Speaker for 11x12 room

+1 on the Joseph Audio. I’d also consider Totem Element Fire V2 or the Fritz Carbon (all used, of course). But that’s for my tastes. What do you want out of a speaker or e correctly, what audible characteristics do you aspire to in your music reproduction system?

And you have a really great amp.   It deserves equally great speakers.

I have the same room and used the KEF LS50 Meta and KC62 sub to excellent results. I replaced the speakers with Magnepan LRS+. I needed some very powerful amps to run the LRS+ (unlike the LS50 Meta). I use a Sanders Magtech or a CODA #16 for the LRS+.

The LRS+ works great in this small room and it is better then the LS50 Meta. The soundstages is bigger, more depth and wider.

However, since the OP has a piano also in this room I cannot recommend the LRS+. I would go with the LS50 Meta

 

Actually, since the piano stays, you would be better off getting a RAAL SR1b earphone and the TL-1B interface box to use with your existing amp. It is better than the LRS+ and the LS50 Meta. However, it is not room speakers.

For your 11’ x 12’ room, a pair of Philharmonic BMR Monitors would be ideal.

 

https://philharmonicaudio.com/

 

It is a 3-way design with a SB Acoustics 6-inch ceramic woofer, RAAL ribbon tweeter and a Balanced Mode Radiator (BMR) midrange.

 

They are priced at $1,700 a pair plus shipping.

 

You can contact Dennis Murphy the designer info@philharmoncaudio.com

 

I auditioned them at 2022 Arizona Speaker Fest and rated them number 1.

I was astonished how they blew away the higher priced entries including the ATC SCM 11.

My sentiments were shared by most attendees. It was a runaway success.

 

https://philharmonicaudio.com/images/azavclubvotes.pdf

 

Here are the specs:

 

https://philharmonicaudio.com/BMR.html

 

 

Your ARC REF 75SE power amp ($10,000) is a world class tube amp that delivers 75 watts/channel. This is more than enough to make the BMR monitors deliver their full potential.

 

https://www.tonepublications.com/review/arc-ref-75se-power-amplifier/

 

 

I would recommend zU audio DWX. 

 

@OP, the best placement is what you propose - speakers firing down the room towards the wall where you propose to have the piano. You will still benefit from a curtain on the glass door. You will get some reflections off the piano so it it can go in another room, it would be better. Also, it will allow you to get your chair away from the wall.  And ideally, some acoustic treatment behind you listening seat would be beneficial.

There's a wide variety of speakers that will work in that space so you are not necessarily restricted to standmounts - though you do want a speaker that has good control in the bass and that will work relatively close to the wall. That said, the Harbeths and Kef LS 50s are good suggestions that will definitely work well in the room.