I first watched this video ten years ago and I’ve been a Dj ever since. Watching it today gives me so much more of an appreciation for the level of this video. Both then and now.

@funkafize The setup you're describing would be fantastic. And yes, we have stacked the KW181's one on top of the other. They sound great, and arguably a little better than even placed side by side. Thanks for watching.

Love your videos. You are one of the few people that knows what he is talking about. I couple my QSC K Subs together and they sound great.

Wow you really know your stuff! I just bought two k 12's and one k sub. Your videos are very helpful and informative. Your the reason why I bought qsc speakers. Thank you very much

I was looking for the video on "the certain way" to connect 2 of these how you mentioned. If there isn't a video can you please explain? Thanks. Love all your vids. Your the reason I upgraded my system to the qsc's. Now, for a wedding of about 200 people would a pair of 2 k12's and 2 kw181's be sufficient?

Nice video. I have a 15" 600 watt and 2x12" 400 watt subwoofers. Would my sound output be better with the 2x12's together? I understand that the 2x12's effectively works as a 24" moving more air?

@agiprodj What stands are your mains on? Those look awesome!

Great video.. Thanks... Quick question.. Would two 15' subs "coupled" like this outperform a single 18? Particularly looking at 2 yorkville ls720 15' vs a yorkville ls 801p 18'.... Thanks

Hi Rick , Thanks again for sharing the Qsc Kw181 I have added a 2nd Sub , what’s the best setting 12 oClock or do you have any suggestions on settings , also can u send me a link for the video on Kw181 wiring , and I have 2 k12.2’s and 2 Kw181’s is that enough sound for 200 people , Thanks again for your time .

I have 1 sub that I put in front of the facade but it's always sliding around due to the bass lol. Any tips or suggestions to keep it still.

I have 2 QSC KW152's and 2 KW181's, if I set them apart instead of coupling the subs in the center, will my system sound any good?

Any word on how to wire coupled subs???

Thank you for this helpful video! However, i have a question. What is the best settings if i daisy chain the 2 KW181 subwoofers to each other? Thank you!

Hello how are you doing? While the proportion you find 2 KW181 2 k12 ?? you need lower ?? thanks

How about stacking the KW181's? I notice the subs have indents to fit the feet pattern, allowing more stable stacking. Will you still get the 3-6dB coupling advantage when vertical stacking? Was looking at ground stacking (per side) Two KW181's with One KW153 on top. Strapped down of course. A single KW181 with a KW153 is too far below ear height at the compression driver level.

I've heard that if you angle subs towards each other, at 45 degrees, you can also get more db. Would that work with two KW181 subs?

Good info so thanks for this!! Could you make more videos of how to improve as well as possible our sound system, please?. As for example, the best frequenzy to cut the subwoofer with the othe speakers. (how to set up the crossovers). Now I'm already folloing you!!

We have a medium size church and about to purchase some (4)QSC KLA12 SPEAKERS. Also thinking of purchasing 2 QSC KLA 181 subs. My question is would it be better to hang the sub attached to the array speakers or place the subs on the floor. Need your expert opinion. Thanks

So...if you have 4 of those Ascension subwoofers and set all of them side by side.... Would that be a potential overall SPL of 147 to 153?

@Techspert Yeah, that's a good point. Thanks for checking it out.

Hi rick... i would like to ask if you have diffrent brand of speaker system besides QSC..? You know it's so expensive here in the philippines and i don't know yet if it's available here yet.

I am in the market for a pair of subs to couple with my Yamaha C115V's. The QSC's sound to be exactly what I need. I am a sound quality guy and the size of these subs seem to be perfect. Thankfully I watched another one of your videos that compared them with the PRX618S-XLF's when it was mentioned that the QSC's don't have a crossover built in. They assume you are buying the matching set of tops that have the crossovers. That is frustrating. Thanks for the info though. I have subscribed.

ill be trying this today since im limited space... thanks for this video on great advice

does this kinda work with the tops too?

If I have 4 of these Ido you recommend putting them side by side too? I have 8 KLA12 and 4 KW181

You’re only speaking about spl in decibels in this video. Adding a second woofer will increase clarity at the same Db with one sub. Total potential output is there yes. But actual bass clarity and quality is increased as well. 🤘🏻

So then should I be running all MONO and ditch putting a Sub and cab on the left and right and setting the mixer to stereo?

Hi Rick, I wanna ask you , I have bought me the Audio Center Active SA315 speakers 2 off and also the Active Sa3218 double Subwoofer. Is this any good for mobile deejaying and to play in and club for an Gig ?

When hooking up 2 or more subs, what should be done for wiring? Is it better to use a XLR cable that splits into 2? or is it better to daisy chain the subs by hooking one up and then using the out from that sub and hooking into the second?

Where can I find the second video with the connecting of the subs?

