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A handy range of microphone accessories, with balanced XLR inputs and outputs, powered by 24–48V phantom power, each housed in a rugged metal case with surface- mounting flanges. AT8681 measures 130(w) ×44(h) ×60(d)mm; AT8684 130(w) ×35(h) ×60(d)mm including flange and knobs.

AT8681 UniMix

Combines two microphones into one output, with a balance control which attenuates each input by 6dB at the midpoint. Frequency response: 20Hz-20kHz, Input impedance: 30k ohms, output impedance: 250 ohms, Max input level: + 15dBV, Max attenuation: 33dB (1kHz).

AT8684 UniMute

A versatile attenuator which can be controlled by an external single-pole switch (not supplied), to provide on/off, push-to-talk or push-to-mute switching, according to wiring. Frequency response: 20Hz-20kHz, input impedance: 5.3k ohms, output impedance: 500 ohms, Max input level: + 17dBV, muting attenuation: 57dB at 1kHz.

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AUDIO-TECHNICA AT8681 UNIMIX Two to one microphone combiner   Stock code: 20-711
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AUDIO-TECHNICA AT8684 UNIMUTE Microphone attenuator, switched   Stock code: 20-714
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