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Alesis MultiMix 4 USB Four-Channel USB Mixer

4.2 out of 5 stars 122 customer reviews
| 44 answered questions

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  • Four-channel mixer with digital output
  • Low-noise digital 16-bit, 44.1 kHz signal on USB for easy computer interface
  • Two channels of XLR inputs with gains and switchable 48V phantom power
  • High-impedance guitar input
  • Main and headphone outputs with independent level controls
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Product Description

Product Description

Desktop audio, solved. The MultiMix 4 USB is a four-channel desktop mixer with a USB digital audio interface built in. This compact mixer is perfect for using in basic computer-recording setups, video editing and production studios, and portable podcasting setups because it 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. The MultiMix 4 USB mixer has four input channels, all of which can accept a 1/4" line input. You can 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. The MultiMix 4 USB has a two channel, five stage, multicolor LED meter for visual monitoring the main output level. A stereo, 1/4" headphone output has its own level control.

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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

  • Inputs:
    • Line (CH 1, 2): 10 KΩ input impedance 5.5 mV ~ 4.9 V RMS sensitivity for max output
    • Mic (CH 1, 2): 600 Ω input impedance balanced 700 mV RMS sensitivity for max output
    • Line (CH 3, 4): 700 mV RMS sensitivity for max output
    • HPF (CH 1, 2): 200 Hz (-1 dB), 80 Hz (-3 dB), 20 Hz (-24 dB)
    Outputs:
    • Line: 7 V RMS max
    • Headphone: 0.5 W into 47 Ω
    Signal-To-Noise Ratio:
    • Line: > 92 dB
      (max output; JIS A-weighted) Mic: > 62 dB
  • Distortion: < 0.02%
  • Frequency Response:
    • Line: 20 Hz - 20 kHz (± 0.5 dB)
    • Mic: 20 Hz - 15 kHz (± 0.5 dB)
  • Channel Equalizer:
    • Bass: ± 14 dB @ 80 Hz
    • 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)

Product Information

Item Weight 1.8 pounds
Product Dimensions 6 x 7.1 x 1.1 inches
Shipping Weight 3.2 pounds
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Shipping Advisory This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
ASIN B001T9O5VG
Item model number MultiMix 4 USB
Customer Reviews
4.2 out of 5 stars 122 customer reviews

4.2 out of 5 stars
Best Sellers Rank #30,082 in Musical Instruments (See Top 100 in Musical Instruments)
#96 in Musical Instruments > Recording Equipment > Mixers & Accessories > Mixers > Unpowered
Date first available at Amazon.com October 2, 2001

Warranty & Support

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Pros: Great value-- 2 channel mixer, interface, preeamps w/ phantom power all-in-one for around $80. You can even record a drum kit (I use two matched pencil condenser mics) using the two channels and get pretty good results. Also, the metal case feels pretty durable.

Cons: You might be one of the many who will have to overcome the noise issue (see below). Also, there are no "Mid" EQ knobs, just "Lo" and "Hi."

**Noise Issue Solution**

After desperately trying to find the magic gain, level, and headphone volume setting combination to get rid of the pesky noise issue, I turned to the audio properties of my Windows 7 laptop, which was the key to the solution..

So, right click on the speaker icon in the taskbar > Select "Recording Devices" > Select the "Recording" tab. Ensure the checkmark is on "3-USB Audio Codec."

Now, right click on the "3-USB Audio Codec" option and select "Properties." Go to the "Levels" tab. Set the microphone level all the way down (I have mine set to 5) and voila, you can now comfortably adjust the gain, level, and headphone volume knobs on the Alesis interface with ease, and your recordings and monitoring should no longer be plagued with a nasty noise.
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Use it for camtasia and webex recordings with USB audio to the computer and send a main out to a video camera as a line level to the video camera. USB audio levels are consistant across the many pc I've used it with; this is more a function of the Windows driver, but a relief because dell laptop soundcards suck and I'm thrilled to be able to bypass them. If you barely let your levels hit unity on the board indicator, then you'll get maximum levels on the computer input, but be careful... the instant it slightly flickers into the yellow then you will be clipping your audio. This USB audio gives low noise floors which is nice when bypassing crappy laptop soundcards.

con: no aux send, but you could use the phone jack as an alternate output to a laptop or other device that requires mic levels and use a left or right main out for headphones.

