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.

Need help choosing? See the Product Feature Comparison Table

Latest News

Generic IIR mode in FIR Designer

Generic IIR Mode Added to FIR Designer

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A ‘Generic’ IIR filter mode has been newly added to FIR Designer (v3.5) & FIR Designer M (v2.6). It increases speed & accuracy when working with processors that don’t have their own branded IIR filter mode within the IIR Reference … Read More
Smaart v9 in FIR Designer

FIR Designer SMAART® Update

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Smaart V9 compatibility has been added to FIR Designer (v3.5) & FIR Designer M (v2.6) and works with SMAART Suite, Real-Time and Light Editions. Load previously saved SMAART measurements & use them as the starting point for FIR filter & … Read More

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