Hello my name is Frank I purchased a set of OLA's back in the seventies while serving in the US Navy had the for several years and sold them. recently I was lucky to find a set of beveled walnut with the masonite woofers and tweeters, refurbished the grills an cabinets. I found another set locally with the bull nose cabinets. they sound identical, I stacked them both upright and the sound is amazing, this set up blew away my cerwin vega AT15s the bass is tight and plentyfull any one thinking of doing this don't hesitate you will be pleased.