fwiw, I picked up a set of Onkyo 25s way back when. Selling stereos for an occupation in Boston then. They have similarities to some other stuff we recognize, like a front vented woofer like Altec, and a padded midrange ( material between the cone and the wire screen to protect/retain)like AR, and a rubber surround which hasen't rotted yet in almost 40 years. They are heavy, too, betting at over 50# and rock solid. Never saw much of anything about them on the web.