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Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
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Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
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In Reply to: Re: marantz imperial 6 speakers posted by geo770 on March 11, 2007 at 09:37:01:
He's got the Advent data all screwed up. Advents came out in 1970. Further, the total diameter of the tweeter is only about 1 7/8". It's paper, not cloth, the center dome does most of the radiating above 3-4 kHz and it's 7/8" diameter, and the crossover is at 1 kHz not 1800 Hz. The half roll surround around the center dome is 1/2" wide, not 1" and it doesn't radiate much at higher frequencies. (I wonder if he has it confused with the EPI)As to the peaks and dips he measured, that's because he measured on the tweeter axis or at the cabinet center at their 1 meter microphone position. That gives very poor results on an Advent because of the driver phasing and positions in the front to back direction. In the far field, you can't find the crossover region.
Jerry
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Follow Ups
- Re: marantz imperial 6 speakers - Bold Eagle 12:58:07 03/11/07 (1)
- Re: marantz imperial 6 speakers - geo770 20:47:45 03/11/07 (0)
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