The Sony TC-FX2 is an analog tape cassette recorder that was popular in the late 1970s and early 1980s. It features two high-torque motors for smooth running and rewinding, separate output volume adjustment for each channel, and a Dolby B noise reduction system for clearer audio reproduction. Some models also have a pitch control function, allowing for slow-down or speed-up of recorded audio without affecting pitch. The Sony TC-FX2 is known for its durability and reliability, and is still sought after by audiophiles and collectors today.