How to Setup and Dial in a Line Array of REL Acoustics Subwoofers
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- čas přidán 27. 09. 2021
- REL’s Chief Designer guides you step by step through his setup process to get the most out of a REL 6 pack.
Learn more about REL Acoustic Subwoofer Line Arrays at rel.net/rel-acoustics-subwoof...
4:36 Setting up and tuning the 2 bottom/anchor subwoofers
10:50 Setting up and tuning the 2 middle subwoofers
14:37 Setting up and tuning the 2 top subwoofers
17:59 Connecting all 6 subwoofers with line array connectors, RCA or XLR for LFE and stacking brackets
22:20 Fine tuning the line array with all 6 subwoofers connected.
27:20 Setting up and tuning the LFE signal if using the line area for home theater applications
Why Would You Want a Line Array?
Let’s explore the purpose to our Line Array approach because, let’s face it, if you haven’t heard one you might well think this is just about pure power and ludicrous mode output. While you wouldn’t be wrong about their potential for massive output the true reason for owning a REL Line Array has more to do with all the amazingly tactile qualities the highest end music and film sound systems aspire to.
The sound quality, visual presentation and sophisticated forms these deliver elevates merely very good systems to a whole different and better-in-every-way delivery of music and film sound.
What can be even more rewarding than buying a line array, is building one over time. By starting with just one or two RELs, and adding additional subwoofers as funds permit, you can better understand what each unit in the line array brings out in your system. You’ll be amazed at every step of the journey.
Until one experiences a REL Line Array it is hard to understand the profound leap from mundane to edge of the art these afford. - Jak na to + styl
Thanks, for making this line array setup video.
I unboxed my S510s a couple of months ago, but have been a little apprehensive to setting them up. Tech support explained to me the setup steps, but seeing it done for me is much better. You filled in some of the fine points of the process and what to listen for that were still a little nebulous.
For that price the dealer should set them up for you.
Yessssss to longer form videos! YESSSSS to line arrays…getting a pair of 510s or 812s for Christmas! Many thanks 🙏🏼 for the vid
Thank you for the support, and we hope that you love the performance of your stereo pair!
these types of setup videos are immensely helpful.
This is the video I’ve been waiting for! Watching a REL (arrays for that matter!) get dialed in by The Dude himself! Def not going to see this setup at the local BB. Feels like a front seat at CES! Thanks John!
We're glad to hear that you enjoyed the video! Feel free to reach out if you have any questions about the topics covered in it.
Thanks John. Amazing insight. Amazing product. I will add to my REL and complete my line array one day. ...soon I hope.
I really love the no-nonsense way you think John, the way you anticipate people that are silly is great. I really like your stuff.
Thank you for watching, and we are glad that you enjoyed the video! If you have any questions then feel free to reach out and we will be happy to assist.
I fully share all of this configuration! this is the best setup in the world to get huge bass by multiplying the subwoofers!
no disfration from loudspeakers to loudspeakers and multiplication of the power per line;) I have been using this principle for 10 years with 8 passive subwoofers independent of each other (4 left + 4 right) without any speaker + amplifier filter external qsc4050hd, the problem encountered was starting to complicate because the sampling by micro analysis I situate the volume of the 4 subwoofers at too large a volume (-18 db)! So I managed to find the secret by analyzing a single subwoofer without connecting the others (4 ohms) and then connecting the other 3 (1 ohm! 4: 4 = 1 ohm) And it works it's absolutely monster ! but you can't do a one-line configuration in one pass ... great, beautifully explanatory video;)
first: Obligation to configure only one subwoofer by the measurement microphone
second: plug all others in uplink
Result: The first subwoofer is configured in perfect micro analysis under its 4 ohm impedance and the electrical principle of connecting the other subwoofers thereafter generates a division by 2 of the Ohms value to the next subwoofer therefore in a configuration of 3 subwoofers we get 1.33 ohms from the entire subwoofer line and therefore a triple multiplication of the power delivered by the power amplifier with a basic analysis 🏅
The huge advantage of its REL subwoofers which has an LFE xlr input and an LFE xlr output is that you can adjust only one subwoofer by the analysis microphone of the preamplifier without connecting the others and connect the other 2 by the LFE xlr output then on the same principle mentioned above but as a separate power amplifier + passive subwoofer it works on the same technical principle but as an integrated amplifier in the subwoofer;)
👍
Exceptional quality 👌 of detail.
