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Crossover Section; Amplifier Section; Acoustic Section - Alesis M1 ACTIVE Reference Manual

Biamplified reference monitor
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Crossover section
Crossover type:
Eighth order,4SdB/octave Linkwitz-Riley @
1500H2
Inputtnpedance:
20kQbalanced l0kOunbalanced
Low Frequency Filter:
2nd order optimal Q high pass filter at 50Hz
with +ldBboost
Amplifier
Section
Low Frequency Amplifier
Ratedpoweroutput
75watts,6O load
Distortion:
<0.03% THD @ 30 watts/8f,! 20}lz-20kllz
Slew rate:
19vlpsec
Signal-to-Noise ratio:
>1 10d8 refermced to 60 watts @ 8A ,
' A"
weighted lkHz
High Frequenty Arnpllfler
Rated Power Outpu*
25 watts, 4O load
Distortion:
0.06% THD @ rated power
Slewrate:
9Y/ltss
Signal-to.Noise ratio:
>1.12dB @ rated output
Acoustic Section
Free-FieldFrequencyResponse: LZdB,SOHzto20KHz
LowerCutoff Frequency:
38Hz -10dB
Upper Cutoff Frequency:
23.5KHz -10d8
Maximum Peak SPL per pair:
> 118dB SPL @ lm
Maximum short term SPL:
80Hz to 3.0KHz > 105dB SPL @ 1m
General
Power Consumption:
120 watts with musical program, loud mix
12 watts quiescent (idle)
AC Dropout Voltage:
120V AC version: 80V AC
240V AC versions: 160V AC
Weight
19.51bs. (8.9 kg) each
Dinensions (H x W x D):
15" (381mm) x 8.5" (215mm) x 9.75" (2rf8mm)
Ml ACTN'E
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