The Tascam DA-88 and DTRS compatibles all record 8 tracks of digital audio on a Hi-8 tape and multiple machines operate together as one unit, synchronized with sample accuracy for up to 128 tracks. A 120 minute Hi-8 tape yields about one hour and fifty minutes of audio, but shorter tapes are recommended. The Tascam DA-78HR and DA-98HR are 24 bit recorders, while the rest are all 16 bit recorders. (Third-party accessories are available to turn the "16 bits to tape" machines into 24 bit recorders by means of bit-splitting which reduces the number of tracks.) Features: 1 hr. 48 min. recording time on a single 120 tape; 20Hz - 20kHz frequency response at 92dB+ dynamic range; 16 bit A/D and D/A converters; Expandable up to 128 tracks (16 machines); SMPTE, MIDI and Sony 9-Pin sync capability with optional SY-88 card.