That’s one of very few things I don’t like about my REL. It sounds terrific but one should get a better setup process for the money in my opinion.
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That’s my rationale as well, but I did not approach it with math, just happy it met in the same place.
Rel said 50Hz is the mid point and I’m set at the mid point between 30 and what would be 50 according to Rel. Since it’s not linear it’s an educated guess but I used a low frequency labeled tone sweep recording and used it with the speakers and the sub off, then unplugged the speakers and just had the subs on and listened for the point where the sub gain a volume and maintain it since there’s a slope built in. With tuning you can get the downward slope loss of the main driver and the downward slope of the sub to add to each other and wind up with a smooth transition. between the main driver and sub.
Basically about a foot or so deeper into the corner of the room, so not far from where I have them now but the corner makes a big impact down low.
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I’ve gone back and forth with my REL subwoofers in my smaller room often, taking the wooden blocks off and running them straight on the carpet. My subs in the main room went onto subwoofer stands and have been preferred that way since, same w/my sub that brings in the bottom end on my desktop set-up, massive butcher block under it and i honestly prefer how it hits that way.
My smaller room w/ its thick berber rug though i have found myself going back and forth. This room has different resonance from the other rooms and i like the slightly softer bass output the subs seem to have coupled directly to the floor. The bass feels a bit tighter using the large butcher blocks under the subwoofers, which by the way have passive radiators under them. Sometimes i prefer the tighter bass, sometimes i get in the mood for the “thicker” sound without the butcher blocks. 
It’s a thing though, don’t take my word for it try it yourselves. No need to spend big money on butcher blocks, order a pair from IKEA, they do the job…
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NOOB QUESTION - First decent sub Ive gotten
The SVS 2000 pro, its awesome and I wonder
Ive seen several feet for many products, like those Gaia, but these seem like a bang for buck, regular rubber feet…
Does this actually do something?
(Very sorry if asked before)
…
And I have a second question
My room is around 4 by 5.5 meters, with a medium height ceiling, I measured the volume and it seemed the SVS DB2000 was more than enough to feel the room… And it does!
however I have a hunch that sound could improve with dual subs, even for this room size.
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I had to use them on my big Monolith HT subwoofers to help them stop radiating the bass through my hardwood floors as badly as they were, they came with 6 small rubber feet each which just didn’t do much to help isolate them at all. These feet helped a bit, yes.
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Thanks, and also glad to read from you!
Im gessuing because my sub is not an absoluted 40kg behemoth getting the 4 pack will work wonders for me 
Which only leaves my second question; do I really need a second SBS 2000 pro.???
Dont get me wrong, the sub is incredible by itself, but im getting an extreme itch that adding one more would leave me to subbass paradise
Whatcha think?
I’m somewhat split on my reasons so let me speak and make what you will of it please. 
In my HT, big 2 channel and small 2 channel i use dual subs tuned and spaced to give me a nice strong center image of bass output. I run the HT a bit hot, the big room a bit hot and the small room is tuned purely for fill, depth and space. 2 subs work well, they allow me to get over my OCD and FOMO.
On my desktop and smaller HT set-up i run single subs tuned a bit hot and tight for center image, i demand a strong sub bass presence on both these systems and by spending a good amount of time doing the sub crawl and having the luxury being able to place them where they needed to be i have all the sub and mid bass i desire for both these set-ups.
I’m trying to be extremely honest and transparent in my answer to you. My OCD demanded i add dual matching subs to my main rigs once funding was available. When listening at lower volume the dual subs help a bit at maintaining a touch more low end impact and allowing me to leave their tuning alone. Are they absolutely needed? No not necessarily, not for 90% of my listening pleasure and conditions. When do the dual subs really kick in and make their presence known? Higher volumes in my home, when i decide to kick things up a few notches the dual subs make for a much livelier, wall shaking and chest thumping presentation. As a matter of fact in my larger 2 channel rig i also have a 3rd subwoofer of different make and manufacturer which pushes 1000watts to dual sealed & bandpass enclosed 15’s for an even greater sub bass presence which tends to be of a pronounced nature for certain genres of music when i find the need/desire for it.
Clear as mud? 
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I actually totally get what you mean
My itch is not as bad as a FOMO or OCD but ever since I got my klipsch Ive been running dual sub and now that im using just 1, even though its reaches lower and its 500w I still have the empty space where the right side sub was, and because I listen mostly at lower volume Id like to reach a bit deeper and I think the investment is worth it.
Like you said im about 90% satisfied with my current sub which is more than enough so Ill only get a second one when I have more than enough money to spare.
Thank as always!
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I have fried my third subwoofer amplifier, this one took me about 6 yrs +/-. 
You folks all do you, but at this point I will be powering down my subs if i know i won’t be using them for a few days. These things weigh over 100lbs, and my poor back aches just thinking about moving it to access the amp, being careful to pull things apart and then who knows if my repair tech will be able to swap the burnt components or how many months it’ll take him before he even looks at it. Running subs in pairs kinda helps a bit in situations like this, so there’s another plus towards using at least 2 subs.
