There is the Spendor A1 listed here for $1500. Same sealed design like the 4/5 and can be placed on a bookshelf. I’ve owned many Spendors including the A1s and the 3/5r2s ( pre 4/5s ). BTW, any LS3/5A type of design should do the trick! The Harbeth P3ESR was my favorite of that type of speaker!