No discussion needed. You do only subjective "testing" hence no objective proof. Just saying you prefer a certain type of cap in general and lumping similar caps into the same "sonic signature" means nothing. Sighted testing isn't worth anything.It's just your own subjective preference. Without a controlled ABX or SBT or DBT that means little.
agreed ...
disagree ...
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those that worship at occams razor might appreciate this -
'With a controlled ABX or SBT or DBT that means little.'
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Why? You have to see which cap is being used before you can tell which is in circuit? Don't trust your ears huh?
Yes, Tony Gee does have his followers....
http://www.diyaudio.com/forums/multi-way/78568-tony-gees-capacitor-page-updated.html
http://www.diyaudio.com/forums/multi-way/78568-tony-gees-capacitor-page-updated.html
These look identical to stacked film polycarbonate I bought about 30years ago.
At that time Polypropylene were very expensive and I could not afford PP.
Polycarbonate were the affordable next best available.
330nF 100V were not available in polystyrene, nor NP0 ceramic.
Photos of expensive pretty caps , no objective testing what so ever, "sound" of different caps . Oh brother
might try both, see what you prefer ...
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yeah, why?
do i?
i don't?
"sound" of different caps . Oh brother
do caps sound different?
you don't trust your own ears?"
wait a moment,
can you hear?
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I'm 100 % sure my car runs better whenever I have it washed.
Maybe I would think otherwise if submitted to blind testing.
If people think they will sleep better using expensive caps,
I say
.
You are the one saying ABX SBT and DBT aren't relevant ways to test caps not me. All involve the listener to only rely upon their hearing not being able to see which cap is which. So you admit to not trusting your ears. If you continue to make claims that caps do sound different then it is up to you to provide proof that they do, otherwise it is subjective drivel.
David, for crossover caps, there is at least some plausibility to sound differences- the impedances are low, currents are high, and by definition, they handle signal outside of the passband. That's not to say that there's isn't some fantasy, and indeed ears-only testing is still needed to demonstrate differences, but unlike the claims about coupling caps, there's no major violations of basic physics in the notion.
Those are polyester layer. Like this, used in opamp circuits:
Polyester Layer 0.47uF Capacitor | Maplin
Just for fun, here below is what Harbeth use in their crossovers. MKP's (aka Polyester) and surprise, surprise, ferrite core in tweeter crossovers. So what do you know?
No- MKT is polyester. MKP is polypropylene. MKC is polycarbonate.
Wolf
Last I knew you could still buy them, but the MKC are getting fewer and farther between and the price is going up as quantities get smaller. To my knowledge, the last company that manufactured the polycarbonate film no longer does so. ERO/Roederstein had quite a few values of MKC caps that you can still find NOS. I have no complaints about the ERO MKC caps I've used.
Later,
Wolf
Later,
Wolf
Yes, you are right. I made a typo there.
Nevertheless, it is interesting that Alan Shaw of Harbeth finds cheaper MKT polyester and ferrite tweeter coils acceptable in his highly rated designs. Audio heresy, or penny pinching or just good engineering?
We are really discussing the effect of the plastic dielectric type, the thickness and type of the metallised film and the occasionally more exotic low inductance construction. Polyethylene dielectric and aluminium sleeve were the materials of choice in 45MHz analog transatlantic telephone cables when I were a young telecom engineer. Nevertheless, you needed a repeater amp every 3 miles to counter ca. 60dB loss.
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If you have been around in the audio (electronic) world long enough or eager to learn you know by experience that MKP is always sounding better than MKT....as the rest of the world knows.
To me it is more that you simply like to discuss...and that is downright silly in this case smelley.
The Harbeth story is also applicable on loads of high end material....to me it stays a world of compromises...my own idea is solder (better) stuff in it and listen if it sound better it is better if not stay with the original...it might be there for a purpose. (To cover up other compromises..hahaha)
That being said...99 percent can always be tweaked for the better......
To me it is more that you simply like to discuss...and that is downright silly in this case smelley.
The Harbeth story is also applicable on loads of high end material....to me it stays a world of compromises...my own idea is solder (better) stuff in it and listen if it sound better it is better if not stay with the original...it might be there for a purpose. (To cover up other compromises..hahaha)
That being said...99 percent can always be tweaked for the better......
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As the world knows or just the subjective listeners that don't bother finding out if that's really true or not by using proven objective testing? It might just be all in your head after all.
I'm going to disagree with that sentiment. Most MKP has lower ESR than MKT, yes. However, ESR aside, I have found that some F/F MKT-oil caps have allowed my midrange to sound more open and textures are more easily discerned. These aren't cheap caps either, but I still prefer them over some metallized polys I have also used.
(You have to understand that the music input is as good as it gets, and the drivers actually reproduce the sound. The filter in the middle if optimal allows the signal to get to the drivers hopefully as good as the input. The xover parts actually produce no sound themselves, but are a passive item in between that will either degrade or not change (ideal) the incoming signal. Typically this is described as the 'caps sounding better' when they are only passing what they are capable of. Some caps 'affect' the signal less than others.)
Later,
Wolf
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