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In Reply to: Re: How delicate are planar transducers posted by middleground on March 3, 2007 at 03:39:13:
Thank you for that information. I find myself attracted to a speaker project that is sensitive enough to use in a small room with 45 SET that has two output tubes per channel for crossover filtering with resistors and capacitors like Marchand. It should have a NEO 3 or 8 tweeter, it should be open baffle. GR Research has the OB5 and OB7 but Danny does not have allowance for active crossover of frequency from midrange to tweeter (NEO 3) even though it is first order crossover. I have always had good results with his speakers in the past. But they used Raven ribbons that require bothersome maintenance, having to rework the fine aluminum ribbons, a tedious enterprise. But they are very smooth sounding and they incline me to at least a planar ribbon tweeter but conventional drivers make sense for lower frequencies. Danny insists that capacitors are so good that active filtering is not necessary, but I am unsure that active crossover would not be better. But equalization and notch filtering before amplification uses op amps that I would rather keep out of the signal path. So I do not mind passive equalization that open baffle speakers might need and I do not mind passive notch filters that before amplification would need so much inductance that it could not be done without neon sign transformer secondary that are bigger than the amplifier.
Again, thank you for bringing me closer to an ideal speaker choice for a summer project.
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Follow Ups
- Re: How delicate are planar transducers - Barney Vincelette 13:33:17 03/04/07 (0)
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