@noodlecake71240 This also assumes you have no other signal processing in the chain that will help you get a mono sub out. Mono sub out is not a requirement, just to be clear...but it IS the truest sonic representation you want to have to take advantage of coupling effects. Otherwise you are sending arguably different signals to separate subs. Hope that all makes sense.

guys at sweetwater said that folks from qsc said best scenario is k10's with subs. not 12s or 15s because of conflicting frequencies. thoughts??

what do you think about Montarbo speakers? Tank 241A

Ok I got an question for you I have a pair of JBL MRX528 now that I went to passive vs powered I was always use to pair the subs side by side but no that i have the MRX would it still be the same if so does that mean I would have the two pair of 18 inch subs side by side

double the drivers give you 3db and double the power give you 3db so it you stick them together your saying you get another 3db as a bonus...I use JBL sr4719's I USE THEM AS speaker stands taking away a tripod one on each side of the room ...would you run the 4 18's in the center and run the tops on tripods on the outside? thanks DJ Mikey Mike

@MrForrest83 Our pleasure! We exist only because of our outstanding customers!

what are some good heavy bass drivers in a dual 12 inch drivers setup to provide bass in party environment for 100-80 people? and is this even possible with 12 inch subs? hope to hear some advice

I cant find the video where u show how to wire them

I think poster 'numberexhaust' got it right mentioning constructive interference is at work, or coupling. This is taught in physics classes, whether it's sound waves or optics, same principle. Remember floors and walls can either be your friend or foe, depends on how u position the subs (wavelengths and wall spacings come to mind).

How would you stack 6 of them? All together 2x3?

did you recomend for a band grup?????

I DO HAVE: 2 x K10 & 2 x KSUB. I'm planning on investing on: 2 x KW153 & 1 KSUB or my other option is 2 x K10 & 2 KSUB or the third option 2 K10 & 2KW181.... i do have a mobile DJ company in Mexico, and i normally attend Weddings and sweet 16, parties about 150 to 250 people. what do you suggest me to buy?

hey.. waiting on a short video on how you wired the 2 sub.. please let me know.. thanks.

shouldn't they be either port to port, or port on the ground side by side?

This info changed my life

What about placement when there are more than 2? 4? 6? 8?

Did we ever get a video on how to wire coupled subs? I'm looking and can't seem to find anything.

Good info Im abaut to by me the QSC KLA181 SUB WOOFER AND THE KLA 12 SET UP that,s why Im checking the QSC sistemas Thanks For the Video

Great job as always

what song was playing when you made this video?

Im thinking of dead spots. Should i go 1000 rms x 2 subs or 700 rms x 4 sub so i can make good placement.

song is rainforest by Paul hardcastle. awesome song

Thanx chief..love this

@zchur Our feeling is that you may end up doing more harm than good. You can certainly give it a shot and see what happens. You may have some issues with competing waveforms and time alignment.

Where do the wires go how do you actually hook them up from the back

@jamesprofulla The Amp-to-Speaker cable is a powered, speaker-level signal. That can't be wireless. The only possible solution is to send a wireless signal from a mixing board to your amplifier, but the amp would need to be located remotely next to the speakers.

@agiprodj I have 2 QSC KW152's and 2 KW181's, if I set them apart instead of coupling the subs in the center, will my system sound any good?

I have found that when you couple subs together they are more effective when the throats (vents) are coupled together. Your thoughts please?

is it better to stack or to couple if i have 4 kw181. Usually i put 2 on one side 2 on the other. And put one on the other.

I agree 100% this makes a difference

hi thanks for the tips. What about subs outside? Coupled, apart?

It’s correct that when you have two of the same subs running together you get a 6db increase in output but the explanation in this video for why that occurs is not correct. Doubling the power will give a 3db increase in output, doubling the radiating surface will give another 3db increase in output. Adding the second sub doubles the power and radiating surface which results in a 6db increase in output. The benefit of placing the subs together is that that you’ll minimize the negative effects of the subs creating bass nodes due to phasing issues. Also look into wave propagation in rooms to get a better understanding of how the floors, walls and ceilings effect how waves interact with their own reflections and other speakers in the same space

some clarification , additional info. ( check it if you want, its all accurate ) doubling power does add 3db... agreed. but doubling surface area will also add 3db, even with same power. so adding a second sub is 6 db. no less no more ( double surface area and double power )... i also agree 10db, is perceived double volume, also to note along those lines 1 db is the least that the ear can detect. volume controls are always different but it seams that most amps, and such work in 3 db increments, so up a notch is 3db. so adding a second sub is like adding 2 notches to your system volume... also i always like to add this nore when looking at a gain control.. the 0db. i don't know why they even add positive db to the gain control. typicvally the 0db is at the 12 oclock position. and that's as far as it should ever be. for smaller events , lower may be in order but going higher is a recipe for clipping, which can be present even if you can not hear it, and clipping can damage s a driver by exposing it to excess heat. ultimately could cause a thermal failure of the driver.

