Started my project - having heard a pals 18mm birch plywood ones (I should coco) I wanted some.
Firstly how would the HPD's stack up against the Golds I had heard in Mr coco's cabs?
Mr Coco helped with a calc program.
21mm would probably be better so that was that + 24mm for the front panel for good measure.
HPD's
Monitor golds
So all well and good on paper
Now for some specs and cutting sheets.
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Avon plywood did the business. Arrived in the week.
All nicely machined to 0.2mm and the mitres are perfect.
They weigh in at er 55kgs each without drivers :gulp!
Will keep you updated on the progress.
Hope to have them ready in a couple of weeks (glue, screw etc)