IMPORTANT SAFETY INSTRUCTIONS - READ FIRST This symbol, wherever it appears, This symbol, wherever it appears, alerts you alerts you to the presence of uninsulated to important operating and maintenance dangerous voltages inside the enclosure that instructions in the accompanying literature. may be sufficient to constitute a risk of shock.
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OVERVIEW The ART USBMIX4 Microphone, Instrument, and Line Mixer/Computer Interface is a compact versatile audio interface for your computer that converts analog signals from a variety of audio sources to a digital signal that your computer recognizes. It can also be used as a standalone mixer through the main mix outputs.
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Operation and Connections USB jack (type B): For connecting to a computer using the included USB 2.0 cable. When connected to a computer, the computer supplies power to the mixer and audio data can be sent between the mixer and computer. Note: Please do not connect any device to this USB jack other than a personal computer or tablet devices.
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Note: Turn the level knob to minimum before toggling the [GAIN] switch on and off Otherwise, noise may be produced. Stereo output (Phone jack, unbal.) for connection of an amplifier or another unit, e.g. a second mixer. Stereo output: Used to connect to another mixer or recorder. The signal output from this jacks is not affected by the [ TO PC ] slide switch or the MAIN MIX[ ] knob.
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Level control for USB playback. POWER switch of the mixer. POWER ON indication. USB recording level meter: If the level of the audio sent to the computer exceeds -20dBV, the green led light up; If the level reaches 3dB before clip level, the red led light up. To send an appropriate audio level to the computer, adjust the audio level of each channel until the green led remains lit and the red led flashes only momentarily when there is an extreme audio level present .
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the mixer is switched off or the output controls are set to “0”. 5) -Connect mono sources with the line level to the unbalanced 1/4" jacks. It is also possible to directly connect musical instruments of high impedances (electric guitar, electric bass) to channel CH-2 jacks: in this case press the button for impedance switching for the channel.
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Mixing audio sources The following steps merely serve as an aid, other ways of procedure are also possible. 1) As a basic setting first: a. Set all controls GAIN, EQ and PAN to mid-position. b. Turn all control LEVEL back to the left stop. 2) To adjust a mono channel to an optimum level, feed an audio signal to the channel and turn up its control LEVEL approximately to mid-position.
45mm x 130mm x 191mm Weight 1.56 lbs. (.71 kg) Note: 0 dBu = 0.775Vrms ART maintains a policy of constant product improvement. Therefore, specifications are subject to change without notice. www.artproaudio.com Go to for the latest information and support.
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