D 58E/D 58E Black
Noise Cancelling Dynamic Microphone
Description
This noise cancelling microphone is a gradient model
which has its diaphragm assembly tuned to a mid-range
frequency. As such, the D 58 E will give fairly flat response to
near sources (due to proximity effect rise at low frequencies)
while exhibiting a strong mid frequency and bass roll-off for
sounds arriving from a distance. It is necessary that the
microphone be addressed at distances no greater than about
2 inches (5 cm) for the speaker’s voice to be clear and
natural. The microphone is quite small and can thus be used
at very short working distances without disturbing the user.
In addition, the close-in response of the microphone
exhibits a broad rise in the mid-range between 1 and 5 kHz
in order to improve speech intelligibility when the microphone
is used in noisy environments. The D 58 E is rugged,
lightweight, and operates well over a wide range of both
temperature and humidity.
The Model D 58 E Black is the same as the D 58 E except
for a black finish.
Specifications
Transducer type:
Dynamic pressure gradient
Frequency response 70 Hz to 10 kHz, 3 dB
Polar pattern: Hypercardioid
Features
Impedance at 1 kHz: 240 ohms
Recommended load impedance: Greater than 500 ohms
• High rejection of distant sound
sources
• Hypercardioid pattern for pickup of
near sources within 2” (5 cm)
Sensitivity:
Sound pressure level for 1% THD: 130 dB (50 Pa)
Hum sensitivity: -131 dBm (1 mG field)
0.72 mV/Pa; -63 dB (re 1 V)
Environmental operating range:
Temperature: 14° F to 140° F (-10°C to + 60°C)
Maximum relative humidity: 90%
• Unusually compact and lightweight
Size:
0.8” (20 mm) diameter
1.6” (42 mm) length
Materials:
Case: nickel-plated bronze;
Sound Entry: sintered bronze screen
and wire mesh grille
Net weight:
1.4 oz. (40 g)
5.3 oz. (150 g)
Shipping weight:
Optional accessory: W 32 windscreen
|
3Com Speaker NCG PLM User Manual
3Com Switch 3C16895 User Manual
3Com Video Game Controller 6046 User Manual
AG Neovo Indoor Furnishings AG 01 User Manual
Agri Fab Lawn Sweeper 45 0337 User Manual
Aiwa Speaker System UZ US301 User Manual
Amana Microwave Oven AMC2206BA User Manual
AMC Water System FM DWS 1500 User Manual
Audiovox Automobile Alarm PRO 9549FT User Manual
Bakers Pride Oven Oven D 125 Single User Manual