Curious_George Posted July 28, 2022 Share Posted July 28, 2022 On 7/17/2022 at 3:09 PM, Dave MacKay said: Having the riser seems to contravene rule #5 of PWK’s "8 Cardinal Points of Reproduction" (aka PWK’s 8 Rules😞 5. Freedom from cavities. The space under a speaker box formed by mounting it on legs can destroy the bottom octave of response and deteriorate the next two octaves. I have 4" casters underneath my ported 1974 LaScala's and they sound great. Before the casters, the bass was somewhat feeble even after the port mod. Decoupling from the floor in my case made a huge difference. 1 Quote Link to comment Share on other sites More sharing options...
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