Very helpful, thank you.
I have a pair of G1 MK2s. Just this single pair for now though I plan on building the array when I have a little more space. When John sets the volume and crossover points on the S510s what does that correspond to on the G1? We don't have the click settings but that screen in the front. I am assuming 30hz for crossover and maybe 15-20 for volume? I have pretty big front speakers and my volume is currently set nearer to 25 than 15. Thank you.
I can't believe how much this dude's approach clicks with me...
Unfortunately it's not a good method, he's working with limitation of the subs. You place subs in the best location. Not move subs to just where it's in phase because you don't have variable phase Sigh
@@user-gf7kj5vj3p what do you mean by variable phase ad why is it needed? I don't know much about audio...
I really like this video. And, as a music lover/audiophile, I can certainly tell that John has dealt with my people before. Many times. I love some of his word choice and prioritization, they're killing me. I believe him, though. And damn, a guy's whose set up +5000 subwoofers, that's one that you listen to.
Thank you for watching!
Great video thank you, now what track/tool you are using for this TuneIn process? Thanks again.
Here is a link to an article from our website which goes into detail regarding our recommended reference recordings for tuning subwoofers: rel.net/blog/2018-10-29/system-thinking/subwoofers-tuning-tracks/
They do really like the sonus faber concertos or the concertino's..
Because i have them to with the original stands, i see you have the stands of the sonus faber concertinos
Hi, can you provide more information on dealing in the crossover and volume on the first sub
Here's an article that goes over how to set crossover and gain when using just 1 subwoofer. rel.net/blog/2020-07-15/principles-of-sound/how-to-set-the-crossover-and-gain-on-a-subwoofer/
Wow. This is next level base discussion. I just put my subwoofer on and turn it up and walk away. I'll be watching these very closely.
Thanks for the education
Thank you for watching, and we're glad that you enjoyed the video. If you have any questions about the setup or tuning process then feel free to let us know and we will be happy to assist.
@@RELAcoustics thanks a lot I will. I currently have a b&w 800 series HT/Music system and I'm just about to buy a Rel. I didn't know why I would need that many subs. 🤷🏾♂️. I like to hear detail so I'll be reaching out to you more
I have a pair of s510’s, no 6 pack yet. I set them up using sneakers as the first anchor set in this video. My mains are set perfectly with proper rake angle. However, they have adjustable spikes. The REL’s do not and sit directly on a carpeted floor. The problem with this is that my speakers are perfectly leveled, but my subs are not and are clearly leaning forward compared to the mains due to issues with the floor. Should I add shims under the foot rails to make the s510’s in perfect vertical alignment with the mains? This would wind up decoupling the subs with the flor and a latter amount of the rails would no longer be touching the floor. Any advice?
Thank you for reaching out. If the floor in your room is not perfectly level, then thin wooden shims can be used to balance the subwoofer on the floor. In our experience wooden shims are thin and solid enough to still allow the subwoofer to be coupled to the floor.
I’m curious after seeing this setup, which essentially fees like two tower speakers in front of the room. With the Line Array Setup, is the impact of “room mode” in low frequency space, which seems to necessitate subwoofers generally, not relevant? If so, would one be able to achieve overall better sonic performance with a true full range speaker with +/- 3db @ 20-25Hz, provided they are powered adequately for the room?
Thank you for reaching out. Using a full six-subwoofer line array does help to resolve some low-frequency room acoustics issues, and can lead to a more balanced distribution of low-frequency energy in the room.
