1984...TASCAM introduced the M-512 and M-520 audio production mixing consoles. These were TASCAM's first cost-effective balanced consoles. They came in two input configurations...12 x 8 and 20 x 8. These were priced starting at $3,995 suggested retail.- The TASCAM 40 series included the 42-NB 1/4" 2-track 2 channel half track mastering and broadcast on-air recorder/reproducer, the 44-OB 1/4" 4-track recorder/reproducer with 10 1/2" reels and 15 IPS, and the 48-OB 1/2" 8 track 8 channel recorder/reproducer with SMPTE interlock capability.- The TASCAM 300 series mixers consisted of the M-308 a (8 x 4 x 8), the M-312 a (12 x 4 x 8), and the M-320 a (20 x 4 x 8) mixer.-