No they shouldn't, Philippe; if they took the time to study the technology involved. When even the company engineers state that there's no performance benefit, they should take the hint. If they're concerned that visiting "audiophile" friends might insist on opening their speakers up to see if "cheap" stamped frames are used, they should consider going with the added expense. Most of us have better uses for the money.

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Enjoy the music, not the equipment.