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Old 9th August 2011, 01:26 PM   #1
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Question The best quality parts and suppliers?

I want to replace the components on my amplifier with the highest quality parts I can afford. Is there like a outstanding manufacturer for say resistors?
I have been goggling for parts but it seems there’s no mention of weather they are excellent or just average. Is there a supplier that I can email and say I want A B C and the best you have that specialise in audiophile quality ?
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Old 9th August 2011, 02:14 PM   #2
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So far I have read that

Vishay VAR-Series "naked" Z201 Z-FOIL RESISTORs are possible the best you can get your hands on.. they are as far as I can see about $15 each from a US supplier, so far I hav'nt found a UK source.

Z201 Z-FOIL RESISTORs

Then at this site Site Link he describes why they are and others like below :

TX2575: the "naked" Z foil resistor go for : S102K (1%) 47K (.6W) $14.90 @ Texas Components
Some info

Z201: the original Z foil resistors see above.


TX2352: the original "naked Vishay"
S102 C/K: the encapsulated C/K foil resistors

of cousre this is just one person opinion I'm sure people have their own.
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Old 10th August 2011, 04:31 AM   #3
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From a technical standpoint, Vishay Z-foil resistors are probably the best resistor technology available. Think of them as miniaturized wirewound resistors with outstanding temperature and voltage coefficients. Generally, metal film resistors with very low temperature coefficients (25 ppm or less are the best of film technology) are a good price compromise. Carbon film and carbon composition aren't even close, but depending on applications, especially in high voltage apps, they have their place.

See also Caddock thin and thick film resistors, especially for higher voltages (300 volts and above)

If there's a better resistor technology than bulk metal foil, I'd like to hear about it. Too bad they're so expensive, hence my fallback to metal film such as mil-spec RN55E (25 ppm) and Vishay/Dale PTF series, for example.
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Old 10th August 2011, 04:56 AM   #4
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I have used the MP915's as output ballast resistors. Although they perform swell, they are pricey. I will be going with a cheaper solution in the future.
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Old 18th February 2012, 10:04 PM   #5
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Default Z-foil

Metal film resistors do not sound good.
Z-foil sound better than other metal films, but against the good carbon films without magnetic caps, they sound muddy and totally uninvolving.
And they are very pricey.
Z-Foil for cheap? No, thanks!
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Old 18th February 2012, 10:47 PM   #6
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I still prefer the Vishay S102. Due to the encapsulation, a lack of microphonics I think makes it the winner. I have been using them for 20 years. Regards
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Old 18th February 2012, 10:52 PM   #7
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I find RS RS Components | Electronic and Electrical Components or Farnell world-leading distributor of electronic and maintenance, repair and operations products. | Farnell United Kingdom are very good.

Use metal film resistors where you can.
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Old 19th February 2012, 11:25 PM   #8
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Z-foil is of course top notch... but for normal people with reasonable budgets the Vishay Dale CMF/RN 55/60/65 series are probably the resistor of choise, well available at Digi-Key, Mouser, etc and Schuro at eBay. With added avantage of various power ratings and virtual all values, which cannot be said for the Z-foil on sale....

For the power resistor in the output stage, the Fukushima Futaba MPC metal plate resistors are considered very good (refer to the group buy forum, and I'm getting some 5W various values stock soon ).

And there are of course the Takman resistors... yummie....either metal fim or carbon, have a look here.

Last edited by AmpliFire; 19th February 2012 at 11:27 PM.
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Old 19th February 2012, 11:54 PM   #9
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Quote:
Originally Posted by AmpliFire View Post
Z-foil is of course top notch...
No!
Absolutely not!
Z-Foil resistors do not sound good! They are lifeless, dull bass, without dynamics and layering into time and space.
Use carbon film instead! Takmans cannot be surpassed! Listen to them!
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Old 20th February 2012, 02:13 AM   #10
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Quote:
Originally Posted by petavgeris View Post
No!
Absolutely not!
Z-Foil resistors do not sound good! They are lifeless, dull bass, without dynamics and layering into time and space.
Use carbon film instead! Takmans cannot be surpassed! Listen to them!
any proof to back up such a biased statement ?
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