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Theater with 2,000 seats



Purpose of installing AFC
1. Extending reverberation time for Reverberance
2. Increasing sound pressure level for Loudness
3. Exchanging the sound energy between stage and audience area for Uniformity
4. Improvement of Stage acoustics
5. Improvement of the sound field in Under balcony area



System Confuguration







System Diagram







System Components

No.
Description
Specification
Model
QTY
1
Microphone
e.g.
Miniature Boundary-Layer Capsule
Frequency range: 20 Hz - 20 kHz
Sensitivity: 19 mV/Pa
Equivalent noise level: A-weighted: 12 dB-A ,CCIR: 23 dB
Signal-to-noise ratio (A-weighted): 82 dB-A
Maximum SPL(0.5% THD): 128 dB
-
16
2
Head amp & AD
24-bit linear, 128-times oversampling
Frequency response –3, +1dB, 20Hz-20 kHz, GAIN –62 dB
Dynamic Range 110 dB
Hum & Noise Level –92 dB
AD824
2
3
Sound field processing

AFC1
2
4
Output control section

AFC1
2
5
Digital I/O card

MY8-AE
4
6
Analog output card

MY8-DA96
8
7
Power amplifier
Output level 100 W*6ch
THD+N <0.2%
S/N Ratio 100 dB
Channel separation >60 dB
XM6150
10
8
Loudspeaker
e.g.
Frequency Response 60Hz-16kHz
Power Rating program/peak 300/600
Imp 8Ω
SPL(1W,1m) 97dB
-
58
9
Control panel
Power ON/OFF
System ON/OFF
Sound field pattern 6
Liveness 1-8
Custom
1

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