Plugin Alliance Shadow Hills OptoMax 1.0.0 — Mac version

OptoMax 1.0.0 lands as a fresh take on optical compression, built with Brainworx.

Format — VST3, AU, AAX Native. Runs in all major DAWs on macOS 12 and up, on both Intel and Apple Silicon machines.

Hosts — Logic Pro, Ableton Live, Pro Tools, Cubase, Reaper, Studio One. Any AU or VST3 host will spot it straight after install.

Sound — Optical compression that stays natural. Use it for gentle levelling on a vocal bus or harder peak control on a snare. The tone shifts with two high‑frequency modes: Shine opens the top end, Softness rounds off brittle edges. Works across single tracks, groups or a full mix without squashing the life out of things.

Grabbing the threshold and yanking it down kills optical charm

Most new users grab the threshold knob and pull it down hard. That works on a VCA comp, but optical circuits don't behave that way. You'll end up with a dull, over-squeezed signal and wonder where the magic went. Start with small reductions — 2 to 4 dB on the meter — and let the opto cell's natural release do the heavy lifting.

Another common slip is ignoring the transformer models. People dial in a decent setting then leave the transformer on Nickel for every source. Try this instead: set your compression, then flick through all three. Iron thickens a thin vocal. Steel adds grip to a bass bus. Nickel stays open and quick. The difference isn't subtle once you A/B it.

Beginners also treat the Shine and Softness controls like simple EQ boosts. They're not. Shine lifts high frequencies inside the sidechain, so the compressor reacts less to bright transients — cymbals poke through instead of getting clamped. Softness does the opposite, taming harshness before it hits the gain reduction. Crank both at once and you'll fight yourself. Pick one based on what's bothering you in the source.

Lastly, forgetting the mix control. Optical compression can feel grabby when inserted directly. Blend in some dry signal with the parallel knob and you keep the transient snap while the opto circuit fattens the sustain underneath. It's the fastest way to make OptoMax sound expensive.

First days with OptoMax — what to try

Don't open a full mix session straight away. Load a vocal track you already know well and zero OptoMax out. Pull the threshold until you see 3 dB of reduction on the loudest phrases, set the response to Medium, and leave the transformer on Nickel. Listen for a few minutes. Then switch to Slow response and hear how the release breathes differently. That alone teaches you more than reading the manual.

Next, test the sidechain filter on a bass guitar track. Engage the high-pass sidechain at 120 Hz. Now the compressor ignores low-end rumble and only reacts to the upper harmonics and string noise. The bottom stays solid while the midrange tightens up. It's a one-click fix for muddy bass that usually takes three plugins.

On day two, build a simple drum bus chain. Place OptoMax first, set response to Fast, transformer to Steel, and dial the mix knob to 60% wet. Hit Softness if the cymbals feel brittle. You'll get a glued, punchy kit without the dead-room sound that heavy bus compression often brings. Save that as a preset — you'll reach for it often.

Taming a vocal that drifts from verse to chorus level

Say you're mixing a track where the vocal drifts — quiet in the verse, loud in the chorus, and the fader rides aren't enough. You open OptoMax on the vocal channel, set the response to Medium, and pull the threshold down until the loudest chorus words dip by about 5 dB. The verse barely registers a needle flick. That's the opto cell doing its job: transparent levelling that doesn't shout "compressed."

Now the vocal sits right, but the tone feels a little dull against the bright acoustic guitar. You engage Shine at about 2 o'clock. The top end opens up — not brighter in the EQ sense, but more present, because the compressor isn't grabbing every consonant as hard. The sibilance stays natural. No de-esser needed yet.

Next, you want thickness. You switch the transformer from Nickel to Iron. Immediately the low-mids fill out. The vocal gains weight without losing clarity. You back the mix knob to 80% wet to keep a little dry edge for articulation. Done. Three tweaks, under two minutes, and the vocal sits glued in the track without sounding processed.

Late in the session, the whole mix feels a bit separated — good individual sounds but no cohesion. You drop OptoMax on the stereo bus, response on Slow, threshold just kissing 1–2 dB of reduction, transformer on Nickel, mix at 100%. The image tightens. Transients soften just enough to feel like a record. You toggle bypass a few times to check. On, the mix breathes together. Off, it falls apart. That's a plugin earning its keep.

• Initial release — version 1.0.0.

• macOS 12 or later
• Intel or Apple Silicon Mac
• VST3, AU or AAX‑compatible host