Adrestia AudioAdrestia Audio

Changelog

Versions.

Every release of Saturation Box.

v0.3.2October 10, 2026Latest
  • The faceplate's outer edge loses its hairline; the rolled leather is the edge, as on the wells.
v0.3.1October 9, 2026
  • Andrestia Audio is now Adrestia Audio, the name we wanted from the start and couldn't get until now. New name on the panel, in the plugin metadata, and at adrestia-audio.com. Bundle identifiers are unchanged, so existing sessions keep loading.
  • Triode Drive goes further. The Triode was the only model whose knob stopped short of overdrive, so at the same Drive setting it sat thin next to the other three. The grid now swings three times hotter: at Drive 25 on a drum loop the tails sit at +5 dB, between the Transformer and the Pentode, and at full Drive it compresses about 13 dB instead of 6. Harmonics at operating level are 0.6 / 2.3 / 5.5 % second-harmonic at Drive 0 / 12 / 24. Level compensation recalibrated; noise floors and aliasing unchanged.
v0.3.0October 8, 2026
  • A major update. Each of the four models is now modeled as the actual circuit rather than a curve that approximates it, so every one of them sounds closer to the gear it is named after.
  • Triode is a 12AX7 stage with its coupling and cathode capacitors in the model. Hit it hard and the bias shifts and swells back the way a real stage does. Nearly clean at low Drive, second-harmonic warmth as you push it. Drive is scaled to a real single stage, and it uses about a quarter of the CPU it did.
  • Pentode is an EL84 push-pull output stage, which is where that odd-harmonic British crunch comes from. The power supply sags under a loud hit, about 2 dB over the first 200 ms, and recovers.
  • Tape is an oxide curve fitted to a 456-class tape at 15 ips. The highs saturate first, so transients round off naturally, and there is no envelope follower in it anymore, so nothing pumps. Drive is now record level, so the whole knob is useful. Vintage switches to an older, softer, noisier tape stock on a slightly worn head.
  • Transformer is iron that saturates where iron really does, down low, while the mids stay clean. At high Drive it is the line amplifier driving the transformer that runs out of rail.
  • Fixed: a notch in the Mix blend around the Low Cut and High Cut frequencies. The blend is now flat within 0.2 dB.
  • Fixed: tube aliasing cut by about 40 dB, and some low-frequency and sub-sonic artifacts on the tube models cleaned up. Silence is now -100 dBFS on every model.
  • New: a true Bypass button, click-free, tied to your host's bypass. The panel dims while it is engaged.
  • New: a hardware panel. Leather, brushed metal, round model keys that light up, and jewel lamps for Bypass, Vintage, and Auto Gain that flicker a little more the harder you drive it.
  • Noise is now per model, at the real levels of the gear, placed where each circuit makes it, and it fades out when nothing is playing. No hum, no crackle.
  • Each model has its own voicing now instead of a shared tone shape: Triode keeps its natural high-frequency roll-off, Tape its record emphasis and head bump.
  • Oversampling follows your sample rate (4× at 44.1/48 kHz, 2× at 88.2/96, none at 176.4/192), so CPU at 96 and 192 kHz dropped a lot. Latency is 61, 49, or 0 samples, reported to the host.
  • Manual for v0.3.0 (PDF)
v0.2.0September 24, 2026
  • Auto Gain is now a switch on the panel, on by default. On, the level holds steady as you turn Drive so you hear the character change. Off, the unit behaves like the hardware: unity at Drive 0, louder as you push it.
  • Level compensation recalibrated on real program material instead of a test tone. Drive is now flat to within 0.1 dB at operating level on all four models; the old tables let it rise about 4 dB, and 7 dB on Transformer.
  • Bypass no longer shifts the track in time or clicks.
  • The noise floor now stays put: the same on every model, and it no longer climbs with Drive. Vintage hisses like a machine that's been loved, not neglected.
  • Fast automation of Low Cut and High Cut is now smooth.
  • Preset name is saved with the session. Tooltips on every control. Shift-drag for fine control, double-click to reset a knob.
  • Manual for v0.2.0 (PDF)
v0.1.2September 23, 2026
  • Resizable window. Drag the corner, or click the size badge in the footer for 100-200% presets. The size is remembered per instance and as a global default for new ones.
  • New Andrestia Audio logo in the header. The plugin name moves to the footer.
v0.1.1September 21, 2026
  • Switching between models no longer clicks or pops. Changes crossfade over 20 ms, and a reset bug that fired a full-scale spike when switching to Transformer is fixed.
  • Fixes a bug where the plugin would not load on macOS versions before 26. Now runs on macOS 11 and later.
  • Footer version label now reflects the installed build.
v0.1.0July 19, 2026
  • First public release.
  • Four saturation models: Triode (12AX7), Pentode (EL84), Tape, and Transformer.
  • Loudness-compensated Drive, phase-coherent Mix, saturation band, VU meter.
  • Nine factory presets, exposed to the host program list.
  • AU and VST3 for macOS, universal binary.
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Manual (PDF)