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In Reply to: RE: slopes posted by Tre' on August 12, 2015 at 14:19:52
Please do enjoy your system. It's just a question that's been in the back of my mind.
Phil Marchand uses a ferrite core (ferrite pot core/pot ferrite core?) coil in his PPXLOs that many of the knowledgeable guys at diyAudio swoon over, and would die to know where he sources them from. I don't think he sells them individually. His PPXLOs are second order, and they would be easier for me. Are they passive enough for you?
Why don't you want to use an active high pass? Just because it's active doesn't mean it has to add gain.
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Big speakers and little amps blew my mind!
Follow Ups:
I can't find anything on line about the PPXLO.
The XM46 looks good by the impedance is too low (1k).
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Oh, and it says typical impedance is 1K. If you find it interesting, then you should send an inquiry to Mr. M. who says he can build anything you want. He is an extremely nice man.
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Big speakers and little amps blew my mind!
I'm sure he's a great guy but the higher the impedance the larger the inductors need to be and I think that will lead to higher and higher winding capacitance causing other problems.
LCR RIAA filters are available in 600 ohm and 10k but everyone seems to say the 600ohm sounds better.
But 10k is a lot easier to drive.
Every step of the way is a compromise of one form or another.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
> "Every step of the way is a compromise of one form or another."
You got that right. That's why there are 10,000 paths in this hobby.
Mr. M is a great guy. An old school Frenchman, and willing to talk to somebody on the phone for five minutes. You could ask him yourself tomorrow if you so choose.
Is this all an issue because you use a TVC or AVC? I think an active crossover would take care of that problem. Yet another compromise.
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Big speakers and little amps blew my mind!
"Is this all an issue because you use a TVC or AVC?"No, not at all. The AVC is a step down autoformer (unless you have it wide open) so the output impedance is lower than that of the source.
I'm just OCD and like to keep my load lines as horizontal as I can. Decreases the HD, ya know!
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 08/12/15
Just exploring the possibilities.Have a good one.
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Big speakers and little amps blew my mind!
Edits: 08/12/15
.
Have Fun and Enjoy the Music
"Still Working the Problem"
My mistake. It's been a long time since I looked at his site.
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Big speakers and little amps blew my mind!
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