While a pair of main loudspeakers that can truly reach down to 20Hz with authority and strong dynamics would be ideal, in practice there are very few speakers that can achieve this in a typical listening room, and these types of speakers require significant amplification to be able to produce these sub-bass frequencies, let alone do so with precision and detail in the sub-bass. By contrast, using an appropriate subwoofer paired with your main loudspeakers will produce higher quality sub-bass, and typically for less cost than a truly full-range speaker and power amp that can adequately drive them.
If anyone was curious, a Nimitz Class Aircraft carrier weighs approximately 1,209,523x more than a No. 25... But I cannot move one without help. Great video as always!
One day I’m going to get John to come and setup my system … I live in South Africa 🇿🇦 😉😅
@John Smith it’s a personal choice at the end of the day… “All You Can Eat Buffet” with the JTR Vs a “3 Michelin star 15 course Dinner” with the REL’s… I know which I would prefer 😉
The description of the resonant bass drum head having a delayed and perceivable attack is something that might need another examination because that’s not what happens. I’m an audiophile so I pay attention to, and appreciate sound quality. I’ve also been a serious drummer my entire life, and have been professional full-time for over half my life (I’m middle aged now). I’ve played over 6,000 live shows all over the world, plus studio work both commercially and also engineering the sessions myself in my own studio. I’ve played concert bass drums in orchestras as well as marching bass drums, and to this day I’ve been listening to a large (40”+) bass drum played practically every night for the last 23 years. I’ve heard it acoustically, recorded, and close mic’d with an in-ear monitor mix literally thousands of times. There is no second transient. It doesn’t do that, at any dynamic level. NO drum does that. Perhaps you’re hearing a room reflection as the “second transient” because that’s much more likely since it would take a given distance to hear any type of latency. Either way, I’d like to know the recording you reference when you hear this, the actual time mark too if possible. I’m always willing to learn something new, but as of right now this seems like you’re describing something else. Thanks for making the video.
The reference track that John mentions in this video is called "Cosmo...Old Friend", and it is track 4 on the original soundtrack album for the movie Sneakers. The recording features a concert bass drum which is struck consistently throughout the track.
@@RELAcoustics Great. Thank you. I will check it out. 👍🏻
Same level of detail for a stereo pair of Rels next please!
It is possible that we will release a similar video specifically about stereo pair tuning in the future, though the process for tuning stereo pairs is exactly the same as for tuning the bottom pair of subwoofers in a line array, as shown in this video.
I started with a pair and now own a full REL G1 MkII 6-pack, (main speakers are Dynaudio Evidence Masters with Boulder 2000 series electronics and Transparent Opus Gen-5 cabling) and my favorite track to demo it is "Chimes" by Bruce Stark. There is basically "nothing" in the song (it's a Bösendorfer piano and, well, chimes!) anyone initially identifies with needing "sub-bass", but when you kick the line arrays on you literally get an ENTIRE hidden layer of details, spatial cues, harmonics and decay from the instruments and the "room" the recording was done in that just makes everyone's jaw drop whenever I do it...And yes, I can just about knock my house off it's foundation on EDM and techno music, lol, but that's really the "lowest hanging fruit" with the 6-pack's capabilities.
I tell everyone you just have to experience the REL line array to "truly" understand it but once you do it'll damn near impossible to go back to just a pair of subs, lol.
What happens if you setup an array with the exact same settings? Do all three basically couple to each other and act as one giant sub? And then what does auddessey room correction do if there are two sub outs? Is it basically trying to correct whatever sub is connected to the reciever, making it out of sync with the other two subs? Or does using the xlr cable between subs ensure the same signal from the processor is repeated to each sub?
Thank you for reaching out. When you have a chance, please write in to contactus@rel.net and we will be happy to answer any questions which you may have about setting up or tuning a line array of stacked REL subwoofers.
