Cleaning Information; Technical Specifications - AKG SOLIDTUBE Modo De Empleo

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Note: A gentle humming noise can sometimes occur on the audio
output due to ground loops which, as an initial remedy, can possibly
be removed with the "Ground Lift" switch by the audio output
socket on the power supply. When pressed, this switch interrupts
the connection from pin 1 of the XLR socket to the zero volt /
ground level of the power supply unit.
Should this measure provide no remedy for the interfering hum then
you must locate and remove the cause of the interference from the
rest of the sound system in the usual way.

3. Technical Specifications

Operating principle:
Directional characteristics:
Sensitivity at 1000 Hz:
Frequency range:
Electrical impedance:
Recommended load impedance:
Pre-attenuation:
Bass cut:
Equivalent noise level conforming to DIN 45405 (CCIR 468-2): 30 dB
Equivalent noise level conforming to DIN 45412 (A-weighted): 20 dB-A
Signal-to-noise ratio ref. 1 Pa (A-weighted):
Max. sound pressure for k = 3%: (pre-attenuation 0/–20 dB)
Powering:
Connector:
External dimensions:
Weight:
Gross weight incl. packaging:
This product conforms to the standards EN 50 082-1 and EN 60 065

Cleaning information:

All surfaces can be cleaned from time to time with (industrial)
methylated spirits or alcohol. The foam windscreen is best clea-
ned with a mild detergent solution and is immediately ready for
use when dry.
Large diaphragm pressure gradient microphone with vacuum tube preamplifier
Cardioid
20 mV / Pa
–34 dBV re. 1 V / Pa
20–20,000 Hz ± 2.5 dB from published curve
200 ohms ± 25%
1000 ohms
Switchable to 0 dB and –20 dB
At 100 Hz 12 dB / octave, can be switched-on on the mains unit
74 dB
63 Pa
130 dB SPL / 355 Pa
With the delivered N-SOLIDTUBE power supply unit via 115 / 230 VAC
6 pin XLR
63/57 Ø x 219 mm (2.5/2.25 Ø x 8.6 inch)
920 g (2 lbs.) net
5.0 kg (11 lbs.) incl. accessories and travelling case
145 dB SPL
5

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