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Rolls MX401 Four-Channel Stereo Mixer

BH #ROMX401 • MFR #MX401
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Rolls MX401 Four-Channel Stereo Mixer
Key Features
  • 4 x Balanced XLR Inputs
  • Selectable Phantom Power per Input
  • Balanced Stereo XLR Outputs
  • Selectable Mic/Line Level for XLR I/O
Compact, rugged, and efficient, the MX401 Four-Channel Stereo Mixer from Rolls is a deceptively flexible analog audio mixer designed to make mobile sound setups and field recording hassle-free. The unit features four channels of XLR audio input and balanced stereo XLR outputs, with all XLR I/O featuring individual mic/line level selection. The MX401 also sports level control for each input channel, master gain control, an extra 3.5mm stereo output for headphones or as an aux send, and 15V of phantom power selectable for each input. Crucially, the MX401 can not only run off of the included 15 VDC power supply, but also on two common 9V alkaline batteries for completely mobile, outlet-free operation.
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Rolls MX401 Overview

Compact, rugged, and efficient, the MX401 Four-Channel Stereo Mixer from Rolls is a deceptively flexible analog audio mixer designed to make mobile sound setups and field recording hassle-free. The unit features four channels of XLR audio input and balanced stereo XLR outputs, with all XLR I/O featuring individual mic/line level selection. The MX401 also sports level control for each input channel, master gain control, an extra 3.5mm stereo output for headphones or as an aux send, and 15V of phantom power selectable for each input. Crucially, the MX401 can not only run off of the included 15 VDC power supply, but also on two common 9V alkaline batteries for completely mobile, outlet-free operation.

Elegant and Efficient I/O
  • Four balanced XLR input channels with mic/line selection 
  • Level control and stereo pan control per channel
  • Balanced stereo XLR outputs provide a stereo feed for monitors, PA system, or audio interface 
  • Selectable mic/line level for each XLR output
  • Flexible unbalanced 3.5mm stereo output for headphones or record send
  • Main output gain control with clip indicator 
Flexible Power Options
The MX401 features two options for power, including a standard 15 VDC power supply (included) and the ability to run on two 9V alkaline batteries, placed in dedicated slots on the side. This ensures the MX401 can perform well in either a fixed position setup or a mobile setup, such as a field recording system. The unit also comes with selectable 15V phantom power, allowing individual selection of powered inputs.
UPC: 675889004014

Rolls MX401 Specs

Key Specs
Number of Analog Input Channels
4 (4 Mono)
Number of Mic Preamps
4
Analog Output Channels
1x Stereo Master Output
EQ
No
Built-In Effects
No
Wireless
No
Rack Mountable
No
Mixer
Number of Analog Input Channels
4 (4 Mono)
Number of Mic Preamps
4
Analog Output Channels
1x Stereo Master Output
Mix Routing
Stereo Main Mix
Faders & Level Adjustment
No
Meters
Main Meter:
1x Single LED
Signal Processing
Gain/Trim Range
Up to +55 dB
Dynamic Processing
No
EQ
No
Solo/Mute
No
Built-In Effects
No
Performance
Frequency Response
20 Hz to 20 kHz -3 dB
Max Input Level
-14 dB
I/O Impedance
Input:
600 Ohms (Mic)
10 Kilohms (Line)

Output:
600 Ohms (Mic)
10 Kilohms (Line)
SNR
96 dB
THD+N
0.2%
Connectivity
Analog Inputs
4x XLR 3-Pin Balanced Mic/Line Input
Analog Outputs
2x XLR 3-Pin Balanced Mono Line/Mic Output (1 Stereo Pair, Post-Fader)
1x 1/8" / 3.5 mm TRS Unbalanced Stereo Headphone/Record Output (Post-Fader)
Phantom Power
+15 V, Selectable On/Off (Selectable on Individual Inputs)
Digital I/O
No
Wireless
No
Power
Power Supply Output
12 to 15 VDC at 500 mA, Center-Negative (Included)
Physical
Rack Mountable
No
Dimensions
8.5 x 1.5 x 5.8" / 21.6 x 3.8 x 14.7 cm
Weight
2.1 lb / 1 kg
Packaging Info
Package Weight
2.97 lb
Box Dimensions (LxWxH)
13.9 x 8.6 x 3.9"

Rolls MX401 Reviews

Great value in a simple device

By Brian
Rated 5 out of 5
Date: 2024-12-23

I was looking for an external audio mixer to modulate audio levels during a recording when on a tripod. The number of inputs (4) and outputs (2) was important, as well as the ability to easily adjust from mic to line levels, and this device gives you the ability to do that on the inputs and the outputs, with the push of a button. You can use two 9-volt batteries in the field, or use the included AC plug when indoors near a AC power outlet. The pots are of a decent size, making level adjustments on the fly easy. I was getting cramped fingers trying to adjust the audio on my camera. Each input even has a pan pot for left and right separation. The MX401 gives me added boost to weak signals, as any good mixer should. Finally, it is made in the USA, which is always a plus.

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