Hi, thanks. Is a line array of 212SX possible (in a big room of course)? If so, can a 4 pack be enough and relevant? Thks
Thank you for reaching out. The 212/SX subwoofers are not designed to be stackable. If you are interested in stacking REL subwoofers in your system, in what we can a line array configuration, then we recommend using the S/510, S/812, HT/1510, Carbon Special, No.31, or No.32 subwoofer models.
Where do you listend? At your seating position? Or next to the subwoofer? I have magnepans so theres coming sound from the back of the speakers also
Thank you for reaching out. Most of the critical listening should be done from the primary listening position, though some of it can be checked while standing just next to the subwoofer(s) and your main loudspeakers.
Love this but CDO i mean OCD im feeling anxious just thinking about me tuning over and over mannnn
hi, I have 6 REL subs but they vary in size 8" , 10", 12"....should I place the bigger ones at the bottom ?
When stacking REL subwoofers to form a line array, each subwoofer should be the same matching model. This helps to ensure that the complete stack is sonically coherent from top to bottom, and that the speed of each subwoofer is a perfect match. In addition, only select models in our lineup are designed to be safely stacked, these being the S/510, S/812, Carbon Special, HT/1508, G1 Mk.II, and No.25.
How loud are you listening when making the original adjustments to gain and crossover
Thank you for reaching out. We do not have a specific recommended dB SPL setting to use when tuning subwoofers, though the system should be running loud enough to clearly hear how the subs are interacting with your main loudspeakers. Usually playing the system slightly louder than your usual listening levels will work well.
The explanation of line array setup is very helpful. I am certainly no expert, but curious about the following.
1. Is the distance of a driver from the floor important? If so, why? I note a stack of 15 inch woofers is much higher than 10 inch woofers.
2. If the mid level sub is the fulcrum, why not dial that in first? It will roll off at a higher frequency than the bottom sub, therefore the bottom sub crossover would be set to blend with the mid level sub roll off.
3. Could the balance and gain of the mid and high bass be achieved from 1 sub using DSP PEQ rather than a sub for each frequency band?
4. Wouldn't the bass be cleaner with the subs placed close to the wall behind to minimise blurring from sound reflecting off the wall? DSP could be used to delay the mains to ensure impulse synchronisation/phase.
5. Is there interference (cancellations etc) between the drivers in an array?
6. If bass is omni directional, why is toe in relevant?
7. With all subs reproducing almost equal bass frequency bandwidth but in difeents ways (roll off, crosover, gain), wouldn't the overall response feature peaks rather than be than flat?
Cheers
Thank you for reaching out, and for your interest in REL line arrays. We will be happy to answer your questions about subwoofer line arrays, though based on the nature of your questions it will likely be beneficial for other members of our team to assist. When you have a chance, please write in to contactus@rel.net and we will be happy to answer any questions which you may have about REL line arrays.
@@RELAcoustics i imagine the answers will be of interest and benefit to many others who watch the video and read the comments, so perhaps it would very beneficial for the various REL technical experts to provide the answers here?
Is this the same tuning method used when used in a home theater system?
This same tuning method can be used in home theater systems, especially during the begining of the video when he is focusing on tuning the bottom subwoofers in the stack.
Which track is it where you're listening for the "double skin" sound on the bass drum, please? Is that "Sneakers" track 4? ("Cosmo...old friend") TIA!
Thank you for reaching out, and you are correct that our recommended subwoofer tuning track is "Cosmo...Old Friend", which is track 4 from the soundtrack to the movie Sneakers.
I found a local Dealer hear in Germany who sells REL subwoofer. Do REL ensure that the vendor knows this many important positioning things?
We do our best to ensure our dealers are properly trained by sending representatives to the various locations worldwide and also provide them with these videos as well.
how does one tune for LFE w/out blowing the high-level settings?
Thank you for reaching out. All REL subwoofers that feature the High Level input have a separate Level control for each of the High Level and .1/LFE input, which allows you to adjust the output levels independently for LFE after the High Level input has been set.The Crossover control on these subwoofers only adjusts the High Level input signal, since the crossover setting for the LFE input will typically be set within your AV receiver.
