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Eclipse Audio Releases FIR Creator EX Version 2 with Unlimited Filters

FIR Creator EX is a powerful software application used by audio professionals to design custom filters and DSP solutions for loudspeaker and system optimization. It offers significantly more functionality than standard FIR Creator, through the inclusion of several advanced features shared with the flagship FIR Designer software, like ‘Smaart® Control’ for live measurement import, brand-specific IIR emulation modes & Direct-To-Processor (DTP) export for some brands.

“The recent version 2 major update has greatly enhanced the level of customization available within FIR Creator EX” said Michael John, lead developer at Eclipse Audio. “Until now, IIR filters, FIR magnitude and FIR phase filter prototypes were limited to 8 per project. But with version 2, we’ve eliminated all manual IIR & FIR filter limits, enabling licensees to use an unlimited number of filters in their custom DSP design.”

Version 2 has also introduced more branded IIR modes, to ensure precise matching of the IIR filter behavior with the destination processor by adjusting for brand-specific differences in IIR filter interpretation. The range of supported brands now includes Biamp Tesira, Blaze Audio, BSS, Lake, Linea Research, Marani, Pascal Audio, Powersoft, QSC Q-SYS, RAM Audio, RMS Acoustics, and Symetrix. “We’re currently working with several other brands to include their IIR emulations in our DSP software tools”, said John, “so the list of supported brands will only keep growing.”

The DTP export options in FIR Creator EX have been expanded in version 2 to include Lab Gruppen’s IPX DSP amplifiers, joining Lake and Powersoft. Data is sent to the IPX Controller using the ‘Loudspeaker Processor Interchange Format‘ (LPIF), a brand-agnostic JSON-based format for transferring loudspeaker EQ settings from filter design tools to DSP amps & processors.

FIR Creator EX is available in both macOS and Windows versions, and a demo can be downloaded free at


(Smaart is a registered trademark of Rational Acoustics LLC, Connecticut, USA.)