Specifications

18 | Coach Audio
MAS Head Station 02
The MAS head station 02 can accommodate up to
eight audio sources and distribute them to a maximum
of four trunk lines. Up to 25 seat modules can be
connected to each of these trunk lines.
Other features:
Unrestricted installation position
Variable design options for the MAS according
to vehicle requirements
Uniform volume level due to integrated gain setting
Operating voltage: 24 V
Operating temperature: –10 °C to +55 °C
Dimensions (W x H x D): 213.0 x 50.0 x 217.5 mm
Weight: 1,400 g
Standards: CE, FCC, RoHS
MAS Seat Module
Passengers can use the MAS seat module to select their
own individual program of radio, CD or TV/video sound
from eight different audio channels. All the available
channels can be seen on the digital display and selected
by the passenger at the touch of a button at their own
individually selected volume.
Other features:
Unrestricted installation position, click-in and screw-in
Connection option for conventional headphones to
the audio jack
Improved water resistance for long life
Operating voltage: Power supply from
MAS Head Station 02
Operating temperature: –20 °C to +70 °C
Dimensions (W x H x D): 54.7 (77.0) x 35.7 x 20.0 mm
Standards: CE, E1, FCC, RoHS, WEEE
With the Multi-channel Audio System (MAS) from Bosch, passengers are individually
entertained with up to eight stereo programs. A central distribution station, the MAS Head
Station 02, uses a MAS distributor and MAS terminating resistors to supply up to 100 seat
modules with media contents so that each passenger can enjoy his or her own personal
entertainment.
MAS – Multi-channel Audio Systems
Bosch speakers provide for clear announcements, impressive video sound and
inspiring music enjoyment. The different versions are available in several different
sizes, colors and installation depths to accommodate individual needs.
Speakers
AL 100
AL 120 AL 130
Max. load 25 W 30 W 50 W
Sensitivity 87 dB 87 dB 88 dB
Frequency response 80 – 20,000 Hz 70 – 20,000 Hz 70 – 20,000 Hz
Installation depth 44 mm 28 mm 50 mm
Diameter 100 mm 114 mm 115 mm
Nominal resistance 4 Ω 4 Ω 4 Ω 8 Ω 4 Ω 4 Ω
Diameter with grille 135 mm
without
grille
152 mm 165 mm
without
grille
Grille color black gray black
Packaging unit 2 pcs 36 pcs 16 pcs 16 pcs 2 pcs 24 pcs
Speakers
Coach Audio | 19