Echelon AudioEchelon Audio
APEX interfaceAPEX · v1.4.2 · VST3 · AU · AAX

Master Bus · one of the 34

APEX

Your 2-bus, finished.

Ten stages from drive to limiter in one chain — width, weight and loudness without the guesswork.

Own it

$149perpetual · free updates
Start 7-Day Trial · Includes APEX

Trial covers all 34 units, then $17.99/mo. Buy Now goes straight to checkout.

macOS (Universal) + Windows · iLok · New plugins drop Sept 18

Not today? so it’s easy to find again.

Hear it · one instance · level-matched

Program
Trap — level-matched, one instance
Spectrum · APEX master
Processing
Full master-bus chain in one unit · Tone, glue, loudness · A/B is level-honest
Δ Loudness
+5.0 dB
Δ Top end
+4.4 dB
Δ Crest
-3.4 dB

Measured on this demo · method

Δ loudness+5.0 dBΔ crest-3.4 dBΔ top end+4.4 dBTrue peak-1.0 dB

Why it exists

The last 10% of a mix is a chain of bus plugins you re-build from scratch every time — and one bad gain stage in the middle undoes all of it.

APEX is that chain, pre-wired and metered: drive, EQ and balance in, then glue, multiband, HF comp, image and transformer, with the clipper and limiter at the exit. One WEIGHT macro moves the whole thing. Drop it on a mix you already finished and hear it get better anyway.

In the session

  • Turn WEIGHT and hear a finished mix improve.
  • Clip hot 808s cleanly before the limiter ever sees them.
  • Meter LUFS and true-peak right on the bus.
  • Bypass level-matched — judge tone, not volume.

Under the hood

Ten stages — drive, EQ, balance, glue, multiband, HF comp, image, transformer, clipper, limiter
One-knob WEIGHT macro
LUFS + true-peak metering
Per-stage visualizers

System requirements

Versionv1.4.2
FormatsVST3 · AU · AAX
macOSmacOS 11+ · Apple Silicon + Intel (Universal)
WindowsWindows 10/11 · 64-bit · VST3 + AAX
LicensingiLok · machine, cloud or USB
DeliveryEchelon Audio Hub

Buyer's guide

Which ceiling?

Two ways to hit a loudness target without clipping.

CRESTStreaming-loud with styles, punch and metering — the master limiter.$149
EA-LTwo knobs, true-peak brickwall. Pull down, get louder, never clip.$39
APEXThe whole 2-bus in one — glue, tone, width and loudness together.this unit