Aux Fed Subs Setup For Behringer XR18 X-Air - Midas MR18

Tutorial for setting up your sound system and XR18 / X Air for aux fed subs. Midas MR18 aux fed subs method uses identical setup information as found in this video.

Aux Fed Sub Method
Software used for mixer control: Behringer X-Air Edit (available for free download from Behringer site)

This installment is a bit of a long one with all of the discussion of audio bus sends, crossover networks, DSP, amplifiers, and active and passive speakers. I did this video in three sections that are broken down into:

0:00 Intro
0:20 Setting Up The XR18 For Aux Fed Subs
6:12 Setting Up The Speakers/Amps For Aux Fed Subs
11:46 Tips And Advice For Mixing On Aux Fed Subs

Amazon Affiliate Links-
Behringer XR18 on Amazon:

Midas MR18 on Amazon:

Behringer X32 on Amazon:

Midas M32 on Amazon:

Stellar XT (Narration) Mic on Amazon:

If you're familiar with the concept of mixing aux fed subs on an analog console, then the first section might be all you need. It explains how to setup the console for mixing on Aux fed subs, and once you have that complete, everything else should be the same for you. Although, parts two and three might make for a good refresher.

If you're wanting to try aux fed subs and have no experience with the concept, then you'll probably find all 3 sections informative. The second section explains various system interconnect issues , for your amps and speakers. Also I address some differences between how you would do this on a Behringer X32 / M32 versus some limitations with the X-Air series.

Amazon Affiliate Links for amps, adapters, and speakers:

XLR Y Cable on Amazon:
(GLS Audio 6 Inch Patch Y Cable Cords - XLR Female to Dual XLR Male Cables - 6" Y-Cable Cord Splitter XLR-F to Dual XLR-M)

Behringer Amp with DSP:

Crown Amp with DSP:

Yorkville Powered Sub with 21" Woofer / Speaker:

Yorkville Powered Sub with 18" Speaker:

Yorkville Powered Subwoofer with 2x15" Speakers:

The third section is pointing out some tips, and also pitfalls to be careful of, when mixing on aux fed subs. As pointed out in the video, if you're recording post-EQ or doing a stream feed, there are a couple of things to be extra aware of.

As always, if there are any questions, comments, or suggestions please comment in the comment section.

Suggested related video:
5 Typical Mistakes Behringer XR18 and Midas MR18 Users Make:

I've created some playlists for these Behringer and these Live and Recording Audio Production Tips / Tutorials-

Behringer XR18 / X Air Tutorials:

Behringer X32 / Midas M32 Tutorials:

Alan's Live Production Tech Tips and Info:

Live Sound Questions and Answers Facebook Group:

#XR18
#BehringerXAir

EV Subwoofer Arrays - A Practical Guide

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Script files and other tutorials and info in PDF format as well as scene and library files at the Patreon Page.
Patreon Page:

Video is about live sound reinforcement - Aux fed subs technique. Information and tips for Behringer XR18 setup and sound system setup and prep for using aux fed subs. Uses include concert sound, club sound, church sound, etc..

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Please watch: "5 Tips For Better Live Vocal Mixes - Mixing Live Vocals - Live Sound Tutorial on Behringer X32 XR18 "
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"As an Amazon Associate I earn from qualifying purchases."

[AlanHamiltonAudio]

Longer video than normal. A lot of info to cover and it didn't make sense to cover not only how to setup the XR18, but also touch on the speaker/amp system and tips and pitfalls for mixing with the subs on an aux. I broke those parts down into their own chapters so people could skip parts they might already know... or click back to go over a chapter again.
Let me know any questions.
This was a viewer suggested topic. I'm always open to suggestions. Just leave me a comment :)

Amazon Affiliate Links-
Behringer XR18 on Amazon:

Midas MR18 on Amazon:

5 Typical Mistakes Behringer XR18 and Midas MR18 Users Make:

Behringer XR18 / X Air Tutorials:

Behringer X32 / Midas M32 Tutorials:

Alan's Live and Studio Sound Production Tech Tips and Info:

[keithpowell]

Good info. Using mains to power amp and 12" PA speakers. I wound up for my home studio using the headphones out and ran both inputs to my center powered sub. The sub already filters high frequencies, win-win easy-peasy. I did this because I also have outboard crossover if I use larger PA system. BTW, you get more input signal using both lines of the stereo signal into the sub. You can get away with a mono 1/4".

