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| Sleek, small design |
| The super lightweight MA 25
weighs in at only 3.6 lb/1.6kg. Small enough to hold in
the palm of your hand! Tucked into its carrying case
(included), the MA 25 is our smallest, lightest
portable. |
| Accurate, dependable
engineering |
| Because it's a portable,
the MA 25 is engineered to be tough and reliable. Take
the MA 25 anywhere with confidence. User-friendly
over-size knobs make adjusting frequency and hearing
levels easy. Easy push-button operation for right/left,
pulse tone and warble. |
| Full range of testing
possibilities |
| Although the MA 25 is
small, it still offers a full range of testing
opportunities. Frequency levels range from 250 Hz to
8000 Hz, and signal intensities run from -10 dB HL to 90
dB HL. |
| Gain new testing
flexibility |
| To provide you with more
versatile testing opportunities, the MA 25 is powered by
either a 9V battery or the optional AC adapter . Work in
the office or test on the go for maximum efficiency |
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Technical Data
| Frequency
Accuracy |
+/-
2% maximum |
| Rise
/ Fall time |
35
msec typical |
| Distortion |
.5%
typical, .3% minimum |
| Crosstalk |
-
100 dB minimum |
| On
/ Off Ratio |
90
dB minimum |
| Frequency
Modulation |
+/-
5% frequency modulating rate at 5 Hz |
| Voltage
Requirements |
9
V alkaline battery (100 hours typical) , optional AC |
| Dimensions |
9.5"
W X 3.7" H X 6.75" D
24cm W X 9cm H X 17cm D |
| Weight |
3.6
lb / 1.6 kg |
| Frequency
Range |
250
Hz to 8000 Hz |
| Hearing
Level Range |
-10
dB HL to 90 dB HL |
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| Part Number |
Part |
| 4687 |
TDH 39
headset |
| 1162-417 |
Audiogram
pad |
| 1162-483 |
Operating
manual |
| 1035-483 |
Carrying
case |
|
|
| 4695 |
Audiocup
headset |
| 1025-352 |
Patch
cords |
| 5502 |
120V AC
adapter |
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