3
Description
The MBS1000A is a dynamic, dual-imped-
ance, desktop microphone designed for
all industrial and commercial public
address and paging applications.
Features
• Uni-directional pickup pattern
• Push-to-talk or lift-to-talk operation
• Locking mechanism with push-to-talk
bar for long announcements
• Rubberized black finish with die-cast base
• Contact closure leads
Specifications
MIC Type: Desktop
Element: Dynamic
Polar Pattern: Cardioid
Impedance: Lo-Z, 500 ohms; Hi-Z, 50k ohms
(switch-selectable)
Frequency Response: 45 Hz to 15 kHz
Sensitivity*: Hi-Z: -52 dB +/- 3 dB
Lo-Z: -72 dB +/- 3 dB
Cable: 7' of 4-conductor, 2-shielded
Switch: Locking push-to-talk, lift-to-talk,
impedance selector
Dimensions: 4-
3
/8" W x 9-
3
/8" H x 5-
7
/8" D
Product Weight: 1-
1
/4 lb.
Material: ABS plastic
Finish: Rubberized black finish
* (0dB=1V/BAR 1,000 Hz indicated by open circuit)
MBS1000A - Desktop Paging
Frequency Response Graph
Polar Graph
Description
The DDU250 is a high-quality,
dynamic, gooseneck desktop micro-
phone ideal for any podium or PA
system. The gooseneck permits the
user to adjust the microphone’s angle
and height to suit the user’s needs.
Features
• Cardioid pickup pattern
• 16" long, fully flexible gooseneck
stalk that is shock-mounted to a
heavy zinc die cast base
• Push-to-lock and push-to-talk switches
• 10-foot cable with external contact closure outputs for the talk
switches
• Excellent speech intelligibility with low ambient noise
• Effective feedback control
• Low sensitivity to breath and popping sound
• Slim, compact design to minimize distraction to the user
Specifications
MIC Type: Desktop
Element: Moving coil dynamic
Polar Pattern: Cardioid
Impedance: 500-ohm
Frequency Response: 100 Hz to 12 kHz
Sensitivity*: -76 dB +/- 3dB
S/N Ratio: >65 dB
Cable: 10 ft., 4-conductor, 2-shielded
Switches: Push-to-lock and push-to-talk
Dimensions: 4-
1
/4" W x 18-
1
/4" H x 6-
1
/4" D
Product Weight: 3-
1
/2 lb.
Material: Zinc die cast
Finish: Matte black
* (0dB=1V/BAR 1,000 Hz indicated by open circuit)
DDU250 - Dynamic Desktop
Frequency Response Graph
Polar Graph