We hope that this helps, but feel free to let us know if you have any additional questions or concerns.
Hi guys ! Interesting, however, my room it's too small to accomodate 6 RELS. I'm thinking instead to only build one tower ( right channel ) instead of 2 towers, Would that work , what do you think ?
Thank you for reaching out, and for your interest in REL Acoustics subwoofers. If you are unable to accommodate a full six-subwoofer line array in your room then you will likely get improved performance by using two subwoofers in a stereo pair configuration, rather than a single three-subwoofer stack. That being said, when you have a chance please write in to contactus@rel.net and we will be happy to discuss subwoofer options for your room and system.
if I have a double stack. can I just put the speaker on top of the stack to get perfect alignment ??
It is possible that we will add this ability in the future, though at this time we do not recommend stacking a main loudspeaker on top of a two-subwoofer line array stack. This is in part due to the risk of damaging the speakers due to them falling off of the subwoofer stack, and also because the ideal location for the main loudspeakers will oftentimes not be the same spot that the subwoofers are placed.
I see your trying to Goldmund your system 😄
one day I will have these
I'm assuming this can be done with the new TX line?
Thank you for reaching out. The Serie T/x subwoofer models (T/5x, T/7x, and T/9x) are not designed to be stackable in line array configurations. This is primarily due to the compact size of these subwoofers, which when stacked are not stable enough to prevent the stack from toppling over if bumped into. At this time, only our S/510, S/812, Carbon Special, HT/1510, and Reference Series models are designed to be safely stacked.
Not that sure what your doing when there's no music I'd love to know how to set up rel sub properly I have an older stentor 3 which is nightmare to set up right
While we do not have music playing in the video, since it is extremely difficult to accurately record the output of main loudspeakers and subwoofers, there should of course be reference material playing when tuning the subwoofer.
If you would like setup or tuning assistance for your system, please feel free to write in to contactus@rel.net and we will be happy to assist.
That looks like so much fun to do. Time to save my pennies.
Can I confirm when you’re listening to the timing when setting up placement, you listen at the location where you’re setting up and not at the listening/seating position? Is that correct?
Thank you for reaching out. When making adjustments to the placement of the subwoofer relative to your main loudspeakers, we recommend first listening from close to the subwoofer so that you can make adjustments to it's positioning if needed. Once a good position has been found, you can then move to your main listening position to confirm that things are sounding good and blending well.
@@RELAcoustics ahh got it! Thanks for the reply 👍🏼
In 9:30, when you unplug it, you had previously connected it to the amp as a stereo set up or only to the left channel? I mean are you listening only the left channel and the sub connected to it?
Yes, you would unplug the Speakon connector or just turn off the first subwoofer and only listen to the left subwoofer. Your speakers should remain connected throughout the entire process of dialing in a line array. Hopefully that answers your question.
Let me get it straight. You have connected both subs to the power amp, each sub to each channel or you have connected only one sub to the poweramp with stereo configuration and then you unplug the Speakon connector from the left sub and plug it to the right sub?
@@Cleric996 The subwoofers will be connected to your amplifier in stereo, with one being connected to the left channel outputs and the other being connected to the right channel outputs. During tuning, we recommend focusing on adjusting each subwoofer individually to start, meaning just tune the left channel sub on it's own and then tune the right channel sub on it's own. Once they are each sounding good and blending well on their own you can run both and make final adjustments as necessary to their Level controls.
@@RELAcoustics Thanks a lot!
Hi Rel, I was wondering if your next Generation HT line subwoofers going to go lower in frequencies, and also would you consider using dsp just for the ultra low frequencies only. For example down to 20-22 hz analogue and below 20 hz DSP. Best of both worlds. I am sure if you did use DSP you would be using it more effectively than anyone else.
At this time we do not have any information about potential future generations of our Serie HT subwoofers, though it is possible that they will reach deeper than the current models.
