I bought my RS 202 back in 2018 for a measly $100, and it was probably the best spent $100 I can remember. I have owned numerous integrated, stereo, and AVR’s through the years, and this little Yamaha was more of a whim- very inexpensive and somewhat attractive looking. I have played it with full range towers and multiple bookshelf speakers; some rated at 4 ohms and 85 dB efficiency, some fairly challenging speakers, and it not only played music quite well, in my opinion, it barely worked up a sweat doing so. It was not designed to run low impedance speakers, but I did not care because of the low cost etc. Mind you, these performances were for hours, weeks, months, and now years. I never drove it to max volume, or run two pairs of speakers at the same time, and I keep the RS 202 on an open table. These things will shorten the life of the amplifier. Is it the best amplifier I have owned, maybe not, but for the money nothing comes close.