L-Acoustics MTD Series, Руководство оператора

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L-ACOUSTICS MTD Manual V1.2 11/30/2004
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2.4 POWERING MTD115b (ACTIVE MODE)
Continuous (rms) and peak power handling ratings for the MTD115b in active mode are as follows:
LF Section: 46 volts rms long term (pink noise with 6 dB crest factor)
265 Watts (continuous), 1060 Watts (peak) at 8 ohms
HF Section: 35 volts rms long term (pink noise with 6 dB crest factor)
150 Watts (continuous), 600 Watts (peak) at 8 ohms
Recommended power amplifier specification for powering single and multiple MTD115b enclosures in
active mode are given in Table 10.
Table 10: Load and Power Ratings for MTD115b (active mode)
MTD115b (ACTIVE MODE) ENCLOSURE RATINGS
ONE MTD115b (ACTIVE) TWO MTD115b (ACTIVE) THREE MTD115b (ACTIVE FOUR MTD115b (ACTIVE)
SECTIO LOAD RMS PEAK REC'D LOAD RMS PEAK REC'D LOAD RMS PEAK REC'D LOAD RMS PEAK REC'D
LOW 8 265 1060 530 4 530 2120 1060 2.7 795 3180 1590 2 1060 4240 2120
HIGH 8 150 600
600
4 300 1200
1200
2.7 440 1760
1760
2 600 2400
2400
Based on these specifications, recommended L-ACOUSTICS LA power amplifier specifications and
MLS switch settings are summarized below in Tables 11 and 12.
Table 11: Recommended power amplification and MLS switch settings for MTD115b low section
MTD115b LOW SECTION AMPLIFIER OUTPUT POWER
REC'D POWER (MLS SETTING)
LOAD POWER LA15a LA 17a LA 24a LA 48a
(ohms) (W)
2 2120 do not use 1200 1700 2400
(0 dB) (0 dB) (-2 dB)
2.7 1590 do not use 1080 1635 1665
(0 dB) (0 dB) (-4 dB)
4 1060 600
840 1300 1000
(0 dB) (0 dB) (-2 dB) (-4 dB)
8 530 370 430 700 520
(0 dB) (0 dB) (-2 dB) (-4 dB)