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Head-to-head · Room Correction Software

Genelec Loudspeaker Manager (GLM) vs DecayCore

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Genelec Loudspeaker Manager (GLM) #2 in Room Correction Software 9.1/10 Free plan Free plan✓ 3 of 4 features Visit Genelec GLM
DecayCore #7 in Room Correction Software 7.8/10 Free plan Free plan✓ 4 of 4 features Visit DecayCore

Genelec Loudspeaker Manager (GLM) leads on 0 checks, DecayCore on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreGenelec Loudspeaker Manager (GLM) · 9.1/10
  • Free planboth
  • Most featuresDecayCore · 4 of 4

Genelec Loudspeaker Manager (GLM) scores higher on our rubric for room correction software: 9.1 against 7.8 out of 10; our editors rank them #2 and #7.

On correction scope, Genelec Loudspeaker Manager (GLM) gives you Immersive where DecayCore offers Multichannel.

Genelec Loudspeaker Manager (GLM) is the better fit for genelec monitor owners needing immersive calibration. DecayCore is the better fit for free multichannel FIR correction experiments.

  • Genelec Loudspeaker Manager (GLM) fits best

    Genelec monitor owners needing immersive calibration

  • DecayCore fits best

    Free multichannel FIR correction experiments

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Side by side

Feature Genelec Loudspeaker Manager (GLM) 9.1/10 Visit ↗ DecayCore 7.8/10 Visit ↗
At a glance
Editor score 9.1 7.8
Ranking #2 in Room Correction Software #7 in Room Correction Software
Best for Genelec monitor owners needing immersive calibration Free multichannel FIR correction experiments
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms macOS, Windows Windows, Linux
Support Docs Email, Docs
Built for Small business, Mid-market, Enterprise Solo, Small business
Features Genelec Loudspeaker Manager (GLM) 3/4 · DecayCore 4/4
Room measurement tools ✓ ✓
Automatic room EQ ✓ ✓
Convolution correction Not checked yet ✓ (best)
Hardware calibration ✓ ✓
Specs
Maximum channels Not checked yet Not checked yet
Supported operating systems Cross_platform Cross_platform
Correction scope Immersive Multichannel
Our review
Pros
  • AutoCal adjusts room response, level and delay automatically.
  • AutoPhase optimizes subwoofer crossover phase for calibrated systems.
  • Supports stereo, multichannel and 3D layouts with recallable settings.
  • Guided calibrated-microphone measurement includes RT60 and harmonic data
  • Supports linear, minimum, mixed and asymmetric-phase FIR filters
  • Exports WAV and configurations for CamillaDSP, Roon, Equalizer APO and MiniDSP
Cons
  • Calibration and control depend on compatible Genelec SAM hardware and GLM controller.
  • Designed around Genelec monitors, limiting value for mixed-hardware studios.
  • Desktop-only operation on macOS or Windows; support is documentation-based.
  • Free use is limited to non-commercial work
  • Desktop support is limited to Windows and Linux
  • No AI features are included
Our verdict

Genelec Loudspeaker Manager (GLM) is desktop software for configuring, calibrating and controlling Genelec Smart Active Monitors and subwoofers. It is aimed at studios, post-production rooms and immersive monitoring setups built around…

Read the review →

DecayCore is a locally run room-correction application for listeners and small audio projects that need multichannel FIR processing. It guides acoustic measurement through a calibrated microphone input, captures RT60 decay and…

Read the review →
  1. Genelec Loudspeaker Manager (GLM)Room Correction Software 9.1Free plan
  2. DecayCoreRoom Correction Software 7.8Free plan

Strengths and trade-offs

  • Genelec Loudspeaker Manager (GLM) — where it wins

    • AutoCal adjusts room response, level and delay automatically.
    • AutoPhase optimizes subwoofer crossover phase for calibrated systems.
    • Supports stereo, multichannel and 3D layouts with recallable settings.

    Where it doesn't

    • Calibration and control depend on compatible Genelec SAM hardware and GLM controller.
    • Designed around Genelec monitors, limiting value for mixed-hardware studios.
    • Desktop-only operation on macOS or Windows; support is documentation-based.

  • DecayCore — where it wins

    • Guided calibrated-microphone measurement includes RT60 and harmonic data
    • Supports linear, minimum, mixed and asymmetric-phase FIR filters
    • Exports WAV and configurations for CamillaDSP, Roon, Equalizer APO and MiniDSP

    Where it doesn't

    • Free use is limited to non-commercial work
    • Desktop support is limited to Windows and Linux
    • No AI features are included
  • Genelec Loudspeaker Manager (GLM)9.1/10 · Free plan

    Free desktop calibration software for Genelec SAM systems, with stereo through immersive layout control.

    Visit Genelec GLMFull verdict →
  • DecayCore7.8/10 · Free plan

    Free multichannel FIR correction with measurement, optimization and broad DSP exports.

    Visit DecayCoreFull verdict →

More comparisons

All room correction software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update