Ortho Spectrum Speaker Filters?

Has anyone tried the Ortho Spectrum speaker filters being advertised by Delve Audio?

ljgj06-26-2002 11:45am

albertporter Details Discussions Posts This discussion Message User 4,949 posts 06-26-2002 at 09:41pm Copy Comment URL Report Comment Edit Delete If they are as effective as the Walker HDL, they are worth trying.