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SM Pro Audio M-Patch 2 Passive Volume Control/Switch Box

by SMPro Audio
4.3 out of 5 stars  See all reviews (13 customer reviews)

List Price: $219.00
Price: $129.99 & FREE Shipping. Details
You Save: $89.01 (41%)
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In stock on July 27, 2014.
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Frequently Bought Together

SM Pro Audio M-Patch 2 Passive Volume Control/Switch Box + Adam Hall PAD ECO Series SPADECO2 Monitor Isolation Pad
Price for both: $151.63

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Product Features

  • Passive volume attenuation control Independent Main & Aux controls A/B multiple outputs.

Product Description

The M-Patch 2 is a compact desktop/rack-mountable sized passive volume attenuator and patch control device. Building on the success of the original M-Patch, the new M-Patch 2 is a feature packed passive problem solver for nearly all production environments. The M-Patch 2 provides an ideal desktop or rack mounted, stereo level control solution for any audio monitoring application.A great way to passively attenuate stereo signals from soundcards, CD players, pre-amps, and mixers, the M-Patch 2 front panel rotary controls allow precise level adjustments for two input sources. Featuring balanced combo XLR/TRS input jacks and XLR outputs, RCA & 3.5mm jack inputs, mono/stereo summing switch, Mute switch, A/B output pairs, and a built in stereo headphone amplifier, the M-Patch 2 has all bases covered. No more bit loss! One of the benefits of passive volume attenuation is that you no longer have to control volumes with your software master volume fader. Reducing audio levels from software only reduces your bit depth. It is much more appropriate to keep your software masters at unity and passively attenuate the audio to your active monitors.No active circuitry, buffers, transistors, batteries, or power supply of any kind can interfere with the main passive output of the M-Patch 2. It simply delivers attenuated signal. That's it... pure, simple transparent.For users wishing to monitor the audio via the built in headphone amplifier, the included external power supply is required. Even with power connected to the unit the main outputs remain outside of the power circuit!The M-Patch 2's dual rotary controls allows precise level adjustments within 1dB from 0 to -40dB, with .5dB interchannel accuracy to -60 dB. In addition, the M-Patch 2 features completely balanced operation with its combo XLR/TRS input jacks, and XLR outputs, and can be used in unbalanced applications with the RCA & 3.5mm stereo input connectors. Two stereo output channels are provided (A&B) with a selector swit

Product Details



Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews
3 of 3 people found the following review helpful
5.0 out of 5 stars Great Passive Monitor Controller June 25, 2011
Verified Purchase
This little passive monitor controller if perfect for my situation. I run an analog summing mixer with outboard gear, and I send my final summed signal to this controller and back into my DAW, and this allows me to switch between my two sets of studio monitors, and have an 1/8" input to switch to for reference checks, and final playback (avoiding the analog summing chain) and not have to mess with the volume on my monitors. Even if you keep everything in the box, this unit is helpful if you use a digital "virtual" mixer, and don't want to suffer from bit loss by having your digital faders below unity, but need control over monitor levels. I like that it is passive, has 2 switchable inputs and two switchable outputs, and much more affordable than other options (some of which are not passive). The headphone amplifier sucks, which means I don't have to plug it in at all. I have other options to drive headphones, and don't really mix with them anyway.
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5.0 out of 5 stars I Love my M-Patch! March 19, 2014
By John
Verified Purchase
Mine came in black finish, beautiful! I mount it in the rack and the included rack ears are in the same finish so it's a very clean look. About the functionality there's nothing I can say other than the volume knobs have that weight that we all love. The only think that I don't like is the selectors are in a cheap grey finish plastic.
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5.0 out of 5 stars LOVE THIS THING! March 14, 2014
This works wonderfully with all my home stereo and studio equipment.
You don't really need an active preamp (except for phono) ; CD players and D/A converters can drive most power amps directly.

Had mine for a year and a half now and no sign of any scratchiness. I have the single input version (nano patch) too, for half the price.

Currently the picture is wrong, since it is not showing that there are markings indicating the db level around the knobs.
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4.0 out of 5 stars A great passive monitoring tool February 14, 2014
Verified Purchase
I'm using this to monitor audio through my Lynx Aurora. Sound quality is excellent. Build quality is excellent. Knob really feels great. Came highly recommended and I am not disappointed.
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4.0 out of 5 stars i should have bought one of these years ago January 21, 2014
Verified Purchase
really nice to have a big knob right on my desk, rather than reaching over to my recording interface to adjust the monitor level. much cheaper solution than one of the other monitor station / big knob type products. my only complaints are:

1) I was not ready cable-wise to switch to having XLR outs to the monitors rather than 1/4"
2) I wish the headphone volume control was independent of the big knob's level.

great, solid product though!
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5.0 out of 5 stars No complaints here June 4, 2013
Verified Purchase
This box does everything I need it to. It's passive, so it doesn't color the sound, it makes for easy switching between my two sets of monitors, and even has an auxiliary input (RCA connection) with separate volume control (which I use to patch in an xbox. Gotta take 5 from working every once in a while!). The main volume knob is really smooth and has some slight resistance, which makes it feel great when dialing in levels.

I chose to mount it under my desk with the included brackets (mounted upside-down so the box is hanging) so that it's right at arm height for extremely quick access. People have said the headphone amp isn't great, but I've never used it as I connect my headphones directly to my interface when needed, so I can't comment on that claim.

I don't tend to throw money around for the studio all "willy nilly", but I'm sure glad I purchased this unit.
For something that really doesn't do much, it's definitely a unit that make working a lot more enjoyable.
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4.0 out of 5 stars Simple and Great sound October 24, 2012
Verified Purchase
I have used this controller everyday for about 6 weeks. The overall function of the unit is strait forward simple. I was very concerned about adding this controller to my signal path, I typically monitor strait out of my converters to my power amp. With the M-Patch in the signal path, the sound seemed relatively un-effected, the stereo image and depth of field all seemed right, plus I could switch sources and monitors on the fly. The ability to switch input sources and monitors on the fly has me listening to more records, and my work flow has improved. My only big gripe is that the headphone output level is also tied in to the aux and stereo level volume. I wish that the headphone amp had it's own gain stage (i had assumed this because this part of the controller is active). To be clear, the headphone volume control adds/subtracts but the relative signal is subject to the level the aux or stereo volume is set to. The construction and appearance are very good. I am very happy with my purchase, and I would have given this 5 stars if the headphone amp did not seem quirky in the gain stage.
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