Fostex G24S

The Fostex G24S is a landmark machine in the history of project studio recording. Released in the early 1990s, it was Fostex's flagship and final high-end analog multitrack deck, aiming to deliver professional 24-track capabilities in a relatively compact and affordable format. The "S" designation stands for Dolby S noise reduction.

• Signal-to-Noise Ratio (CCIR ARM)~88 dB with Dolby S

• Total Harmonic Distortion<1 % (1 kHz)

• Crosstalk>55 dB (1 kHz)

• Erasure>70 dB (1 kHz)

• Record Fluxivity320 nWb/m (reference level)

• Line Input-10 dBV (0.3 V), 30 kΩ, unbalanced

• Line Output-10 dBV (0.3 V), ≥10 kΩ load, unbalanced

• Start-up Time<0.5 s

• Wind Time<140 s (740 m tape)

• Power~195 W (various mains options)

Inputs/Outputs & Controls

• I/O:
  24 balanced/unbalanced line inputs/outputs (nominal -10 dBV) on standard connectors, facilitating patchbay/studio integration. 

• Control Panel:
  Full transport controls (Play, Stop, Rewind, Fast Forward) with LED level meters for all tracks.
  Pitch/Varispeed control for fine-tuning playback speed.
  Locate/Memory functions for tape positioning and cueing. 

• Remote & Synchronization: Optional remote panel and sync board features (e.g., sync to SMPTE/MTC or external clock) exist in some configurations.

Operational Features

• Varispeed Control: ±12 % pitch control allows precise tape speed adjustments for timing and creative effects. 

• Zone Limit & Cue-Wind: Prevents overshooting end of tape; cueing in fast wind with audible monitoring via slow-mode wind. 

• User Interface: Detachable rack ears for mounting, flip-up head cover for access, and multi-function display on some units.

Builds on G16 refinements with improved transport reliability (fewer belt issues than earlier Fostex models); maintenance includes regular demagnetizing, capstan cleaning, and alignment with 1-inch MRL tapes at 355 nWb/m. Known for "tight, dynamic" sound on full tracks but crosstalk limits adjacent bounces; capacitors may need recapping on vintage units.