Back in 2010, I upgraded my Klipsch RF-7 III to MartinLogan Purity Speakers. The transparency, depth of sound stage and purity of the music with the ML upgrade was startling. I further enhanced the sound by adding ARC Genesis room correction to the mix. My wife and I enjoyed the sound and look of the electrostatic speakers for 13 years. I was ready for an upgrade and read all of the reviews. At the time, I thought the ESL 9 was our of my price range. All of the reviews pointed to try the Revel F226BE which was on sale for an $1800 discount. I purchased and had a 60 day audition period with Crutchfield. Wow! The old Purity ESL still sounded better than the Revel. Revel is a good speaker but not in the league with an electrostatic. I returned the Revel and went for it (my wife wanted to send the Revel's back and get the ML) with the Classic ESL 9 and still used the ARC Genesis room correction. I am glad I did. The ESL 9 gives you goosebumps. Dynamic: These speakers hit you with a wall of sound! Deep Bass (verified flat to 35 Hz on ARC calibration), kick drums, guitar riffs, .......... They knock you out! The speakers do it with so much clarity (zero distortion) that you hear new details in the dynamic sound. Clarity: It is like a live performance (Metallica, Van Halen, Andrea Bocelli, Norah Jones, Diana Krall, .......). You name it. These ML's deliver. You get all of the nuances the sound engineers and performers want you to hear. Sound stage, low level dynamics, efficiency, ........ I can go on and on. The larger ESL panel line array is another big benefit. If you have a bigger room, the ESL 9 will play much louder and more efficient. I have a big open room and the ESL 9 effortlessly fill it with beautiful music (normal dome speakers lose 6 db of sound every doubling of distance, line arrays loose 3 db of sound every doubling). At our normal listening distance of 14 feet, the ESL 9 are incredible. The is an End Game speaker for me. Thank you MartinLogan.