[sdiy] Sonic qualities of parts..

[JH.]

Hey, forget what I just said.
I had the Solina in mind when I typed my reply.
Too many projects, and too long away from home. :)

(7 days remaining ...)

JH.

----- Original Message ----- 
From: "JH." <jhaible at debitel.net>
To: "Robert Lorentz" <robert.lorentz at gmail.com>; "synth DIY" 
<synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, September 16, 2008 10:36 PM
Subject: Re: [sdiy] Sonic qualities of parts..


> Don't worry too much about caps.
> They may make a difference, in some puristic High End audio reproduction 
> gear. I have no doubt about it.  (though I don't consider myself an expert 
> in this, either.)
>
> But when you mangle a signal with BBD delays, I doubt you will notice much 
> difference from the capacitor type, unless you have an extemely bad and 
> microphonic ceramic cap.
>
> JH.
>
>
>
> ----- Original Message ----- 
> From: "Robert Lorentz" <robert.lorentz at gmail.com>
> To: "synth DIY" <synth-diy at dropmix.xs4all.nl>
> Sent: Tuesday, September 16, 2008 9:50 PM
> Subject: [sdiy] Sonic qualities of parts..
>
>
>> I'm sourcing parts out for the JH String Filter and was intending to
>> use the WIMA polyester film caps recommended by his BOM.  Sourcing
>> from Mouser, I found these caps in some of the values required, but
>> many weren't available.  Browsing around I noticed a similar boxed
>> capacitor from AVX (metallized polyester film) that is available in
>> every value required.
>>
>> Instead of mixing caps, I thought it best to stick with the AVX that
>> are available through all values that I need.  They're also about 1/3
>> the cost.
>>
>> This brought me to consider how it's often stated that certain caps
>> are higher "audio quality" than others.  I understand that different
>> materials and construction techniques result in different
>> characteristics of a capacitor, but how do these differences translate
>> in to real, tangible, and measurable, differences in audio circuitry?
>> And to what degree does it actually matter?  Sure it feels good to
>> throw the most expensive capacitor with a 400volt rating in to every
>> Cxx spot on a board, but is this achieving any meaningful results?
>>
>>
>> I started my audio adventure in the domain of guitar
>> amplifications/effects and these "quality" statements regarding caps
>> (et al) were thrown about *extremely* loosely.  Whether the statements
>> are accurate or not, the people stating them to me certainly didn't
>> know any tangible details... I peg the group here as a much more
>> scientific bunch that won't see this email as heresy
>>
>> Robert
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>
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