Planar Speaker Asylum

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In Reply to: RE: Musings on true-ribbon roll-off points for 3-way Maggies. :-)) posted by andyr on October 22, 2009 at 03:44:44

You are already tri-amping so that the tweeter is independent of the other drivers, so how about going directly from the pre-amp to the treble amp only (without any filter) and using a pure tone generator and RS SPL meter to measure the acoustic response of the tweeter at 1 meter? Marchand has a free signal generator on his site.
BTW I am using a -3db of around 4k for my IIIa tweeter as I shifted the mid-treble xo point to ~2500k rather than the stock 3k.

I plan to procrastinate my demise for as long as possible. In the meantime, I practice by putting off all the little stuff.

Edits: 10/22/09

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"how about going directly from the pre-amp to the treble amp only (without any filter)"??? ... - andyr 12:30:58 10/22/09 (0)

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