That being said, at this time we do not have any plans for including DSP in any of our subwoofer models. In our experience DSP can add additional latency to the subwoofer's output, which can negatively impact the subwoofer's ability to blend with your main loudspeakers.
Do I need the blue-tak for this? Lol
How do you hear for the correct location when you're not in the listening position?
You can usually get fairly close by being just next to the subwoofer, especially when it comes to getting the timing synced up with the main loudspeakers, though you are correct that most critical listening should be done from the primary listening position.
What sound or music did John play and listen to when he was next to and moving the subwoofer? I watched that section several times and still do not understand.
@@ryanwu685 As mentioned at 4:25 in the video, we recommend using track 4 from the soundtrack to the movie Sneakers (titled "Cosmo...Old Friend") as reference material when setting up and tuning subwoofers. Here is a link to an article from our website which goes into additional detail regarding this track: rel.net/blog/2018-10-29/system-thinking/subwoofers-tuning-tracks/
Can a line array be done with the REL T7x or T9X??
Thank you for reaching out. The Serie T/x subwoofers (including the T/7x and T/9x) are unfortunately not designed to be stackable in a line array configuration. This is primarily due to these subwoofers not being large or heavy enough to form a stable stack. At this time, only our S/510, S/812, Carbon Special, HT/1510, and Reference Series models are designed to be stackable.
So they all play the lowest bass frequency? And the higher up on the stack you go, the higher the cut off feequency?
Thank you for reaching out, and that is correct, though the upper units in each stack will not reach as deep as the lower units since they will not be directly coupled with the floor.
@@RELAcoustics cheers for the reply.
When it's connected via the high level connection, that would mean that my speakers run in full range though right?
So bass would be coming from my floor standers AND the rel sub?
I've got Focal Kanta 2's, and I play 2 channel music through an integrated Rotel S14 amplifier.
I'm considering buying the two Rel s812 subwoofers. And I want to confirm that in a 2.2 set up, Rel's recommendation is that I would still run my Kanta's in full range, and run the 2 Rel subs in stereo and have bass coming from the Kantas as well?
@@rasta.j Thank you for reaching out. When connecting REL subwoofers using the High Level input it is essential to set the corresponding main speaker channels to "full-range" or "large" output, so that both the main loudspeakers and the subwoofer receive a full-range signal with no filtering applied. The subwoofer's Crossover control will then be tuned by-ear to just below where the main loudspeakers naturally roll-off in their own low-frequency extension in your room. When tuned well there will be minimal overlap between the output of the subwoofer and that of your main loudspeakers.
This method applicable to a dual subs set up?
Thank you for reaching out. The instructions outlined in the beginning of this video (for the first/bottom two subwoofers in the line array) will also apply when setting up a stereo pair of subwoofers.
Can you recommend another song to use? Don’t have a CD player and the song isn’t on Apple Music…..
If you are not able to use "Cosmo...Old Friend" from the Sneakers soundtrack in your system, then any recording that you are familiar with that has deep and consistent sub-bass impulses will work well. Ideally the recording should be primarily acoustics instruments, rather than electronic music with synthesized sub-bass, since your ears and brain will have a better frame of reference for what sounds "correct" in terms of subwoofer tuning settings.
So is this a 5 way configuration
In a sense the line array setup shown in this video does act as a five-way speaker configuration, though it does function differently compared to a true five-way main loudspeaker.
Tried that Sneakers track…what the hell? What little bass is in that track is sporadic and way in the background, played through dual T5i REL subs already well set up. Puzzled. Maybe someone csn suggest a track with a solo bass line played low and clear
Same here, I thought there is a mix up…
Greetings,
Besides safety issues, why not add another pair of subwoofers and make it an 8-pack?
If bass moves vertically, as John has stated in previous videos, why not add a fourth subwoofer if one desires so?
Thank you.
Adding a fourth pair of subwoofers to your line array can work well in significantly tall listening rooms, though in the majority of listening rooms a six-subwoofer line array offers the best possible performance.
