While the needle had been firmly inserted into my arm for some 15 years, Accoustat 2 + 2s knocked my socks off in my new (to me) home (now here 26 years) with large listening room, terrazzo floors, and 12ft high open beam ceilings. The main issue is the listening area is 21 x 35, but due to the room layout, I have to sit at ~ 15 ft from front wall, so zero back wall reinforcement. But WOW they filled the room with sound. Alas, while the Accoustat tube servo amps sounded way better then the interfaces, they were prone to glowing tubes (in recent years mods available that makes them stable). Lots of really good speakers later, I have had Emerald Physics 3.4s for ~ 2 years, which comes close in wonderful room filling sound with my LSA Voyager GaN 350 amp, Audio Alchemy DDP-1 + PS 5, Audiolab CDT6000, and recently replaced the complete array of really good cables with Ali-Express Nordost Odin 2 knock-offs. Look them up, you won't believe the prices, or how much they CAN improve your enjoyment. I stuck my toe in the water replacing a Pangea Premier XL coax (MSRP $169) with the Odin 2 for less money. Quality is extremely high and the improvement was jaw dropping. I then got a power cord and XLR interconnects, then more power cords and finally speaker cables, which replaced ~ $8000 cables tieing it all together. With quality recordings, the sound is very holographic and I feel transported to the venue
hth