Perfect for using in basic computer-recording setups, video editing and production studios, and portable podcasting setups, the Alesis MultiMix 4 USB outputs not only line-level analog audio but also stereo 16-bit, 44.1 kHz digital audio over USB for low-noise, easy computer connection. You can also monitor back from your computer through the same USB connection.

Alesis MultiMix 4 USB portable mixer (see larger image as well as schematic of controls).

The MultiMix 4 USB mixer has four input channels, all of which can accept a 1/4-inch line input. You can plug XLR microphones into channels one and two, including condensers thanks to the mixer's switchable 48V-phantom power supply. You can also plug a guitar or bass directly into channel one's switchable high-impedance input. Channels one and two offer switchable high-pass filtering at 75Hz to eliminate low-frequency rumble, handling and wind noise. Each channel has an independent pan control and channels one and two provide high and low-shelving EQs. Channels one and two have independent gain trims, while channels three and four are configured as a stereo pair at the level and pan controls.

Key Features

• Four-channel mixer with USB stereo input and output
• Low-noise digital 16-bit, 44.1 kHz signal on USB for easy computer interface
• Four 1/4-inch line-level inputs plus RCA tape in/out
• Two XLR mic inputs with gains, high-pass filters, and switchable 48V phantom power
• High-impedance guitar input
• Dual-band EQ on mic inputs
• Multicolor LED metering
• Main and headphone outputs with independent level controls

Specifications

Specifications

* Inputs:
o Line (CH 1, 2): 10 KΩ input impedance 5.5 mV ~ 4.9 V RMS sensitivity for max output
o Mic (CH 1, 2): 600 Ω input impedance balanced 700 mV RMS sensitivity for max output
o Line (CH 3, 4): 700 mV RMS sensitivity for max output
o HPF (CH 1, 2): 200 Hz (-1 dB), 80 Hz (-3 dB), 20 Hz (-24 dB)
Outputs:
o Line: 7 V RMS max
o Headphone: 0.5 W into 47 Ω
Signal-To-Noise Ratio:
o Line: > 92 dB
(max output; JIS A-weighted) Mic: > 62 dB
* Distortion: < 0.02% * Frequency Response: o Line: 20 Hz - 20 kHz (± 0.5 dB) o Mic: 20 Hz - 15 kHz (± 0.5 dB) * Channel Equalizer: o Bass: ± 14 dB @ 80 Hz o Treble: ± 14 dB @ 12 kHz * Channel Fader Kill: > 90 dB @ 1 kHz
* Crosstalk: > 85 dB @ 1 kHz
* Interface: USB1.1 or higher (stereo in and stereo out)
* Power Adapter: 10 V AC, 500 mA
* Weight: 1.5 pounds
* Dimensions: 7.75 x 6 x 2 inches (LxWxH)