Can you do a setup with 1 und 2 subs in a room, too? A real setup would be nice. Those subs are not connected...i am rly struggling to setup my new s/812. Either I have badass base but it hurts my ears over time or my ears are ok but i lose the badass experience...
Thank you for reaching out. We will forward this feedback to our marketing team for consideration with future videos, though in the meantime the instructions outlined at the beginning of the video for the bottom two subwoofers will be the same as what should be done for a single or stereo pair of subs.
If you have any specific questions about subwoofer tuning for your system, then feel free to write in to contactus@rel.net and we will be happy to assist.
The mains in this video are not connected so this is a "dry run" . . . nevertheless VERY instructive ! thank you!
There´s only one thing that´s stopping me buying a 6 pack, having absolute perfect pitch i want to hear EVERY single bass note. I´m looking at Velodyne DDplus series where i can fine tune with DSP so that every single bass note can be tuned to my listening position . My listening room is full treated. How can you fine tune with DSP or perfect pitch?
I would not recommend Velodyne any longer.
At one time, they were the undisputed leader in home audio subwoofers... and that lasted 15yrs or so. Now, their focus is elsewhere, their sub tech is dated, their offerings way overpriced, and most importantly their service customer support is poor.
I've owned multiple Velodyne subs since early 90's. Unfortunately, it's simply not the way to go any longer.
You'd be much better off with JTR, Rythmik, of course Rel.
Instead of feature set (dsp, room optimization), focus on core performance... ie., low distortion, high output.
DSP, and system optimization tuning etc, is constantly evolving, and ideally addressed outboard of the sub.
Please send me 6 Carbon specials. Thank you!!!
Let's do line array, and pay us ten grand!
i just get a pair and put them in the left and right corner of the room so my wife does not get mad.
Maybe if you used DSP with adjustable time delay, you wouldn't have to do all this physical moving around nonsense
Or ideally implement both, ie., physical optimization first, then further tune via DSP.
@@FOH3663 😮😢😅😅😊😅😮gv 1:59 😅😊😊
I was face palming throughout this video.
@@FOH3663yup. Basically need dedicated six channel minidsp hd like unit, self calibration, of levels, phase and then summed subwoofer frequency response then EQ
Doesn't solve the issue with avr setup that would only be for hifi. Where you send subs full range.
Avr setup would need different settings.
But set speakers to large? Bye bye drivers . Bad bad advice.
@@user-gf7kj5vj3p
Right ... I was simply pointing out it's best to do it all;
- physically move them around to optimize the best loading/coupling
- plus pull down resonant energy peaks via EQ'ing, and manipulate the time domain
For various reasons, all too often enthusiasts don't move subs around, ie., exploring and measuring the best sub location.
Huge amounts of headroom is gained by finding the ideal spot.
The video is ridiculous.
Since the crossover frequencies are not the same for the individual subs, the phase is also different between them. This entire setting up meter long wavelength devices a millimeter back and forth seems nonsensical.
In our experience, even though the Crossover settings will be slightly different between each subwoofer in the stack, the phase switch settings will remain the same for the three subwoofers in each stack.
Rel is UK just remember :-)
Am I the only one who finds the bookshelves comically small vs the subwoofers😅
A full six-subwoofer line array is most commonly used with larger floor-standing speakers, though even small bookshelf speakers like those shown in the video can benefit by the addition of a subwoofer line array.
If you have any additional questions about REL line arrays then feel free to reach out and we will be happy to assist.
Is he acting? Like showing you what you should be doing when tuning your system? Or is he listening to something that we can't hear?
In the video there is no signal being produced by the subwoofer line array or the main loudspeakers, since it is extremely difficult to accurately record the output of a full-range stereo system to where you can hear the changes to the crossover and level settings in a CZcams video. In the video, John is using his experience setting up countless subwoofer line arrays to show you what you should be listening for and how you should go about tuning a line array of REL subwoofers.
This is just a ridiculous attainment for your average person.