[godzillamb]

Great video and great starting point for anyone using an xr18 or AIR. I would just like to mention that you can obtain a 24db low/high frequency cut by stacking the Q filters. Start by setting both filter 1 and 2 at the same frequency and set them both to Lcut. Qual size has no affect and can be ignored. Applied to the Sub AUX Lcut (40Hz) and Hcut (100Hz) and Main L-R with Lcut (100hz), would functionally have a simple cross-over (minus time delay and phasing).

[ralis]

Thank you for these XR18 videos, I was completely confused by this mixer. I only use it as an interface for recording and mixing

[bradmalinowski]

It has been 4 months since I submitted a comment Alan. I'm getting a really good handle on the XR18 now. YOU have been instrumental in my grasping of the basic concepts and I still refer to your videos to learn more and more. Thanks so much!

[Puebow]

Thank you for not talking jibberish for 5 min before starting... very concise explainations and thank you for that as well.

[swenzell]

Thanks so much for all the great videos and clear, detailed information! I'm relatively new to my Midas MR18 and your channel is the best at simply explaining concepts and use!!

[jonrussell]

This has been the most helpful channel for mixing with this mixer.

I picked up the XR18 in 2018 on a recommendation from a cousin that plays bass and runs the monitor mix in a country band.

Ive been using this mixer to run sound/monitors for my band and others along with DJ gigs for weddings.

I have 4 powered tops ( harbinger V212s no dsp features) and run 2 on each side for stereo.

My subs are 2 Fender 115SA passive subs powered by a QSC 1310 USA power amp in bridged mono.

Ive always done the low pass fillter
On aux 6 and the high pass on the mains to act as the "crossover"

I want to get one of those rack mount crossover units that let you do the mids/highs in stereo and run mono subs. I am totaly ok with getting a crossover thats analog and doesnt have all the digital interfacing stuff on it but i am confused/intimidated by terms like 2 way stereo/ 3 way mono and another one that shows 3 way stereo/ 4 way mono. Is there a guide out there for making sense of this and how to get that kind of setup running?

[bennyv]

As an Australian, I just want to say that I love listening to your accent. The info on the XR18 is just a nice side benefit 😅

[mnster]

Oh wow this so well done. This is going to help so many people working with subs. I once had a power sub available to me for a music festival with my xr18 but then did not know how to wire in and configure. Thank you 🙏. There is a face book xr18 group and I would like to start sharing your videos if this has not already been done. Many thanks Alan.

[charlschuck]

Great video when I bought it there was no videos showing a lot of info the company just through out only the basics thanks for your input really nice explanation

[GerhardAlbinus]

Thank you so very much for your awesome tutorials. My Band has two Behringer XR18 / X Air, one for use, one for backups. This helps tremendously! Kind regards,

[Xpyburnt_ndz]

Your vids have helped me out immensely Alan! Thank you for all your time you are putting into them! I'm an old "analog" sound guy and getting this XR18 has really "lightened" the load so to speak! I have an issue with my XR18 in that I get nothing out of my headphones to monitor with them. Not sure if I need to send my unit in for repairs or if I just haven't found the "button" to engage them! I know my headphones are good, as I can plug them into my Soundcraft mixer, and they work flawlessly, but not out of the Behringer!

[SunsetAcresFarm]

Solid info. Believe it or not, ChatGPT sent me here when researching something I was wanting to do with x air. Thanks!

[TechOttawa]

I would add a word about the importance of removing "low end mud" on every channel (HPF) AND also using the Aux On Sub to punch up individual low end elements on a channel by channel basis too.
Removing crud from channels feeds monitors and reverbs with a cleaner signal for a better mix overall.

[bradmalinowski]

I'm a new subscriber. Thank you so much for your very helpful videos. I'm learning how to operate our new XR18 from this channel. It's great!

[intimomusic]

Perfect info with all the important details step by step. Thanks Alan 😎👌

[chuckcostello]

Such great info. Your videos have helped my workflow tremendously with this mixer.

[thesurgepartybandnj]

Once again you’ve enlightened me. I thought I knew my X Air 18 well! Thank you

[LiveeviL]

I've been trying for the longest time to figure out how to sync the Main LR level with the sub Aux level and this answered it, it can't. At least I know now that I wasn't going crazy for no reason.