If know I only need two mic inputs and can get away without a Mackie - I love using this Alesis.
Solid metal build and light weight.
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In general, I like it, but it has warts. The biggest issue, which was mentioned differently in other reviews was the hum & noise when you're monitoring a live recording through headphones. The weird thing is that this noise doesn't appear on the finished digital file. Since I'm not taking this into the field, I'll live with this odd behavior because the other features be the heck out of all of the other USB mixers in this price range (here's a hint: there aren't any, or at least their weren't any when I bought this). Before I got my cushy desk job, I moonlighted as an A2 so part of me wants to cringe at the noise in my headset; however, in an earlier life I worked with the old Hitachi HR100 1" VTRs, and they had the same problem except for about 100 times more money. I can live with this, and it gets a 3 only because of the monitoring issue...otherwise this little baby excellent.
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I believe this is the first occasion ever when I have spent the time to write a review (albeit a brief one). Although I use other people's reviews on a very regular basis to guide my purchases, I never have felt that I had compelling opinions or interesting insights that differed in any significant way from what was already posted. However, for this piece of equipment I do have a comment which I think is of use. Basically this unit is a great deal for what you pay. If you need to get music into your computer in a simple and faithful way, this product can be of great use. As a musician I generally record voice and guitar together but wanted to maintain them isolated on separate channels to easily manipulate them for some post recording polishing. All I have to do is to set up two tracks with separate inputs selected for each and then pan both tracks in opposite directions on the mixer. I use Garageband and it works flawlessly. Because I am using the pickup on the guitar (yes, I know I pay a price in sound reproduction) and another for the mic, my channels come out pretty darn bleed free.

The hiss: I, too, was first a victim of this ugly interference and was ready to be very upset with the product. However, instead of whining about it, I started to try to isolate the sound. What I eventually came up with was that I could totally eliminate it by turning down the master and phones volume and simply telling the computer that I wanted to monitor the who shebang through the headphone jack on the Mac. The sound went from crappy to very nice immediately. Hey, if you want a $500 mixer, I am sure it will sound a bit better than this unit, but that is a whole other story. This is plenty for a singer-songwriter type who is not a wannabee sound engineer.
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For several years (and several computers) I've been using an original Midiman Audio Buddy preamp and Roland USB audio interface for my computer recordings. The Audio Buddy is still a great preamp, but the Roland is a bit long in the tooth, and never delivered really great audio. It also had a number of annoyances, like bleeding the input audio to the output channel. I've been looking at audio/USB interfaces for a while and only recently noticed the Alesis MultiMix4. The company does have a great reputation, and I've owned Alesis mixers in the past. I was a bit concerned about the noise problem that some of the reviewers mentioned, but others said this could be overcome with proper settings. I also considered getting the cheaper Behringer 302USB Premium 5-Input Mixer with XENYX Mic Preamp and USB/Audio Interface, but my experience has been that Alesis makes a far better quality product than Behringer that's well worth the small price difference. As a plus, the Alesis came with a good half-amp power supply, instead of trying to pull all the current it needs from the USB interface. That makes a big difference when you're dealing with high signal levels and driving a set of headphones at the same time.

My first impression on unpacking the MultiMix4 was that unit gave up nothing in terms of traditional Alesis solid construction. The steel case alone is, I think, worth the difference in price over the Behringer. Some reviewers have said that the knobs are flimsy, but as far as I can tell the same knobs I remember from the Alesis mixers I've owned. Hookup to my iMac was easy- the iMac immediately recognized the Alesis and assigned a standard USC CODEC that worked perfectly.
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