Giving credit where it's due, PWK was an excellent businessman. He obviously put a high priority on high sensitivity, and this seems to be the chief design goal of his heritage creations with high profitability bringing up a close 2nd place. He used fairly mediocre drivers in cheaply finished enclosures and has been met with fairly continuous success for over half a century.

For me personally, i find the "cupped hands" sound of the midrange and "cheese grater" harshness of the T-35/k-77 nearly offensive across all the heritage models. However, some folks have found amplifiers whose weaknesses and shortcomings seem to offset the caveats of the heritage systems. Matching complimentary caveats is a path i choose not to follow in audio. YMMV.