A little help please


My room is 13' x 21' x 8.5' ceiling. Speakers are located along the short wall about 12-18" off the wall. They can't come out as they'll block an entrance way.  They are about 4' from the side walls. 

Currently I have a Prima Luna Classic Integrated with their standard tubes. Source is Rega Apollo R, MMF-5/Clear Audio Nano V2, or Proton DAC. Speakers are Totem Arro (no mass laoding).

I realize that my placement isn't ideal and my wife's need for decorating balance with furnishings,etc require some trade-offs but I just don't think these speakers are up for the job in some cases. Some songs, like acoustic blues, female vocals, even piano sound great but I'm sometimes finding other recordings seem to sound muddy and there's no real pop and umf on some drums; like I'm hearing music but not feeling it some times.

The totems are not mass loaded. I have heard that mass loading them will tighten up the bass. I could also try some different tubes, but overall I'm not sure either or both will make that big a difference. Which leads me to a discussion of a sub or some new speakers.

I lean towards new speakers.

Possibilities (depending on what I can get my wife to agree to in price and size) are:

PSB Imagine T2, Quad 25L, Revel F206 - As noted above there are decorating issues. A sofa is located about 2.5 feet in front of the right side. As it is now imaging is good, my concern with these is they all have some low driver positions that will be an issue unless I can relocate. Relocating to the long wall is an issue because I'd have to straddle a working fireplace as well as other considerations. 

A larger Totem Forest - leaves me wondering if I'll have similar issues with bass.

Audio Physic Tempo 25 (NOT the plus version) - demo from my local store.

Vandersteen 3A - Signature - also demo from my local store. These are likely too big for my wife's taste; and quite possibly my amp.

 
 One thing I didn't note so far was the possibility of a sub-woofer.  I'm not thrilled with the idea but I haven't given it an ear so I can't say.

Thoughts anyone?

Thanks for reading and taking the time to respond, Jetson.
jetson
On the other side of the coin - If the PL plays well with the Sig 2 (either model). I could skip the amp upgrade and look to upgrade source.  I could sell the Rega, buy an iMAC and upgrade the DAC. On the plus side I also have a new laptop.
Funny you posted that as I was typing the above about keeping the PL.
I like the way the PL sounds, I guess I'm power shy having been bitten with the Arro issue. 

I'll know a lot more tomorrow when I visit Audio Connection.
Here is another options pieced together.

The sig 2 with  a Demo Cary CAD-120S MkII for $3900 and as yet undetermined Pre-amp.  Keeps the tubes and leaves me with a path forward towards the Quad or other speaker in the future.

Like I said, I'll know more tomorrow.
Ayre / Vandersteen is a great combination - my 3A Sigs are matched with an Ayre AX-5 Twenty. The dealer loaned me an AX-7e integrated amp while my amp was being updated and I thought it sounded wonderful - powerful enough for movies and refined enough for music. Hopefully you'll be able to audition them together before you make any decisions.
Totem Hawk and Revel F208 are both real nice sounding speakers.  Your wife might like the size of the hawk better than the F208's.  I love the sound on both.