Thanks for the advice. New subscriber!

Really Helpful Thanks!!!!

can u do sub coupling with different sub

Another point that might help viewers is that coupling them reduces bass fingers created from splitting subs. Bass power alleys occur from destructive interference and if two sub cabinets are between roughly 10 and 35 feet apart (assuming a large room/outside) then they will create destructive interference throughout the listening area which sounds absolutely awful. I'm pretty sure you're aware of this but just wanted to let up and coming DJ's know that using sticks and separating subs (unless the room is small and the subs end up near the wall) can cause serious issues. Thanks for the video.

@rileyswanson Both options are worth a try. It always comes down to acoustics of the room. Set it up a couple of different ways and determine what works best.

Can I hook these up in my car?

@directsound This would probably be venue-dependent. We've run 4 Mackie SWA1801's all together in a school gymnasium just like you're describing, with the mains on tripods on the outside. It was too much. By comparison, we've also run 2 subs on each side. Much better sound for that size of a room. Most of us aren't scientists, so the best thing is always to allow yourself plenty of time to set it up a couple of different ways until you're happy with the results.

Going to make the purchase, should I jump?????

I actually spoke with QSC personally and they said that the 12s have the best cross over result from the rest of the speakers....... 10s and 15s

Great tip alot of dj's don't know this, was always a hidden secret..

I bought 2 181's coupled with K12's. Sounded awesome. Then I went out and bought 2 more 181's. So now I have 4. Believe it or not they pair well with the K12's set them to external sub. The sound easily appears to be doubled, maybe x2.5. I live in a condo and test them from time to time. F the neighbors. I cant describe how rediculous it sounds...

sure would

i use 8 Martin Audio ws318x subs for my disco and pa setup

@agiprodj i have 2 k12 and 2 kw181 what is the best way to set them up if using them outside and how should i wire them....

HEY CAN NON POWERED SPEAKERS BE MADE TO GO WIRELESSLY? LIKE INSTEAD OF USING LONG CABLES FROM THE AMP TO THE SPEAKERS IS THERE A WIRELESS UNIT FROM THE AMP TO THE SPEAKER CANCELING OUT THE LONG SPEAKERS?

Does this work with three subwoofers side by side? Is this better than corner loading a subwoofer in each corner of the room?

It give only 3 dB and the watts you just add them for fun or for reading the meter on the wall.

I only have one sub so I put in in corner of the room and it sounds great.

stacking vs side by side???

Thank you 🙏

@Techspert the challenging thing about sound reinforcement is that it is absolutely impossible for one person to predict another person's sound system performance in theory or in opinion without knowing the application. We've personally stacked the KW181's and done A/B comparisons at the events we do to find the stacked combination very good. But it's setup-specific and venue-specific. Concerts, theaters, and home audio setups have always stacked subs. If in doubt, try it out.

Name of intro song?. And how can I couple passive sub woofers to a receiver or amp?

You saying you get best sound from a sub by coupling them what is the purpose of companies putting pole mounts on top of subs?

Is it okay to mix 2 JBL prx718 subs with 2 JBL eon18 subs?

Don't want to tear anyone apart lol but technically when coupling base cabinets, especially high end single driver cabinets, you want the horns/air ducts together and drivers on the ends creating basically one base cabinet, where as you have them sitting identically next to each other, but with consumer cabs not a big deal.. good vid.

@jonjiggler Be sure to watch Rick's video over on the BassIsLoaded channel regarding power management. After viewing, feel free to contact us directly at sales at agiprodj dot com and we'll break it down even more. Thanks!

I have 2 151 and 2 181 I use the pole provided to mount my 151 on top of my 181 one on left on on right. I just bought 2 more 181 recently and I stack 2 181 on top of each other and set the 151 on top with no pole is this a good thing or bad??? should I not stack the 181 on top and have them side by side?? we are a live band with a x32 compact. and should I use mono subs?? I am only wiring them left, right at the moment.

What if you stacked one on top of the other, would the "numbers" be the same?

feeling giddy with MOTION sickness...why is the camera man moving so much :(

EV ETX for me, the 181's are great for their time but the EV's are on a whole new level

OH MY GOODNESS! I new camera man please!

Hi. i have the Mackie Thump 18 Subs. I noticed the other day that the cone of the speaker is turned toward the back of the cabinet. How do I need to place those subs on a room to get the best sound? And I was wondering why they are facing the back? Thank you.

hé said that if you increase from 1 to 2 basses you gain 3 db, but, how much you gain when you increase to 3 and 4?

You get a thumbs up from intro music alone!

Whoa, for a second there I thought this was going to be a video of a floating head.....

Just pick up a pair of 18 inch subwoofers. I'm going for the stereo effect 😎🔊🔊 Got rid of the computer and the DJ controller, I'm going back to vinyl and it's costing my a fortune 😯 I'm 55 years old and old school.

This is for pre recorded music