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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: Al Sekela on HDLs and the like... posted by aupiho on April 15, 2015 at 12:47:34:
Of course it's impossible to argue against your subjective impression that the capacitor makes a "huge" difference, but it seems to me that the impedance of a .01uF capacitor (used in the Walker HDL and also recommended by Al) is very very high until you get into the RF range, which speaks to the intended purpose of the device. Therefore, essentially no signal voltage passes through the capacitor, which is why I say the cap is sonically "invisible". Indeed, on my home-made HDLs, I cannot hear any difference among different capacitors on my speakers.
However, I think I saw elsewhere that you use something like 0.2uF or 0.3uF. I suppose at that high-ish value of capacitance, the low pass frequency comes much closer to the upper limit of audio frequencies, so there might be some audible effect in the treble. I almost want to say that if you can "hear" the capacitor, it's value is by definition too high, if the goal is the same as that of the HDLs and similar devices. But whatever floats your boat is fine with me.
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Follow Ups
- RE: Al Sekela on HDLs and the like... - Lew 16:27:19 04/15/15 (0)
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