AES E-Library

AES E-Library

An 8th-Order State-Variable Filter for Linkwitz-Riley Active Crossover Designs

Document Thumbnail

Presented is a new 8th-order (48 dB/octave) state-variable filter topology with complete design equations for the general solution, as well as a specific solution yielding an 8th-order Linkwitz-Riley alignment (LR-8). Worst case analysis outlines component tolerances required for manufacturing repeatability. Performance comparison with 4th-order Linkwitz-Riley (LR-4) designs show the many advantages of narrowing the crossover region and steepening the crossover slopes. Included are transient analysis results for LR-4 and LR-8 designs. Phase response analysis demonstrates that LR-4 designs eliminate the 180-degree phase shift exhibited by LR-4 designs at the crossover frequency.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society