Yes (especially for the price and a better idea than a Metalized one) ! But the capacitance value is ridiculously low imho (don't play with values lower than 0.1 uF in speaker filter with by pass... or at the risk to make your tonal balance too thin rather than having more clearness ! "'Oh my bass changed" .....😉)
the capacitive impedance of a 0.01uF @ 20kHz is ~ 800ohms. If you adjust that for the ESR you still end up at ~ 800ohms.
Now place that ~800ohms impedance in parallel with the 2r0 resistor. What current would expect to pass through the 2r0 resistor? what current would you expect to pass through the esr+0.01uF? Is anyone here really expecting us to hear that 20kHz change? Now adjust down to 5kHz. The impedance of the 10nF capacitor is ~3200ohms. What current now passes the esr+10nF?
BTW, if anyone wants to know the 20kHz current through the 10nF cap relative to the 2r0 resistor, it is at a level of ~-0.02dB @ 20kHz and -0.0054dB @ 5kHz.
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Hi Andrew! Now I am a little confused about this. I am no electrical engineer! All I have read and heard was that some say use a small value .01uF or up to .1uF caps to bypass the main value caps to gain better sound. Then others say no need for doing that. Then you have others saying to use the high priced boutique caps for the best sound, while others disagree and say it is a waste of money! Personally, I can say that years ago using the cheapest Solen caps and then building the same crossovers using Erse caps with .1uF Sonic caps as bypass caps on all of the larger valued Erse caps did make a audible improvement! So that being said, I would imagine that it was in the construction of the caps that made the improvement!
As you have stated about hearing a difference at 20khz, I would say that I don't think anyone could hear that with human ears. But it may measure better perhaps? I'm not that interested in what the measurements look like on paper, rather what it sounds like to my ears! I guess as technology continues to advance with newer materials, construction, etc., will make for better improvements in the audio world! What is your opinion about using these .01/.1uF bypass caps? Do you use them in speaker crossover networks? If so, what brand names and values do you prefer?
As you have stated about hearing a difference at 20khz, I would say that I don't think anyone could hear that with human ears. But it may measure better perhaps? I'm not that interested in what the measurements look like on paper, rather what it sounds like to my ears! I guess as technology continues to advance with newer materials, construction, etc., will make for better improvements in the audio world! What is your opinion about using these .01/.1uF bypass caps? Do you use them in speaker crossover networks? If so, what brand names and values do you prefer?
Actually, my measurements had shown the difference is mostly below 1KHz.
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I imagine that these would be OK?
http://www.mouser.com/ProductDetail/WIMA/MKP1T031006B00KSSD/?qs=JZ%2biKJYxjZWaxTnjl02p2Q==
http://www.mouser.com/ProductDetail/WIMA/MKP1T031006B00KSSD/?qs=JZ%2biKJYxjZWaxTnjl02p2Q==
Trying different bypass caps in my crossovers, on Jantzen Superior Z-silver 5.6uF caps, I found that the 10nF MKP 1837s sounded very slightly worse than no bypass, 15nF polystyrenes sounded distinctly worse, and 15nF Russian FT-1 Teflons sounded slightly better. YMMV, and that's the point, it seems every application is suck it and see!
I think you need to see if Wima catalog is available. It has better info on the different types.
They're not available... BTW I would buy these, they're great bypass caps:
8x Roederstein Kondensator KP1832 9,5nF/1200V 2% axial | eBay
Search KP1832 on eBay, anything around 10nF will do.
But remember bypassing is a sort of band-aid and it would be a real improvement only on not so good caps.
IMHO a single good quality cap will usually sound better than a mediocre one bypassed.
However everyone's definition of good and mediocre is different. Jantzen Silver Zs come under the heading of mediocre at £25 each, then!
???
Who talked about z-silver?
BTW I think that CDE 940C while costing less sounds way better, Mundorf Supreme, also cheaper then z-silver, sounds better than both.
Who talked about z-silver?
BTW I think that CDE 940C while costing less sounds way better, Mundorf Supreme, also cheaper then z-silver, sounds better than both.
+1 🙂
try a yellow MKT vishay cap instead for instance if price is a problem ! (or try the well know russian good QS/P ratio, but not as good than AUdyn Cap coppers (even the russian Teflon according to my tests on aluminium domes) ! Choice of course has to see with the drivers, filters and sound and whole system : no universal answers when it comes to tweak with passive parts and especially small values in a speaker....imho
I did. Because that is what I have and what I bypassed. You spoke of mediocre caps. All clear now? 🙂
I've chosen to exhaust my hobby fund for a while with a purchase of some Claritycap MR for the input to my amp. These were on sale, so that helped justify the cost.
I'm expecting great things over the odd surplus film caps that are in there now...
Funny how most of the time bypassing results in a less than great sound, however there are exceptions. I think it was Murata that has a good .pdf showing how the ringing effects occur with combinations of caps.
I'm expecting great things over the odd surplus film caps that are in there now...
Funny how most of the time bypassing results in a less than great sound, however there are exceptions. I think it was Murata that has a good .pdf showing how the ringing effects occur with combinations of caps.
I think there is a risk of introducing ringing when fast changing current pulses occur.
I suspect many of the heard changes are due to removing, or adding in, this ringing.
And this why I said you need to try it yourself. How many have the ability to measure this, other than with ears?
Ears cannot measure. Ears have the fantastic ability to deceive while making good comparisons.
Ears can compare, but they are incapable of telling you which is a closer reproduction of the original signal, unless you have an unadulterated version of the original available for the comparison.
Ears can compare, but they are incapable of telling you which is a closer reproduction of the original signal, unless you have an unadulterated version of the original available for the comparison.
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