AKG Acoustics specifications 58E/D 58E Black, Noise Cancelling Dynamic Microphone Description

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

Impedance at 1 kHz: 240 ohms

Recommended load impedance: Greater than 500 ohms

Sensitivity:0.72 mV/Pa; -63 dB (re 1 V)

Sound pressure level for 1% THD: 130 dB (50 Pa)

Hum sensitivity: -131 dBm (1 mG field)

Environmental operating range:

Temperature: 14° F to 140° F (-10°C to + 60°C)

Maximum relative humidity: 90%

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)
Shipping weight:	5.3 oz. (150 g)
Optional accessory:	W 32 windscreen

Features

•High rejection of distant sound sources

•Hypercardioid pattern for pickup of near sources within 2” (5 cm)

•Unusually compact and lightweight