07-18-2008, 09:36 PM
The wood baffles you refer to are merely flat pieces of wood behind the grille cloth, and in front of the speakers. They only have holes in them large enough for the speakers and clarifiers. 27-8572-A is the cardboard upon which the grille cloth is mounted.
The ONLY extra thing in a 37-690, or 38-690 for that matter, is the solid wooden cone mounted directly in front of the woofer.
The merits of passive radiators in an unsealed speaker chamber have been hotly debated for some time now. All I can tell you is, when I owned High Fidelity Philcos, when I sat in front of them and placed one ear next to one of them, I could hear them; yes, even though the cabinet was NOT sealed.
The ONLY extra thing in a 37-690, or 38-690 for that matter, is the solid wooden cone mounted directly in front of the woofer.
The merits of passive radiators in an unsealed speaker chamber have been hotly debated for some time now. All I can tell you is, when I owned High Fidelity Philcos, when I sat in front of them and placed one ear next to one of them, I could hear them; yes, even though the cabinet was NOT sealed.
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Ron Ramirez
Ferdinand IN
