FIR Creator EX

Create finite impulse response (FIR) filters & mixed FIR + IIR filtering solutions for loudspeakers.
Brand-specific IIR modes & advanced Direct-to-Processor function available for some brands.
Build a complete loudspeaker preset (DSP signal chain) by generating Summary Output files in combination with FIR &/or IIR filter files.


Maximise the audio quality of an individual loudspeaker, device or entire system.


Match different makes & models of loudspeakers in install systems.


Create tunings & presets with specific phase & magnitude characteristics.


Perform system or room correction.

  • Intuitive, fast workflow from impulse response import through to filter export
  • Continuous filter calculation & error display as parameters are updated
  • Two workflows
    • FIR filter design from a loudspeaker measurement
    • Direct FIR design, without a measurement
  • FIR only or mixed IIR & FIR design
  • FIR Filter sample rates: 12, 24, 44.1, 48 & 96 kHz
  • IIR filters (unlimited)
    • Parametric, and low & high shelf
    • Low-pass and high-pass Bessel, Butterworth, Chebyshev I & II, Elliptic, Linkwitz/Riley & Neville Thiele notched crossover.
    • IIR coefficient export: regular transfer function and MiniDSP formats.
  • Generic IIR filter mode includes all above filter types
  • Branded IIR filter modes for Biamp Tesira, Blaze Audio, BSS, Lake, Linea Research, Marani, Powersoft, Pascal Audio, QSC Q-Sys, RAM Audio, RMS-Acoustics & Symetrix. (IIR conversion between brands is not available. For this feature, see FIR Designer.)
  • FIR filter design:
    • Magnitude adjustment using an unlimited number of common filter prototypes (each with minimum, linear and maximum phase options) as well as:
      • Keele/Horbach crossovers
      • Linear-phase brick-wall crossovers
    • Phase adjustment using an unlimited number of minimum and maximum phase all-pass filters, including a unique 4th order all-pass parametric phase filter
    • Automatic magnitude correction with smoothing (1 band)
    • Automatic phase correction with smoothing (1 band)
  • Import loudspeaker measurements manually or via Smaart Control)
  • Smaart® Control for live measurement streaming & capture directly into FIR Creator EX
  • Import measurement resampling (Measure at one sample rate and create filters for any sample rate.)
  • Target response options:
    • User-defined parametric magnitude target with 2 slope segments,
    • Impulse response target from file (with options to use magnitude only or magnitude and phase), or
    • Both user-defined and file response combined
  • Comprehensive range of impulse response file formats (TXT – magnitude/phase/coherence, TXT – samples, WAV, STO – SysTune Overlay, TRF – Smaart® Trace, ETM – Easera measurement, and more)
  • FIR filter export formats include text (inc. CSV), Binary, WAV, Powersoft, Linea Research & EV/Dynacord. (see FIR-capable processors for more details)
  • Processor gain, polarity & delay settings
  • Generate complete loudspeaker presets via the processor channel summary setting export option
  • Direct-to-processor functionality:
    • To LAKE PLM & D series amplifiers. Requires the FIR Designer LAKE plugin and the LAKE FIR 3-way module.
    • To Powersoft X, Ottocanali, Quattrocanali and DueCanali series amplifiers. Works via an XML file which can be loaded into the amplifier’s “Speaker EQ” or “Output EQ”.
    • To Lab Gruppen IPX DSP amplifiers
    • Side-load pre-existing FIR filters (with sample-rate-conversion, if necessary) from other programs for transfer to LAKE &/or Powersoft (subject to their FIR tap limits).
  • Customizable plot colors (saved in the project file)
  • Moveable license: deactivate then reactivate on another computer.