THE PUBLIC ADDRESS
AMPLIFIER SYSTEM WITH
FLEXIBILITY BUILT-IN
BALDWIN BOXALL COMMUNICATIONS LIMITED
Wealden Industrial Estate
Farningham Road . Jarvis Brook
Crowborough . East Sussex . TN6 2JR . UK
Tel: +44 (0) 1892 664422
Fax: +44 (0) 1892 663146
website: www.baldwinboxall.co.uk
THE COMPLETE SPECTRUM OF COMMUNICATION SOLUTIONS
Low Voltage Directive 73/23/EEC as amended by 93/68/EEC
EMC Directive 89/336/EEC as amended by 92/31/EEC and 93/68/EEC
Applies only when the items are correctly fitted and operated in or with products of our manufacture
and are installed in a recommended enclosure.
This example shows a typical four-zone system (three with paging and music and one with paging only), as used in a small
office/workshop, using the M2300M which provides the following features:
L Single zone all call microphone (BDM401 with parallel option selected) – overriding all other inputs.
L Two-tone alarm signal to all zones overriding descending inputs.
L Two four zone microphones (BDM404) with three note chime overriding descending inputs. Please note that in order
to connect a Mitre amplifier to a BDM400 series microphone a converter is required (BDM400IF).
L Background music broadcast to all zones – except zone three ‘offices’.
L Local volume control for zone four which is overridden when a paging announcement is made.
A typical PA system:
Typical PA System
Zone 1
Zone 2
Zone 3
Zone 4
Alarm
CONVERTER CONVERTER CONVERTER CONVERTER CONVERTER
BDM401 BDM404 BDM404
Music Player
M2300M
BVC6: 24V
Technical Specifications
M2300M M2120E M2300S
Rated output power:
100V line 230V AC supply 300W 33 Ohms 120W 83 Ohms 300W 33 Ohms
THD 1 kHz rated output Aux input 230V AC supply Less than 0.5% typically 0.2%
Typical output power 1% THD:
Aux input 230V AC supply 340W 29 Ohms 100V line 150W 66 Ohms. Plus: 340W 29 Ohms
LowZ – 80W 4 Ohms
LowZ – 130W 2 Ohms
Output regulation(1 kHz 100V line) Better than 1 dB
Output voltages obtainable(pin selection) 50 & 100V 100V & low impedance 50 & 100V
Supply voltage AC 220-240V 50-60 Hz
Power consumption @ 230V:
Quiescent (no external DC load) 26VA 18VA 26VA
Rated output power @ 1 kHz 700VA 300VA 700VA
Fuse protection:
1 x AC supply 20 x 5 mm 6.3A(T) 3.15A(T) 6.3A(T)
2 x DC (amplifier) auto blade type 20A(F) 10A(F) 20A(F)
1 x DC aux output 2A(F) 1A self resettable 2A(T)
Aux input phono stereo summed mono:
Sensitivity 100mV @ 20K Ohms N/A
Frequency response -3 dB 40Hz-20 kHz N/A
Signal to noise ratio Better than 80 dB N/A
Tone controls:
Bass + 12 dB @ 100 Hz N/A
Treble + 12 dB @ 12 kHz N/A
Universal input (line): 2 x with priority gating
Sensitivity 0.5V @ 40K Ohms balanced
Frequency response -3 dB 80mV @ 12K balanced 40 Hz-20 kHz
Signal to noise ratio 40 Hz-18 kHz Better than 85 dB
Common mode rejection ratio 50 Hz-30 kHz Better than 70 dB Better than 40 dB typically 60 dB
Selectable high pass filter 200 Hz 12 dB/octave
Universal input (microphone):
Sensitivity 600uV balanced N/A
Input impedance:
Without phantom power 12K Ohms N/A
With phantom power 15V 660 Ohms N/A
Frequency response -3 dB 40 Hz-18 kHz N/A
Common mode rejection ratio 50Hz-30 kHz Better than 60 dB N/A
Signal to noise ratio terminated 200 Ohms Better than 60 dB N/A
System busy output Open collector 0.5A @ 40V total max. N/A N/A
Aux line output level 0 dBm transformer isolated N/A N/A
Source impedance 100 Ohms N/A N/A
Busy/restoration relay output 2 pole changeover 5A @ 100V max. N/A N/A
DC Aux output 30V @ 1.5A max.
4-zone relay output 5A@100V max. N/A N/A
LED indicators 1 per universal input Output level indicator 1 per universal input
(indicates busy state) 1 indicates 5%, 25%, 50% & 100% (indicates busy state) Output level
presence of 24V Aux supply indicator 5V 25V 50V 100V
Terminations:
AC supply input 3-pin DIN IEC 6A 3-pin DIN IEC 6A 3-pin DIN IEC 6A
Aux signal input 2 x phono, stereo summed mono 2 x phono, stereo summed mono N/A
Universal input 6-pin, screw terminated 3-pin XLR N/A
connector+ 3-pin XLR N/A N/A
Alarm trigger and 0 dB line output 4-pin, screw terminated connector
Busy/restoration relay output 8-pin, screw terminated connector N/A N/A
Loudspeaker line output 3-pin, screw terminated connector 4-pin speakon connector 3-pin screw terminated connector
Line signal inputs N/A 6-pin screw terminal connector 4-pin screw terminated connector
DC Aux output N/A N/A 2-pin crimp terminated connector
Fan assisted Yes No Yes
Dimensions (mm) (D x W x H) 340 x 430 x 132 340 x 430 x 90 340 x 430 x 132
Weight 18 Kg 12 kg 18 Kg
+44
(
0
)
1892 664422
Cert No. FM41357
BBC Mitre A46p AW 0707 14/9/07 10:36 Page 1
(7 pages)
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