This was my input and thought of the day for the forum 
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I know this comment comes late af but those monoliths may still live rent free, or whichever it was.
Now that I got the dual the SVS SB2000 pro subs im completely satisfied with the sound and setup, its amazing, reaches low 30s, tons of punch, but the best part I wouldnt believe until I tried, their app:
-presets
-peq
-subs sync and settings
-crossover and volume control
It takes me 5 seconds to get right a record that needs just a bit more bass and vice versa, 5 seconds to switch my theater config; and very importantly I can change the preamp and or power amp and have the subs sounding golden within 5 minutes.
…
Amazing, but I have a huge itch to try REL or Rythmik because of their reputation. Its a huge curiosity that tells me as much as I like my SVS this would be an upgrade for my taste.
Id heavily prefer to try a pair of RELs since they have distributors here unlike Rythmik.
I have my eyes set on either duals t7/x or t9/x, do you guys think this will be an upgrade from the dual SVS 12" 500w? what im looking for is a more musical, deeper, cleaner, less boomy sub experience.
Given the size of my room dual t/7x would be enough to fill it, but it may not be enough to feel enough of an upgrade vs the SB2000. Spending less would be great tho.
Whatcha guys think?
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Subs are a very personal thing, since what people look for is going to be very particular, not just to their tastes but to their use case and room.
If you’ve got a “boomy” sub, reduce its volume and play with both placement and crossover points and slope. I’ve never heard an SVS but given their market point I wouldn’t expect them to be boomy unless you wanted it that way.
Rel are very much marketed towards audiophiles but I’m not sure they’re the last word until you get towards the S series. I’ve been happy with my dual T5/x as the smaller driver is tighter than the larger drivers, the tradeoff is that it won’t go as deep.
That said though I’m okay with a sub that doesn’t make it into the twenties since I only use mine for music. But getting back to you original question, one sub is plenty for your size room. A second sub won’t add bass, what it will add is more dimentionality and information about the space where the music was recorded. It will also allow for easier placement and integration since there’s more setup flexibility with two subs. It could also add even more “boom” if not integrated well.
When it comes to subs, at least in music I always treat them as less is more. They’re there to augment your speakers, not to be seen above your speakers. The best gauge of a well integrated sub in a 2-CH system is when someone asks you “are the subs are on”. lol
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Yes exactly, this is why I feel im missing out by not trying other great models since the only good ones ive heard are SVS, I love them but I want to know if I could love REL even more
Sorry this came out wrong, I described it terribly, not boomy at all, I meant punchy in a good way. What I wanted to express is that it can be hard to make the subs disapear which ive read is a common experience for REL users (can also be done with SVS but these lean a lot more towards punchy fun than elegant). I often hear the phrase REL T/x series being way more musical, even when compared to the HT series which are supposedly closer to SVS than T/x.
Same
Its 100% OCD, although spatial information can be improved according to higher end sub users I just like the symmetry.
Thats exactly why I wanna try REL as good as SVS are, however, Id like some validation from some that tried both before making any purchases, I currently cant have both, id have to pick which sucks.
The i and x series REL will NOT give you the nifty control your SVS subs provide. They will not provide “tighter” anything, nor will they disappear any better. If you can’t do the sub crawl and get your SVS subs dialed in enough to disappear in your room the REL will more likely than not give similar performance. Can i assure you the REL will not provide you more satisfaction than your SVS? No absolutely not, if you have the money just sitting around feel free to double what you spend but don’t necessarily expect double the performance. Have fun, happy listening and good health in the New Year 
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Forgot to mention in my original response, subs are harder to flip, the shipping costs just make them prohibitive.
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Then please let me see If I got what you said right
I can confirm the control is nifty and my satisfaction is there and theres a lot of it. Its more FOMO and curiosity, one of the main factors is that in this very thread, theres a ton of mentions of REL and JL Audio, but barely any SVS mentions which psychologically makes me think I have something inferior even tho its not true.
Yup, if I had the money to flip I could easily test, I dont, thanks for making things clear for me
and yet another reason.
Thanks to both for guiding me to reason
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I’ve used this app (and got good results) to calculate best position for sub:
it’s not always where you’d expect ( or want) it to be.
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If you have dual subs and you use high level signal input for them, wire them thus:
I hadn’t bothered to because my previous speakers simply wouldn’t have been a straight forward wiring thing but it is a recommended best practice from Rel. There’s plenty of room in my new speakers and the WBT terminal easily accommodated the wiring. What an immediate improvement, it’s as if the sub inherited the characteristic of the speaker cables. Perhaps the most impactful low dollar change I’ve ever done.
This is best implemented with dual subs as a single sub would be a bit cloodgy to wire.
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