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P90 against P100

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Josip Seidl

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Oct 10, 2003, 1:36:19 PM10/10/03
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What is the difference in sound between them.Does P100(stack pickup) has the
same bite as P 90?Josip


[paul

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Oct 10, 2003, 2:12:27 PM10/10/03
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I don't know about the Gibson pickups, but SD makes a stacked P90 pickup.
The difference is the stacked P90 has 2 coils for noise cancelling, similar
to humbuckers. On the SD pups, the stacked coil is a "dummy" coil, so it
only cancells the noise, but does not affect the tone. So, in theory, the
SD stacked P90's sound like a regular P90, but with a lot less noise.

I think the Gibson P100 pups are actually a Humbucker disguised as a P90,
but I could be wrong.

-Paul H.

"Josip Seidl" <josip...@telia.com> wrote in message
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Josip Seidl

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Oct 10, 2003, 5:00:09 PM10/10/03
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Hi,I asked this question,becouse I saw photo Mr Will puted on his Galery on
webside(#1746 and 1747) from Wrexam jazz festival(Johnny Smith
concert),showing guitarist playing Howard Roberts Custom with a P90 pickup.I
wonder how he menaged to get that P90 under the strings.I have Gibson P90 in
the box(new),but it`s much thicker than the floating original pickup.Does
anybody has some experience about that.On those pictures it looks very
good(I`m sure that this guitar sounds good too).Thanks for any help.Josip
"[paul" <paul.c.h...@intel.com> skrev i meddelandet
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Jack A. Zucker

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Oct 10, 2003, 5:22:16 PM10/10/03
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"[paul" <paul.c.h...@intel.com> wrote in message
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> I don't know about the Gibson pickups, but SD makes a stacked P90 pickup.
> The difference is the stacked P90 has 2 coils for noise cancelling,
similar
> to humbuckers. On the SD pups, the stacked coil is a "dummy" coil, so it
> only cancells the noise, but does not affect the tone. So, in theory, the
> SD stacked P90's sound like a regular P90, but with a lot less noise.

That information is incorrect. The website specifies that the Duncan stacked
P90 is a true humbucker.

Rick Del Savio

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Oct 10, 2003, 5:32:30 PM10/10/03
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Hi Josip. I have a re-issue Gibson Les Paul Jr. with P 100s. I was quite
surprised how full, and noiseless, they sound. Not that I bought it for
playing Jazz but when I was trying it out I played some Jazz. Although,
the problem with p/u's is one doesn't know exactly how they'll sound
until one has installed them. Cheers, RDS :)

Josip Seidl wrote:
>
> What is the difference in sound between them.Does P100(stack pickup) has the
> same bite as P 90?Josip

--
Jazz Guitarist/Educator
Check out lessons and original music @
http://www.rickdelsavio.com

Dennis O'Neill

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Oct 10, 2003, 6:29:48 PM10/10/03
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"[paul" <paul.c.h...@intel.com> wrote in message news:<bm6sqb$qh$1...@news01.intel.com>...
> I don't know about the Gibson pickups, but SD makes a stacked P90 pickup.
> The difference is the stacked P90 has 2 coils for noise cancelling, similar
> to humbuckers. On the SD pups, the stacked coil is a "dummy" coil, so it
> only cancells the noise, but does not affect the tone. So, in theory, the
> SD stacked P90's sound like a regular P90, but with a lot less noise.
>
> I think the Gibson P100 pups are actually a Humbucker disguised as a P90,
> but I could be wrong.
>
> -Paul H.

All "humbucker" means is that there are two coils connected in series.
Both coils receive nearly the same signal but are out-of-phase, so
that when the signals are added together whatever is common to the two
coils is cancelled out.

In the case of a standard humbucker, the musical part of the signal is
a little out-of-phase in one coil with respect to the other, while hum
and noise are identical in each. Thus the hum and noise get cancelled
out. The mathematics of out-of-phase signals probably accounts for
the lower resonant frequency of standard humbuckers compared to
typical Fender-style single coils.

In a stacked humbucker like the P100 or the SD equivalent, the
amplitude of the musical signal in one coil has higher amplitude than
in the other, while the amplitude of the hum and noise is identical in
each coil. Thus the hum and noise get cancelled out.

Another part of the tone difference between standard humbuckers and
P90s/P100s is due to the length of the string that is sensed. It's
longer on the P90/P100.

I don't know whether P90s and P100s sound exactly the same. Since
they're not the same physically, I'd expect they don't sound exactly
the same. I don't know how different they sound, though. I've never
done a blind test - I don't even know if a blind test could be done.

[paul

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Oct 10, 2003, 7:13:36 PM10/10/03
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Tomatoes, Tomatoes.

SD has changed there offerings alittle bit since I last looked. Anyways,
I'm pretty sure the underneath coil is mainly for hum cancelling. Of course
since there are 2 coils, it is a humbucker, but I dought it sounds like a
traditional HB since one coil is much closer to the strings than the other.
I also dought that it sounds like a vintage P90 single coil.

Sorry for any confusion.

"Jack A. Zucker" <j...@jackzucker.com> wrote in message
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Greg D

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Oct 10, 2003, 8:02:33 PM10/10/03
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"Josip Seidl" <josip...@telia.com> wrote in
news:n6Chb.32331$dP1.1...@newsc.telia.net:

> What is the difference in sound between them.Does P100(stack pickup)
> has the same bite as P 90?Josip
>
>
>

P100 - bright, thin'ish
P90 - bright, raw-edged, gutsy, thick

Greg

Jack A. Zucker

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Oct 10, 2003, 8:14:57 PM10/10/03
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"[paul" <paul.c.h...@intel.com> wrote in message
news:bm7ef0$9a7$1...@news01.intel.com...

> Tomatoes, Tomatoes.
>
> SD has changed there offerings alittle bit since I last looked. Anyways,
> I'm pretty sure the underneath coil is mainly for hum cancelling. Of
course
> since there are 2 coils, it is a humbucker, but I dought it sounds like a
> traditional HB since one coil is much closer to the strings than the
other.
> I also dought that it sounds like a vintage P90 single coil.

It makes a bigger difference in tone than you would think. I've wired
stacked humbuckers up so that I could short out the bottom coil and there's
a pretty big difference in tone between the series coils and the top coil
only.


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