Linear phase spline 'match & morph' EQ

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£208.80 inc. VAT
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SEQ-S delivers creative EQ power in a way no other EQ provides. A direct-draw interface and detailed spectrum analysis make it easy to quickly identify and specifically fine-tune your audio. Massage and correct any audio with incredible resolution that you just can’t get with a traditional parametric interface. With 3 independent curves, individually assignable across the surround panorama, SEQ-S gives you complete control over your spatial environment.

An interface that adapts to suit the task in hand allows SEQ-S to be as simple or as sophisticated as the task demands. With access to Mid-Side, 5.1 and 7.1 surround sound operation, node locking, zoom-able views, flexible curve assignment, dynamic EQ morphs, sonic fingerprinting and psycho-acoustic banding options, you can really let your imagination run free.

Unique control from finely detailed precision to sweeping morphs, mid/side operation and powerful match EQ functionality. Try the unparalleled flexibility offered by SEQ-S today.

  • Curve scale and smoothing
  • Zoomable interface
  • No phase warping/smearing
  • Clone source EQ to target mix
  • Invert to sculpt specific space
  • Individual surround channel access
  • Dynamic EQ morphs

Fluid EQ morphing

Far beyond traditional EQ, SEQ-S is capable of fluid filter morphs. Automated EQ morphing introduces a wealth of new opportunities from controlled scene transitions to full-blown creative sound design sculpting.

With three independent EQ transition pairs, including dynamic and static pass filter effects, seamless transitions from different environments, creative morphs and tempo-locked effects are easily achieved, with full dynamic visual feedback.

Match one sound to another

Use SEQ-S to capture the flavour of a piece of source audio and then transfer it to your current work – great for restoration and harmonisation work. Or use the technique on individual tracks to unify different takes, microphone positions, and more.

Create 'perfect space'

EQ Invert gives you a minimally-invasive technique for creating space in a complex mix where traditional EQs are just too cumbersome. By sampling the vocal and applying the inverted the curve to the backing, specific space can be gently created without unnecessarily altering the original tonality of the underlying audio.

For music production

Fine tune and correct your sound with flexible, detailed envelopes difficult to achieve using traditional EQ.

Use EQ matching to gently push your sound toward reference material or dive into creative spheres with filter morphing and tempo-locked effects. If you need something special, reach for SEQ-S.

Independent Left/Right and Mid/Side operation allow you to direct EQ exactly where it's needed. Ideal for both corrective mix work and gentle mastering polish.

For post and broadcast

With support for stereo, 5.1 and 7.1 surround, SEQ-S gives complete control over your spatial environment. Flexible nodes and a direct draw interface make specific corrections possible in a way that would be very time consuming using a traditional parametric interface.

Match 'invert' makes finding space for dialogue in a busy soundtrack quick and easy, avoiding heavy-handed EQ or intrusive ducking.

Try automated EQ morphing for controlled scene transitions and creative sound design possibilities. The morph function uses two EQ memories as the basis for operation, enabling a smooth transition between two states over time.

Typical applications

  • Detailed, transparent adjustment
  • Easily build complex EQ envelopes
  • Independently address L/R, M/S and surround channels
  • EQ matching
  • Time-based fluid EQ morph transitions
  • Creating 'perfect space' for vocal and dialogue
  • Precise low-frequency control


  • Surround compatibility up to 7.1 for post & movie production


  • Mono and stereo audio production

Please click on the link below to view the download and install guide for this product.

Customer Reviews


Press Quotes

"The high-cut and low-pass filters on SEQ-S sound amazing." - George Seara (Shawn Mendes, Rihanna, Drake)

"Nugen Audio products have become indispensible tools." - Cheryl Ottenritter (National Geographic, Smithsonian Channel)

Tech Specs

Product Type:

Effects Plugin

Product Specs:

System Requirements

Windows: (64 bit) Vista or above / 512MB of RAM

Apple: OSX 10.7 or higher / 512MB