We provide software tools for equalizing audio systems and creating custom finite impulse response (FIR) filters & complete mixed FIR + IIR filter loudspeaker presets for single and multi-way loudspeakers.
Products in the Eclipse Audio range share an intuitive workflow that uses imported loudspeaker measurements as the starting point for filter & preset design.

Our Products

Windows & macOS versions available. Download a free demo version of any product & use for as long as you’d like.

Free Tools

Windows & macOS versions available. No time limits or restrictions on use.

Latest News

Free SpeakerMeasure Automates AES75-2022 Test Procedure

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New SpeakerMeasure from Eclipse Audio (the developer of FIR Designer) is a completely free software tool designed for loudspeaker manufacturers and designers who are measuring loudspeaker maximum linear sound levels using the AES75-2022 standard for acoustics. SpeakerMeasure automates most of … Read More
FIR Creator v1.7

New Features Added to FIR Creator EX

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Several of the new features recently added to FIR Designer & FIR Designer M have just been rolled into FIR Creator EX 1.7.0. Here’s a summary: More brands supported for IIR emulation. New ‘Biamp Tesira‘ & ‘Marani‘ IIR filter modes … Read More

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