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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