DSP FIR

April 2025

DSP for Stellar Bookshelf

DSP for the Stellar is implemented in two steps. Cross-over and coarse linearisation is via the Hypex Fusion amplifier's software, and via FIR filters that can be implemented upstream.

TODO: Add details of Stellar DSP.

DSP for Keystone and Bedrock Speakers

DSP for the Keystone and Bedrock speakers is implemented per driver in the form of:

Linear XO
Delay
Gain
Frequency Linearisation
Phase Linearisation
Linkwitz-Riley Transform (for Woofers and Midwoofers)
Baffle Step Compensation (for Midwoofer)
Cardioid Magnitude Loss Compensation
Cardioid Delay All Pass Filters

TODO: Add detail for Keystone and Bedrock DSP for each of the above.