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Availablev0.4.2CLAP audio effect

SPC Lumen Relay

Split the spectrum. Rack anything on every band.

€39.99
SPC Lumen Relay console — routing inspector with the Ruby band selected, spectrum view with draggable crossover flags at 120 Hz, 500 Hz and 2.5 kHz, and the zero-latency / linear-phase and Band Mixer + FX Rack controls
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“A multiband rack for your whole plugin folder.”

SPC Lumen Relay splits your signal into two to eight spectral bands — draggable crossovers, zero-latency recursive LR4 or linear-phase FIR, your choice — and then does something no ordinary splitter does: it gives every band its own mixer track with a ten-slot serial FX rack that hosts other CLAP plugins inside the band. Compress just the mids with your favourite compressor, saturate only the Ruby band, chorus the Azure one — no external mixer routing required, with full latency compensation aligning every nested chain automatically. Each hosted plugin opens its real editor in a movable, minimizable child window with state saved and restored inside your project. The effects browser scans your installed CLAP effects with exact identification and paging, and the racks speak fluent SPC — the whole Spectral Colors line nests happily. Prefer the classic workflow? Eight stable Direct Outs route any band to host mixer tracks instead, and the default Internal Mix keeps bus 1 as the full sound so nothing needs routing to make sound. Named bands with per-band trim, mute, solo and phase, a routing inspector, twelve saved semantic UI themes from Dark to Game Boy, and CPU/GPU display settings complete the console.

Available now — a one-time purchase, yours to keep.

SPC Lumen Relay pitch-reference artwork

Highlights

  • 2–8-band spectral splitter with draggable crossovers
  • Zero-latency recursive LR4 or linear-phase FIR splitting
  • Eight internal band mixer tracks — ten serial nested-CLAP slots each
  • Host any installed CLAP effect inside a band, real editor in a child window
  • Automatic latency-aligned PDC across every nested chain
  • Effects browser with exact plugin identification and paging
  • Eight optional stable Direct Outs for classic host-mixer routing
  • Internal Mix default — makes sound with zero routing setup
  • Twelve saved semantic UI themes, per-band trim/mute/solo/phase

At a glance

Format
CLAP audio effect (64-bit)
OS
Windows 10 / 11
Host
Any CLAP host — FL Studio 21.2+, Bitwig, Reaper…
Version
0.4.2

Latest updates

Actively developed — recent fixes and improvements:

v0.4.22026-07-24
  • Store release hardening — parameter and state handling verified against the official CLAP validator, so every host restores your session identically.
v0.4.12026-07-22
  • Effects-only discovery with exact plugin identification and paging — a 52-effect installed scan verified clean.
  • Hosted plugin editors became movable, minimizable, closable and reopenable top-level windows.
v0.4.02026-07-22
  • Twelve saved semantic UI themes, from Dark and Cyberpunk to Sand and Game Boy.
v0.3.02026-07-22
  • The nested rack — eight internal band mixer tracks with ten serial CLAP slots each, child editors, state save/restore, latency-aligned PDC and the no-routing Internal Mix default.

Learn the technique

Not sure if this is the tool you need?

These free guides explain the job SPC Lumen Relay does — read them first, then decide. No sign-up, no video, just the technique.

Browse all guides →

Made to be played

Every knob morphs the sound.

SPC Lumen Relay is built for real-time sound design. Turn a control and the whole signal reacts at once — spectral colour, granular texture and modulation respond live, right in your DAW. Nothing is baked in: every parameter is fully automatable and MIDI-mappable, so you can draw evolving movement, morph a vector-scope signal, and lock in a one-of-a-kind sound no preset could give you.

Get SPC Lumen Relay

Inside the plugin

Click any image to enlarge.

SPC Lumen Relay interface 1
SPC Lumen Relay interface 2
SPC Lumen Relay interface 3

Community signal

Join the Spectral Colors Discord.

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