Northern Airborne Technology AA20-431 - Manual (Page 8)

SM22 Rev. 4.10 AA20-431 Cabin PA System Manual
Speaker: 25 W into 8 Ω @ <10% THD
20 W into 8 Ω continuous power with single tone
35 W max @ 26.6% THD into 8 ohms with 1 Vrms
into music input and music and speaker trim pots
fully clockwise.
28 Watts max. @ 10% THD into 8 Ω with 1 Vrms
into the music input.
Impedance and short circuit protected
Audio Bandwidth: Mic channel – <3 dB, 350 Hz to 3 kHz
Music channel – <3 dB, 150 Hz to 9 kHz
Signal-to-noise ratio – 65 dB
Chime: Fixed rate, adjustable level
Miscellaneous:
Temperature Sensor: The unit contains a temperature sensor IC
which when triggered reduces the input signals
by 3 dB
The IC threshold is set to approximately 129 ° C
1.4.2 Physical
Specifications
Height: 1.12 ″ (28.45 mm)
Depth: 7.25 ″ (184.15 mm) max.
6.52 ″ (165.61 mm) behind faceplate
Width: 5.75 ″ (146.05 mm) max.
5.00 ″ (127.00 mm) behind faceplate
Weight: 1.3 lbs (610 g)
Mounting: Unit fits standard Dzus rails
Note: requires rails for maximum heat
dissipation
Finish/Material: Chassis & cover are 5052-H32 brushed
aluminum with chromate conversion. Heat
sinks are 6063-T6 aluminum with chromate
conversion
Connectors: Male filtered 37 pin D-subminiature with
Positronics V5 locking tabs.
Apr 21, 2004 Page 1-3
ENG-FORM: 800-0107.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.