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Rolls MX422 4-Channel Professional Field Audio Mixer

BH #ROMX422 • MFR #MX422
17 reviews
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Rolls MX422 4-Channel Professional Field Audio Mixer
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Rolls MX422 Overview

  • 1Description
  • 2Four Inputs / 2 Outputs
  • 3Main and Backup Power
  • 4Low-Cut Filter
  • 5Built-In Limiter
  • 6Calibrated VU Meters
  • 7Switchable 48V Phantom Power

The Rolls MX422 is a 4-channel professional field mixer designed for Electronic Field Production (EFP), Electronic News Gathering (ENG), video, and more. The mixer includes a feature set that meets the demands of the professional field audio engineer while remaining at a modest price point. The MX422 features 4 balanced XLR inputs that are capable of accepting line level or microphone signal. The stereo XLR outputs feature a -30 dB pad switch for feeding low impedance inputs. Additional features include a low-cut filter switch for minimizing low-frequency noise and a built-in limiter for controlling noise cause by excessive levels.

Four Inputs / 2 Outputs
The MX422 features 4 servo-balanced XLR inputs and 2 transformer-balanced XLR outputs.
Main and Backup Power
Main and backup battery compartments are featured to ensure constant power without loss.
Low-Cut Filter
Switchable 100 Hz low-cut filters are featured on each input.
Built-In Limiter
A built-in limiter with variable threshold control, eliminates noise caused by signal overload.
Calibrated VU Meters
Calibrated VU meters for accurate level monitoring.
Switchable 48V Phantom Power
48V phantom power is individually switched on all channels.

Rolls MX422 Specs

Inputs
4 x XLR Balanced Female
Output
2 x XLR L/R Balanced Male
Monitor/Headphone Out
1/4" Phone
3.5 mm Mini
ALT I/O
AUX Input: 3.5 mm Mini
Monitor Input: 3.5 mm Mini
Link Input/Output
No
Impedance
Mic: 10 Kilohms XLR Balanced
Source: 22 Kilohms RCA
Gain
+65 dB
Hum & Noise
115 dB
Frequency Response
20 Hz to 30 kHz +0, -3 dB
Distortion
Not Specified by Manufacturer
Metering
Calibrated VU Metering
Controls
Channel Level
Pan
Limiter Threshold
1 kHz Tone
Headphone Level
Trim (Gain)
Phantom power (+48 V)
Low-Cut Filter
Battery Select
Control Voltage Out
No
Phantom Power
+48 V
Operating Temperature
Not Specified by Manufacturer
Power
12 VDC / 200 mA or 9 V Batteries
Dimensions
9.5 x 7.25 x 2.37" / 24.13 x 18.41 x 6.03cm (WxDxH)
Weight
4 lb / 1.81 kg
Packaging Info
Package Weight
5.05 lb
Box Dimensions (LxWxH)
14 x 8.8 x 4.1"

Rolls MX422 Reviews

Only if you're desperate

By Greg
Rated 2 out of 5
Date: 2015-05-25

I purchased this mixer for field video production work based on the full features list and low price. Within the first few hours of use, several of the small plastic buttons cracked and fell off. Rolls sent me a bag of new ones at no charge, no problems with those. The mixer is compact but rather heavy, and the connector and control locations make it unsuitable for use in a standard bag. The build quality is cheap and generic, but seems reasonably sturdy. The tiny mechanical VU meters are difficult to see and use, and have nowhere near a standard response. But the worst problem by far is the preamp quality -- this mixer is noisy, noisy, noisy! If you turn up the gain enough to work with a dynamic mic at normal recording distance (no more than a foot from the subject), there is VERY noticeable hiss in the headphones and recordings. No audio device I've owned in the past 40 years has sounded this poor. It's too bad because the choice of features (except those meters) was actually rather good for a mixer in this price range. I bought a used Sound Devices 302 for more than twice the price of the Rolls and, although I wish it had pan pots and a fourth input, it functions perfectly and has superb sound quality plus terrific durability and usability.

It's ok, but Customer Support bad!

By Anonymous
Rated 2 out of 5
Date: 2011-09-07

I've had my MX422 for just over a year. It's been used maybe a total of 20 times. After use #5 I found that the CH-2 was giving me issues and the meters were not working. So sent it for repair (note the unit was only 2 months old) had to pay for shipping for repair. They supposedly fixed it. All was good in the studio, put the unit back in my Petrol PS602 mixer bag and the trims were giving me issues, seems they're very very delicate and their positioning in the rear makes it virtually impossible to operate in field bag. I take my audio into a digital recorder (Marantz PMD671) for recordings with my Canon 5DMii (since Cam's audio is bad) I called and wrote Rolls, they tell me again to ship the unit (at my cost) and they'll look at it again, I've asked for a new replacement unit since I can't trust this one and they tell me no, can't do that. I feel I've got a lemon and they will only patch it. Ask to speak to the owner/president and got an email that say that they don't speak with customers... what type of customer service is that? In my business if a customer's unhappy I (the owner) speak with them to resolve the issue. I'm selling my MX422 and getting the Azden (just wish it took 9V batteries and switched like the Rolls since I now have 10 extra 9V batteries.

Works Just As Described

By Anonymous
Rated 5 out of 5
Date: 2011-07-17

It works just like it's supposed to. The only negative thing I can say is that the trim knobs on the back are small but I also have giant fingers. If you have normal fingers and not sausages like me, you should be fine.

Great Field Mixer! good price!

By Anonymous
Rated 5 out of 5
Date: 2011-01-19

use in news, and broadcast aplication, etc

Disappointed with this product

By PVN
Rated 1 out of 5
Date: 2010-05-08

Lots of great features including balanced XLR inputs and outputs, a basic limiter, phantom power, 1k tone generator and slate mic all packed in a decent sized package. I purchased mine with the idea that it would be a nice entry level field mixer for ENG and commercial video production. Unfortunately the mic preamps are very noisy, the UV meters are substandard and I can't image the MX-422 will be very durable in the field. The mixer feels like it was cheaply produced and it didn't help my confidence when I found a few typos in the owner's manual. I would have gladly paid a little more for better quality materials in the same unit. If a company such as Mackie would produce a mixer with these features it would be a much better product.

Well worth the money. AAA+++

By james777
Rated 5 out of 5
Date: 2009-11-09

This is the best field mixer I have ever used and for the money it out performs other mixers that are four times the cost. This is an excellent product. I highly recommend it. It comes with a bag also what a bargain!!!!!!!!!!

Great Mixer

By JLMS
Rated 5 out of 5
Date: 2013-07-29

It delivers clean sound.

Great Mixer

By Anonymous
Rated 5 out of 5
Date: 2013-04-25

Bought this mixer to do location sound for video producion. It delivers clean sound. I typically run two lavs and a boom and never had an issue. The power button is in an awkward spot, but I really like this mixer!

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