Rolls MX42 Mini Stereo Mixer

Rolls MX42 Mini Stereo Mixer

Rolls MX42 Mini Stereo Mixer

B&H # ROMX42 MFR # MX42
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Rolls MX42 Mini Stereo Mixer

Rolls MX42 Mini Stereo Mixer

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Product Highlights

  • 8 x RCA Inputs in Stereo Pairs
  • 2 x RCA Outputs (Stereo)
  • Mixes Multiple Devices with RCA Outputs
  • Individual Level Knobs for Each RCA Pair
  • Knobs Sport 100-kOhm Potentiometers
  • Passive Circuitry - No Power Requirement
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You Pay: $49.00

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Rolls MX42 overview

  • 1Description

The Rolls MX42 is an audio mixer with four pairs of RCA, stereo inputs and one pair of stereo RCA outputs. The mixer is capable of mixing signals from CD players, instruments, portable recording devices, video playback devices and more, outputting the result in a single stereo source. Passive circuitry allows the MX42 to operate without the need for battery or external power. Level control dials for each channel are located on the front. These dials boast a potentiometer resistance of 100 kOhms.

UPC: 675889000429
In the Box
Rolls MX42 4-Channel Passive Mini Stereo Mixer
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Rolls MX42 specs

    Input Connections 8 x RCA inputs (in stereo pairs)
    Output Connectors 2 x RCA outputs (stereo pair)
    Potentiometer Resistance 100 kOhms
    Impedance Input: 10 to 47 kOhms
    Output: 2.5 to 10 kOhms
    Gain -12 dB, maximum
    Signal-to-Noise Ratio Not specified by manufacturer
    Power Passive operation, no external power required
    Dimensions (W x H x D) 3.0 x 2.0 x 1.4" / 76.2 x 50.8 x 36.1 mm
    Weight 1.0 lb / 0.5 kg
    Packaging Info
    Package Weight 0.55 lb
    Box Dimensions (LxWxH) 8.0 x 4.7 x 2.0"

    Rolls MX42 reviews

    MX42 Mini Stereo Mixer is rated 4.6 out of 5 by 27.
    Rated 5 out of 5 by from Small & Solid! Quiet & Clean! Don't let the small size fool you. The Rolls MX42 Mini Stereo Mixer has a solid metal build. The volume control knobs are quiet with a nice mechanical resistance and good feel. I use the MX42 with a Behringer UCA202 Analog to Digital Converter. This is a passive mixer without any electronic enhancement. With the volume maxed-out the MX42 will attenuate the signal by 16dB. This may be a problem if you are using these with earphones and a portable source. I need to attenuate the signal from my phono preamp when I convert my LPs to digital so it's not a problem for me. The photo explains how I use this mixer.
    Date published: 2013-03-18
    Rated 2 out of 5 by from Passive mixer has no channel isolation This mixer does not isolate each channel, so in effect, a device in channel 1 is automatically connect to a device in Ch 2. This may be because it is passive, but a normal mixer keeps channels isolated. In other words, sound cannot travel backwards toward another source on the mixer -- but beware, this passive mixer connects everything together.
    Date published: 2015-11-09
    Rated 4 out of 5 by from Simpler is better I have my computer, TV, and iPod dock all connected to the same loudspeakers... but I wanted to hear alerts from the computer even if we were listening to one of the other sources. Problem solved. This little box is built like a tank, completely passive (who wants yet another wall wart power supply to plug in?), and mixes four stereo inputs with no degradation in sound quality. The only problem is that the box looks a bit clunky and is so small that it can actually be dragged off the shelf by the weight of the attached audio cables.
    Date published: 2008-11-27
    Rated 5 out of 5 by from Did the trick for me! I had 3 audio sources that I wanted to combine into a single output for my speaker system (cable box, satellite box, and ROKU box). After messing around with y-splitters and RCA splitters I bought this unit and it works great. All inputs are easily mixable and I don't detect any added noise. The unit seems well-built in a solid metal housing with sturdy and firm volume knobs. I'm using it in my garage-cave so I'll have to wait and see how it holds up in Texas heat and humidity. But I don't expect any problems. I'm pleased that it solved my mixing issue in a simple, passive and compact mixer.
    Date published: 2015-06-08
    Rated 5 out of 5 by from Does what it is supposed to. I am actually using it as a dual stereo to mono mixer. i.e. plug Left of a stereo source into Channel 1 left inputand Right of the first source Channel 2 Left input, and the mono sum is the Left Channel out. I then plug Left of a second source into Channel 3 Right, Plug the Right of the second source into Channel 4 Right, and the mono sum is the Mixer Right channel output. Device is passive, so there is no gain, but I need attenuation anyway so this works well. It is well made, and there appears to be no detectable noise.
    Date published: 2017-06-05
    Rated 5 out of 5 by from -12db is a noticable drop in volume ... I'd take a star in lieu of my own ignorance but that seems inappropriate. This device does exactly what it says it does so I can't take stars for that. However, I can't really think of a situation where losing 12db of signal is good, acceptable yes, but not good. For example, I can compensate for for the signal loss by connecting the output to an amplifier and adjust the volume from there. But mixing a bunch of devices from their 1/8 headphone outputs and trying to listen with headphones or record using PC's 1/8 line-in would be unacceptable. I'm tempted to try and breadboard a simple stereo amplifier circuit with the gain set to a static +12db so I can use the mixer with my headphones or PC's line-in without the use of more equipment. This was probably the wrong mixer for me but it performs the way it was intended to and it's construction is pretty solid ... so 5 stars.
    Date published: 2010-08-02
    Rated 5 out of 5 by from Works Great! This little mixer is a dandy. I use it to combine 2 computers (a Mac and a Windows box) and an XM radio receiver. It's passive, works great with line-level signals, and of course, is super-quiet. It's very well built - all metal - no cheap plastic, here. I would definitely recommend it. The price may seem a bit high for a passive mixer, but considering the quality, it's worth it. I really have nothing negative to say. I did have to buy some 3.5mm-to-RCA adapter cables to match my computer audio outputs to the mixer, but these are inexpensive (less than $3 apiece).
    Date published: 2010-02-03
    Rated 5 out of 5 by from Just What It Says On The Tin It's a four-channel, stereo mixer. Since it's passive, you can't amplify a signal with it, and it has no EQ's and no mic pre's, etc., so it's no suitable for any use except sub-mixing a bunch of stereo line-level signals. But if you have multiple synths or sound modules, and you record everything inside your PC, this will let you hear them all together without gobbling up a power outlet, or a rack space, and the passive nature of the mixer means that you're not compromising your signal quality with cheap op-amps or line noise. Simple, effective, I like it.
    Date published: 2011-03-02
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