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Mackie U.420 , this item is no longer available, below are some similar products you may be interested in.

Mackie U.420

4-channel Stereo Line Mixer with 24-bit/96kHz FireWire I/O, Built-in DI Box, and Tracktion 3 Production Software
Item ID: U420
Sorry, the Mackie U.420 is no longer available. We've left this page up for reference only.
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Mackie U.420
Mackie U.420
Mackie U.420

An Intuitive Stereo Line Mixer from Mackie!

This article was Written By

Our Product Research Team

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The Mackie U.420 is a part of Mackie's new U.Series mixers, offering an advanced set of features, yet designed from the ground up to be intuitive, and easy to use - both on stage and in the studio! It connects to your computer via FireWire, delivering 24-bit/96kHz resolution for your computer-based recording needs, and offering four stereo line level inputs. The Mackie U.420 also has an RIAA phono preamp for your turntables, a 3-band active EQ, aux sends, and a built-in DI box for your guitar or bass. Plus, with the micro-master section dead center, you can comfortably control your channels on-the-fly with the Mackie U.420.

Mackie U.420 at a Glance:
  • Powerful, compact mixer
  • Great recording and performance tool
  • Makes an excellent keyboard submixer

Powerful, compact mixer
If you have line-level needs and are looking for a small-format mixer to take charge of them, you've come to the right place! The Mackie U.420 offers four stereo line channels, complete with 3-band active EQ. Plus, you can use the first channel in mono with your guitar or bass - it actually acts as a DI box, so incorporating instruments into your setup is no sweat. Plus, there's an RIAA phono preamp so you can hook up your turntables, and a convenient FireWire output (in addition to stereo main and aux outputs) so you can get recording straightaway.

Great recording and performance tool
With a FireWire output onboard, there's no doubt the U.420 is an excellent recording tool. What you may not know just from looking at it, is that it has features built into it to compensate for latency. Its headphone output is wired before the main volume knob that controls your main monitors - so if you turn down your monitors, and turn up your headphones you can easily overdub. And, when you play live through the analog inputs, and mix within software, everything will blend at the main output - but there's also a clever FireWire "loop-thru" button. When engaged, it routes all of your inputs, as well as the feed from your DAW right back to the computer, so you can simultaneously record a live stereo mix of your set. And, if that's not enough, the U.420 also comes with a copy of Tracktion 3 music production software.

Makes an excellent keyboard submixer
Of course, with its four stereo line inputs, the U.420 makes a stellar keyboard submixer, giving you all the intuitive controls you need to sculpt your sound with a stereo aux output for your monitors, and a main stereo out for the PA.

Mackie U.420 Features:
  • 4-channel stereo line mixer
  • 24-bit/96kHz FireWire I/O
  • Simple, modern design
  • 4 high-headroom stereo line inputs
  • Built-in DI box
  • RIAA phono preamp
  • 3-band active EQ
  • Stereo Aux Send
  • Self-mono-ing outputs
  • Headphone out with separate level control
  • Large main volume knob and high-res metering
  • Separate FireWire input level and control
  • FireWire loop-thru switch
  • Tracktion 3 Project Bundle software included
The Mackie U.420 mixer is ready for both the studio and the stage!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

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  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
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Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.