Circuit Atlas · HUSH M4 · Rev 2027.4 draft
10 Revision history
Changes recorded in this draft of the manual.
IN DEVELOPMENT · REV 2027.4 (DRAFT) · DESIGN TARGETS, NOT MEASUREMENTS
HUSH M4 is in development. This draft is published on zakkhutoretsky.com; it has no price and no ordering. Figures marked design target are goals for the finished product. Figures marked calculated come from the published formulas. No value on these pages was measured on a built unit. Interviews are cited as the design brief, not as an endorsement.
See this control Open the mixer
10 Revision history
| Revision | Date | Change |
|---|---|---|
| 2027.4 draft | 10 November 2026 | The browser model becomes an installable web app: offline app shell, saved sessions, per-deck BPM, tap tempo, pitch fader, loops, hot cues, nudge and an optional sync, a track library, Web MIDI learn, keyboard shortcuts and a first-run tour. These are tools of the software model; the hardware design is unchanged and still has no tempo, BPM or sync function. Adds Appendix E. Departs from a DVS1 statement (q24); see Appendix C. |
| 2027.3 draft | 10 November 2026 | Replaces the per-channel three-band isolator with a four-band channel EQ (S13, design target): HI shelf, HI MID bell, LO MID bell, LO shelf, exactly flat at 12:00. Adds the matching browser model, centre detent and reset on /mixer, and references R23 and R24. Adds lossless track decks to the browser model (WAV, AIFF, FLAC from the user’s device, never uploaded). Reworks its audio path (native sample rate, 4× oversampling of the nonlinear stages, exact bypass, true-peak limiter at −1 dBTP, dithered 24-bit export) and adds Appendix D with the simulation results. The master isolator (S3b) is unchanged. Departs from a DVS1 statement (q6); see Appendix C. |
| 2027.2 draft | 10 November 2026 | Adds the optional spatial FX send / return (S12, design target) and the matching browser model on /mixer. Texture section S11 and USB interface S10 unchanged. |
| 2027.1 draft | 10 November 2026 | First draft: controls, signal flow, design targets, circuits S1–S9, calibration plan, safety. Values from tools/mixer_values.py. |