AVS Forum Addicted Member
Join Date: Jun 2001
Location: NW Houston, TX
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I'm guessing, but perhaps the tune up/down, which was a common implementation back when that product was new.
I don't think that "delay" is going to do what you think it does. IIRC, that would adjust the delay of the surround channel compared to the L/C/R. It wasn't particularly useful back then, either.
Hope that helps,
Rock Creek Theater -- CIH, Panamorph, Martin Logan, SVS PB2000, Carada Masquerade, Grafik Eye, Bar table, Green Glue, JVC RS50
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