Re: Audible Differences Between Metal Film Resistors?

"Pooh Bear" <rabbitsfriendsandrelations@xxxxxxxxxxx> wrote
in message news:44942198.910DFBC8@xxxxxxxxxxx
Arny Krueger wrote:

"martin griffith" <mart_in_medina@xxxxxxxxxxx> wrote in
message news:te18921rmd52a9un9bt5adpuirpe6nd3kg@xxxxxxx
On Sat, 17 Jun 2006 09:32:23 -0400, in rec.audio.pro
"Ethan Winer" <ethanw at ethanwiner dot com> wrote:

Sean,

Is the difference between yaego and say, caddock or
vishay, metal film resistors audible? <

If there are audible differences, then those
differences could easily be measured. So that's what
you should be looking at. Rather than asking for the
opinion of others or trying to determine it yourself
by ear only. The ear is not a very accurate or
reliable measuring device.

--Ethan

I did see a report, some months ago, on a non usenet
audio forum where up to 15dB excess noise had been
measured on surface mount resistors when compared to "
normal" through hole resistors.

Sorry, lost the URL :-(

What I hope you meant to say was that up to 15dB
excess noise had been measured on certain resistors when
compared to certain other resistors.

There is zero evidence that it is practically impossible
to make good surface mount resistors. There is plenty of
evidence that good resistors are often made as surface
mount devices.

I'd like to see evidence of both views.

I think it already exists.

On the plus side we have products like the LynxTwo with dynamic range of
almost 120 dB, an excellent reputation for SQ and SMT-based construction.
Obviously, not a lot went wrong. ;-)


A while back I had a sub-contractor make 2 prototypes for
us using extensive SMT. Almost all the mic preamps
sounded 'different' - more or less noisy etc - one or two
even sounded phasey !

Seems like evidence on the minus side.

Everybody who is surprised that a complex technology with high potential
like SMT can be screwed up should grab a pointed hat and move to an empty
chair in the nearest corner. ;-)

This isn't something that happens with through hole
parts, nor from another sub-contractor's production
either.

Begs the question what measured different and why.

Had me very perplexed. Barely knew where to look.
I deiced that subbie really wasn't up to it. They make
stuff for Yamaha btw !

Not to point fingers in any particular direction, but a lot of suppliers do
get better when they receive more attention from their customers. It's also
reasonable to say that many customers (like me) can't practically provide
more than a certain small amount of attention to their suppliers.

Anybody who can't make good product with the attenttion they can be provided
with in a given situation, should be knocked out of consideration in that
situation.

I have a friend who is in the business of supplying the needed attention to
certain mainland Asian car company suppliers, so I hear both sides of this.


.

Relevant Pages

  • Re: Detecting the peak value
    ... On 1-Aug-2010, Jim Thompson ... I'm measuring capacitance using constant-current charge time, ... buying precision resistors is one way to get a cheap 'standard'. ...
    (sci.electronics.design)
  • Re: Detecting the peak value
    ... On 1-Aug-2010, Jim Thompson ... I'm measuring capacitance using constant-current charge time, ... buying precision resistors is one way to get a cheap 'standard'. ...
    (sci.electronics.design)
  • Re: Current measuring resistor calibration
    ... Potential across resistors are fed to an Opamp that has offset and gain trimming networks. ... depending on what exactly is your purpose. ... Yes there are accurate measuring instruments but problem is they also have to be calibrated. ... If I remember correctly Fluke guarantees its calibration for just 2 years. ...
    (sci.electronics.design)
  • Re: Wheatstone bridge problem
    ... > what the Wheatstone bridge measured initially yesterday, ... > used two 5 ohm resistors in the bridge, when measuring a 0.25 ohm ...
    (sci.electronics.basics)
  • Re: Audible Differences Between Metal Film Resistors?
    ... If there are audible differences, ... is not a very accurate or reliable measuring device. ... measured on surface mount resistors when compared to " ... There is zero evidence that it is practically impossible to make good ...
    (rec.audio.pro)