I was very impressed with Aperion 4Ts in 2009 after reading great reviews. I was then in India and wanted to purchase a pair and take them over on a flight to India, but this never happened. Even to this day it’s hard for me to believe I was a fan of the 4Ts even though I had never heard them. I finally bought them in 2017; I am now in US. I have evolved as a music listener. In my early years of critical listening, I liked a lot of music rendered with over emphasized boom. Then slowly my taste changed to music that filled the soundstage completely with guitar sound, people usually call it rock or metal. Lately, I have started listening to classical flavors. In this evolution what stayed constant was my passion to hear the tonal balance of instrument sounds and vocals. Flat sound is the perfect sound to hear and that is where 4Ts excel. I have auditioned many speaker setups of different speaker manufacturers and their sound comparison has taught me the importance of the source of music, the amplifier and the speakers. I can say these are the best I have heard so far for a practical room size. The treble and the midrange are exceptionally crisp and flat. The benefit of cutoff at around 60Hz bass frequency is how loud you can listen to music for hours without feeling any ear fatigue. The louder you play the 4Ts the more resolved is the accuracy, three dimensionality of the sound alongwith a huge soundstage. Rock solid rendering of the vocals really makes the 4Ts stand out, indeed great engineering. The instruments sound so pure. I highly recommend the 4Ts for a stereo setup for music listening.