Hello,
All of the speaker suggestions are good. I have had the privilege of demoing the Revel line in my home. The interesting fact is I found they are very forgiving to untreated rooms especially the BE line. I started with the bookshelf speakers M126be and was blown away how good they sound. I do have two REL subs to help with the bass. That being said even the 228be speakers disappeared in my room. My room is 24’ x 14’ and they did create a lot of bass with a good 100w amp. I agree with the remark above to try the 226be or the 6 1/2” driver version to still get a true three way speaker. If $7k is out of the budget go with the M126be at $4k with subs. The Revel stands are $500. Since you have the Revel 106s you might have the correct stands to mount the bookshelf speakers too. You get 90% of the sound of the 226be at $3k less. The store in the Chicagoland area that let me demo them in my house is https://holmaudio.com/
they let you try before I buy. They also take trade ins so you can offset some of the cost.
All of the speaker suggestions are good. I have had the privilege of demoing the Revel line in my home. The interesting fact is I found they are very forgiving to untreated rooms especially the BE line. I started with the bookshelf speakers M126be and was blown away how good they sound. I do have two REL subs to help with the bass. That being said even the 228be speakers disappeared in my room. My room is 24’ x 14’ and they did create a lot of bass with a good 100w amp. I agree with the remark above to try the 226be or the 6 1/2” driver version to still get a true three way speaker. If $7k is out of the budget go with the M126be at $4k with subs. The Revel stands are $500. Since you have the Revel 106s you might have the correct stands to mount the bookshelf speakers too. You get 90% of the sound of the 226be at $3k less. The store in the Chicagoland area that let me demo them in my house is https://holmaudio.com/
they let you try before I buy. They also take trade ins so you can offset some of the cost.