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Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
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In Reply to: so... are the treble panels on ESL-57's hyperdirectional? posted by mhardy6647 on February 17, 2007 at 16:46:42:
I don't have 57's right now, but my recollection is that what you describe is normal.Here's my fifty dollar Quad ESL-57 tweak, in case you're bored one day: Place an inexpensive 1" soft dome tweeter on the floor facing upwards about a foot behind each Quad. Wire a capacitor and resistor in series with the tweeter (maybe 2 microfarads and 8 ohms as a starting point). Connect this all in parallel with the Quads.
What this does is put more high frequencies out into the reverberant field. The tweeter is far enough away that it's not part of the first-arrival sound. Off-axis listening isn't as lifeless, and on-axis is a bit richer sounding (assuming the tweeter isn't too loud or too quiet).
Martin Logan did the same thing in the Clarity and some other small speaker, using an upward-firing rear tweeter - but I did it first many years ago.
Duke
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Follow Ups
- Re: so... are the treble panels on ESL-57's hyperdirectional? - Duke 17:46:35 02/17/07 (1)
- I've been thinking about trying my R/S 40-1375 planar tweeters :-) - mhardy6647 15:05:08 02/20/07 (0)
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