For a single cassette deck, it doesnt get much better than the Sony TC-KA1ESA. This machine has just about every feature you need, not just to make using it a breeze, but it has everything necessary to make wonderful recordings.In addition to Dolby B and C noise reduction, this deck has Dolby S noise reduction which produces amazingly clean recordings. The TC-KA1ESA is a three-head system: erase, play, and record, which means that you can monitor your recordings directly from the tape as you are recording. The recorder has a built-in oscillator to let you adjust bias and record calibration like the pros do