Miracles in Audio, by luck, by good choices,by design or by tweaking...

If you can listen music at relatively low volume with a clear distinction of tonal timbre accuracy, then,
your room is very good now.....Like mine..... :)

It is not the bass frequencies nor the higher frequencies that must pilot and inform the acoustic work in a room, but ONLY the perception of tonal timbre accuracy... The conditions which you will use to improve tonal accuracy will also improve bass.... The contrary is not necessary true, because timbre tonality is more complex and encompassing concept than bass frequencies only.....Average computer algorithm for room are not made on the foundation of timbre perception.... We need ears for that....And we are lucky because we have free one.... :)

Timbre is itself very difficult to define acoustically because of the many factors playing a role in his perception....

:)

Someone said to me that I cannot have Ron Carter in my room with the speakers i own and the amplifier i also own....

This someone said that without big magnepan with very big amplifier it is impossible to have Ron Carter in my room....

But i have it, not because of my amplifier and speakers choice, they are good, but way less powerful and refined than a big magnepan with a very costly and powerful amplifier....He called my version of Ron Carter in my room, diplomatically, a "miniature"... It is not false for sure but it is not true either....Do i have a complete sound of a bass in my room? Yes....Is it on the exact same level than with the big Amp+ Magnepan.... Not so....But we speak about a low cost gear versus very costly one here.... And my point is this: i am not so far off the costly system with mine than people are willing to suppose....:)

I have Ron Carter in my Room because of the acoustic controls....

Not an electronic costly one, like the brand this person suggest, but with homemade cheap metal buckets "singing resonators" with Herkimer diamond, and my golden plates and some few others devices of my own....

The lesson learned by me is that acoustic controls is the most important of the 3 embeddings and the most transformative and upgrading feature there is in audio....

I know that most will think that i am nut.... But this is my experience....

I will not go on describing more my acoustic controls because i lack patience with peoples who instead of experiments trust only the sellers of acoustic materials orthodox view...Or people who think that bass frequencies is the thing to begin with in room control....

The analysis of sound in a room is more akin to the study of a "cellular organism" living in his own time frame (hundreth of seconds) something i call an "informed wave" than to a set of frequencies only...

Timbre is the embodiment of tonality and timbre is impossible to understand in term of frequencies only....Room controls is first and last the controls of timbre  expression.... Not bass nor higher frequencies ....But it takes very good speakers to begin with to express timbre in a perfect way for sure....But without room controls most speakers will not gives their best at all....

I will not go forward anymore....

Arguing when the world crumble is not the thing to do....

My best to all.....

These are great on top of components and shelves, and on transformers.  They come fully assembled, too.
Great value.

https://www.aliexpress.com/item/1005001302651100.html?spm=a2g0s.9042311.0.0.7f7f4c4dgrVxHm

These are great on top of components and shelves, and on transformers. They come fully assembled, too.
Great value.

https://www.aliexpress.com/item/1005001302651100.html?spm=a2g0s.9042311.0.0.7f7f4c4dgrVxHm

So these go under components to support them or loose on top?  Any idea what weight they support under a component?  I can understand the isolating effect underneath but what do they do if placed on top?

These are great on top of components and shelves, and on transformers. They come fully assembled, too.
Great value.

https://www.aliexpress.com/item/1005001302651100.html?spm=a2g0s.9042311.0.0.7f7f4c4dgrVxHm

They are very good and cost nothing.... I bought them and the results are amazing...

BUT the adjustment by ears takes few days, and must be finetune with a load (this is more precise than taking off springs if you can). The fine tuning of the load must be around 1and 2 % of the compressing load...They must be highly compressed, with the speakers i place on them around 80 pounds.... 

You must listen to TIMBRE to adjust them optimally not towards high frequencies or bass one, but toward natural timbre....Too much high means they aure not enough compressed, too much bass they are too much compressed....The right compression will be audible with 1 or 2 pounds variation of load near their optimum.... And the timbre will be at his best....