Audio Technica AT8681 Specifications
AT8681 |
electronics |
UniMix® 2-to-1 Microphone Combiner with Balance Control
Features
•Combines the output from two microphones into one channel
•Continuously variable balance control
•Professional XLR-type input/output connectors
•Can be installed anywhere in-line, either at the mixer input or near the microphone
•24V to 48V DC phantom power and balanced cables required for operation
•Permits phantom voltage to pass on to the microphone
•Rugged steel housing, compact size
Description
The AT8681 UniMix® is part of the UniTools® group of phantompowered in-line microphone accessories. It combines the output from two microphones into one channel. A continuously variable balance control allows the two input sources to be mixed. Applications for the UniMix® include expanding the input capacity of mixers, combining two microphones to send signal down a single cable where it is difficult to run a second cable, and combining microphones on similar instruments to minimize the number of cables on stage. Designed to operate with balanced audio lines, the UniMix® requires 24V to 48V DC phantom power and will pass phantom power to the connected microphones. Featuring a rugged steel housing and XLR-type input/output connectors, the UniMix® can be installed anywhere in-line, either at the mixer input or near the mic.
Architect’s and Engineer’s Specifications
The phantom powered in-line microphone combiner shall allow for the outputs of two independent balanced line condenser or dynamic microphones to be combined into a single microphone level input. It shall incorporate a continuously variable mixing (balance) control to vary the mix of the two input sources. It shall have a frequency response of 20 Hz to 20,000 Hz and a unity gain. The combiner shall operate from an external 24V to 48V DC phantom power source and shall be capable of passing phantom power up to the connected microphones. Maximum input level for either input shall be +15 dBV (1% T.H.D. at 1 kHz) and the device shall have a self-noise of -115 dBV. Input impedance shall be 10,000 ohms and the output shall be low impedance balanced
(250 ohms). Inputs and outputs shall be via standard 3-pin XLR-type balanced connectors. The unit shall be 130.0 mm (5.12") wide, and 60.0 mm (2.36") deep, and 44.0 mm (1.73") high. Weight shall be 250 grams (8.8 oz). Construction shall be of metal with a black finish. All connections and controls shall be located on the top panel and labeled as to function. Mounting tabs with screw holes shall be provided for attaching the unit to a vertical or horizontal surface.
The Audio-Technica AT8681 is specified.
Specifications |
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Input/Output connectors |
XLRF/XLRM-type |
Phantom power |
24-48V DC, 2-4 mA typical |
Frequency response |
20-20,000 Hz |
Gain |
Unity (0 dB), +0/-1.5 dB |
Input impedance |
10,000 ohms |
Output impedance |
250 ohms |
Maximum input level |
+15 dBV (1% T.H.D. at 1 kHz) |
Maximum attenuation |
33 dB at 1 kHz |
Noise (A-weighted) |
–115 dBV typical |
Weight |
250 g (8.8 oz) typical |
Dimensions |
130.0 mm (5.12") W x |
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60.0 mm (2.36") D x |
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44.0 mm (1.73") H typical |
Notes |
UniMix® specifications measured at 48V |
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phantom power, 150 ohms input load and |
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100,000 ohms output load. |
In the interest of standards development, A.T.U.S. offers full details on its test methods to other industry professionals on request.
Specifications are subject to change without notice.
Audio-Technica U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224 |
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Audio-Technica Limited, Old Lane, Leeds LS11 8AG England |
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©2010 Audio-Technica U.S., Inc. audio-technica.com |
0001-0232-00 |
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