Add 1 or 2 more subwoofers in different locations (if moving your subwoofer doesn’t help).

Full 3d sound field replication is the goal.

This includes imitating acoustic parallax so that 3d depth is preserved with head movement.

I’ve been an audiophile for 40 years. I have owned vinyl, cassette, digital discs etc and appreciate all the formats.

My preference is lossless digital.

At the same time, I love vinyl for the ritual (cleaning, storage, large graphic, packaging, etc). The sound is typically not as dynamic as digital since the mastering must roll off the vinyl bass to prevent the needle from jumping.

Yes, for me:
I’d like to replicate what the mastering or recording studio artists and / or mastering engineers were hearing in the studio or live venue.

For example, I was watching a video of one of my favorite artists in a professional recording studio and they had a nice pair of Genelec monitors. I couldn’t see the room details but it looked like they had nice room acoustic treatments too.

Also remember that different mastering studios have different house curves. So your system might have to be adjusted to get closer to the house curves of the mastering studios of the original recordings. For instance, DM or Bowie’s mastering studios may have been bass-heavy. As an illustration, a car has a natural bass-heavy transfer function because of cars’ small size; perhaps that’s why those recordings sound great in your car.

Wow, thanks for the great insight: The room IS a speaker box; and it’s the final acoustic filter and distortion source before the sound enters your ears.

Put it that way and it becomes pretty obvious that the room is either the top factor or a top factor in determining sound quality.

1st will be the room and room acoustics. Room and room acoustic treatments will be the most important part of the audio / acoustics chain. Poor room acoustics can distort the frequency response by more than 20dB. And in the time domain can improperly decay the sound more than a couple HUNDRED milliseconds.

2nd will be the speakers. Frequency response deviations will typically be on the order of 10db or less. With distortions in the time domain less than 10 milliseconds.

3rd: Near the least important components will be the amplifier, cables, and wiring with frequency response distortions less than 0.5dB and time domain distortions well below 1ms.

The cool thing about the room and room acoustics being #1, is that you can improve it incrementally and doesn’t have to be done all at once.