effects that
arise due to path length differences as a function of listener position.
L-ACOUSTICS MTD Manual V1.2

Figure 19: General guidelines for aiming MTD enclosures

250 Hz
2 kHz
11/30/2004
500 Hz
4 kHz
40