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Lydtrold / THE 31
Audio pluginMac + WindowsMac v0.1.16

EQ

THE 31

A clean constant-Q 31-band equaliser with ±12 dB gain, a live spectrum display, output gain, presets and clear mono/stereo metering.

Our AAX DSP plug-ins are not validated at 192 kHz.

Choose your edition

Choose THE 31

Choose the edition you need. Your licence covers Mac and Windows; after checkout, use Lydtrold Installer to sign in, install and receive updates.

€19 DSP + NativeNative free / €9 DSP + NativeIntro prices through 31 December 2026. Regular prices from 2027.
Buy DSP + Native · €9Mac + Windows · Pro Tools HDXGet Native freeMac + Windows · email deliveryBuy subscriptionMac + Windows · from 4.95/month
Use the shared Lydtrold InstallerMac: AU · VST3 · AAX Native · Windows: VST3 · AAX NativeFree licence includedUse the email address and licence key from your receipt
  1. 1. Claim or purchase place the free THE 31 order with your email.
  2. 2. Download the shared Lydtrold Installer using the link in your receipt.
  3. 3. Install after signing in with your order email and licence key.
The free licence can be activated on up to five computers.
Alternative ways to own the collectionIndividual licence, All Access or Complete Bundle

Choose a monthly subscription or buy the complete collection permanently, then sync the purchase in Lydtrold Installer.

Buy subscriptionBuy Complete Bundle to own

Native and DSP + Native

THE 31

A clean constant-Q 31-band equaliser with ±12 dB gain, a live spectrum display, output gain, presets and clear mono/stereo metering.

Shape the full audible spectrum in familiar third-octave steps. THE 31 is equally at home correcting problem frequencies, creating broad tonal balance and making fast live-mixing decisions.

The Native edition is free. DSP + Native adds AAX DSP for compatible Pro Tools HDX systems.

Use Lydtrold Installer for macOS or Windows. Native includes AU on Mac, VST3 and AAX Native. DSP + Native adds AAX DSP for compatible Pro Tools HDX systems.

Try the full plug-in for 14 days, or activate an individual licence, Complete Bundle or All Access subscription.

Native price
Free
DSP + Native price
€9 intro (2026) · €19 from 2027
Collection access
Included in Complete Bundle and All Access for your edition
Activations
Up to five computers

Free Native

THE 31.
A clear answer.

A clean constant-Q 31-band equaliser with ±12 dB gain, a live spectrum display, output gain, presets and clear mono/stereo metering.

Free full version

Order free.
Install once.

THE 31 is free with no time limit or demo restriction. Place the free order, then activate it in the shared installer with the email address and licence key from your receipt.

Price
Free
Mac formats
AAX Native · VST3 · AU
Windows formats
AAX Native · VST3
Licence
Free order · up to 5 activations