The Tascam 424 MKII Portastudio is a 4-track "Multitrack Master" cassette tape recorder and a full-function mixer with 8 inputs/stereo outputs combined into a single workstation. The 424 MKII records on readily available standard (Philips) Compact Cassette tape, high bias Type II. The recorder has 4 tracks while the mixer has a stereo output; however, using the DIRECT feature you can record on any or all of the 4 tracks at one time. The 424 MKII's dbx Noise Reduction virtually eliminates unwanted tape noise. A special SYNC feature turns off the dbx on track 4 separately, making it possible to record and play back the MIDI sync tones or SMPTE/EBU time code without being affected by the dbx encode/decode. This ensures that the sync tones/code are recorded and played back without unnecessary processing. With proper operating techniques, it is not necessary to leave a guard band between music and sync tone tracks because of the low crosstalk of the TASCAM heads.

The transport controls of the 424 MKII are microprocessor operated, allowing highly reliable functions that make the unit easier to use:

* A three-point autolocator (MEMO/LOC 1 and 2 and RTZ) lets the tape STOP or PAUSE at, or PLAY from preset points.

* REPEAT allows a section to played over and over between the MEMO 1 and MEMO 2 points.

* REHEARSAL programs the 424 MKII to repeat a punch-in/out sequence as many times as you wish, and AUTO IN/OUT actually executes it on tape exactly as you "previewed" in REHEARSAL

* Two tape speeds offer HIGH for greater fidelity, and NORMAL for compatibility with standard cassette tapes.

* The tape speed can be increased or decreased with the PITCH CONTROL dial in both playback and record, to match pitch or for special effects.