mbhudson
Joined: Feb 02, 2012
Posts: 60
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Posted on Aug 12 2014 01:23 AM
So I totally dig my avri jazzmaster, sounds killer on the bridge position through a reverb tank and a harmony 303, and the neck sounds good as well. I can't get into the middle position at all though, I almost never use it. It has a very hollow out of phase sound, kinda like a strat on the in between position. That sound has never really been my thing. So, I guess my question is: does the 62 avri jazzmaster come with out of phase wiring, and if so has anyone tried reversing it?
About a year ago, my guitar tech talked me into installing some genuine vintage 62 jazzmaster pickups in it that he happened to have laying around, and he did mention briefly something about the stock pickups being wired out of phase in the middle position. He said he decided to wire the vintage pickups in the same way, but that he thought it might be unusual or even a factory mistake to have them that way. So what do you guys think? Is my avri an anomaly, do they all come that way, should I have my tech rewire it?
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JakeDobner
Joined: Feb 26, 2006
Posts: 12159
Seattle
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Posted on Aug 12 2014 02:07 AM
No, they shouldn't be out-of-phase. One of your pickups might be backwards causing the lead and the ground being reversed.
Thin would be the word I would use to describe out-of-phase. Naturally a Jazzmaster middle selection, which I am not a fan of, is really throaty/midsy/Bob Dylan Nashville Skyline.
I don't much go for the neck pickup anymore either, Bridge Pickup City for me.
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SURFmole
Joined: Nov 22, 2007
Posts: 901
Portland, OR
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Posted on Aug 12 2014 02:40 AM
I hated the bridge pickup on my Jazzmaster when I had the AVRI pickups...and the middle position is my favorite out of the three.
I like the bridge position now (still prefer the middle unless it's a lead part) but I have a Novak JM90 and the bridge tone is closer to a Tele than a traditional Jazzmaster.
I think the AVRI pickups are wound opposite so when combined in the middle position they are humbucking. They shouldn't be out of phase or thin sounding though. You could try reversing the leads on one of the pickups (neck or bridge)to see if that fattens up your tone.
— www.apollo4.com
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TheCruelSea
Joined: Feb 25, 2012
Posts: 131
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Posted on Aug 12 2014 03:42 AM
I have the same problem. My middle position sounds nothing like it should. If the leads are the problem, how could I tell with a multimeter? If you figure out a solution let me know.
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ludobag
Joined: Jun 05, 2010
Posts: 620
at south of
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Posted on Aug 12 2014 06:44 AM
normally the wire of color are signal and black are ground
i use really much the 2 pups together but i have no avri pups ,i have pickup wizard pups where the bridge is really very better than the avri,
the avri neck pup is cool but the bridge one is very thin sounding to my taste
Last edited: Aug 12, 2014 06:45:01
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eddiekatcher
Joined: Mar 14, 2006
Posts: 2778
Atlanta, GA
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Posted on Aug 12 2014 08:09 AM
In stock form, the AVRI Jazzmaster pickups are reverse wound, reversed magnet polarity to "buck" hum when both pickups are used together. You can try swapping the leads on one of the pickups but you may have to spin one of them around and swap the leads to get that fat in phase "thunk" classic Jazzmaster tone. That sound comes from the paralleling of the two pickups impedances (and resistances which will show up on your multimeter if you hook it up to the guitars output and flip the switch around). Pickup placement in the guitar is a part of the electro mechanical equation as well.
Try plugging in your Jazzmaster, then stand really close to your amp's power transformer and listen for the hum. Now switch back and forth between the pickup selector positions and if properly wired, you should hear a noticeable drop in hum in the middle position.
I ran into this once getting a great deal on MIJ Jazzmaster with aftermarket (Duncan I think) pickups. The dealer thought the pickups were bad. I knew exactly what the issue was and fixed it pretty quick.
Good hunting!
ed
— Traditional........speak softly and play through a big blonde amp. Did I mention that I still like big blonde amps?
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mbhudson
Joined: Feb 02, 2012
Posts: 60
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Posted on Aug 12 2014 12:35 PM
So I'm still a little unclear, on my avri, there is a drop in the hum when I switch to the middle position, so does that mean it has stock avri wiring, which is different than traditional vintage jazzmaster wiring?
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TheCruelSea
Joined: Feb 25, 2012
Posts: 131
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Posted on Aug 13 2014 04:58 PM
ok so I tested the leads of both pickups and didn't get any evidence that either of them were reversed. However, I did find that both pickups have the same resistance. thought that was kind of interesting.
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BJB
Joined: Jul 28, 2008
Posts: 413
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Posted on Aug 13 2014 06:15 PM
A multimeter can't tell if a pickup is wired in phase or not. It measures DC resistance, and DC resistance is the same in both directions.
The original Jazzmasters were hum-cancelling in the middle position, so the AVRI series are, in fact, wired up just like the originals. So if your guitar tech wired up one of the pickups out-of-phase (grounding the white wire instead of the black), then of course your guitar is going to sound weird:
— If it ain't broke, fix it until it is.
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BJB
Joined: Jul 28, 2008
Posts: 413
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Posted on Aug 13 2014 06:18 PM
The wiring diagram shows the black and white wires are connected differently on the neck and bridge pickup. If your guitar tech had some Jazzmaster pickups 'lying around' it is possible that he inadvertently put two neck or two bridge pickups in your guitar. If he wired one of them out-of-phase to cancel hum, the hum would indeed be cancelled but your guitar will sound weird.
— If it ain't broke, fix it until it is.
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Surf_Skater
Joined: Sep 06, 2012
Posts: 1300
Lawrenceville , GA
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Posted on Aug 13 2014 06:20 PM
Haven't tested them, but the packaging for my 65 reissues says the resistance is the same for both. The only difference is one has a red dot on back and the other a blue dot. I put mine in red bridge (hot?) Blue neck (cold?). Don't know if that's right but they sound great.
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SlacktoneDave
Joined: Jul 01, 2006
Posts: 657
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Posted on Aug 13 2014 07:25 PM
mbhudson wrote:
So I'm still a little unclear, on my avri, there is a drop in the hum when I switch to the middle position, so does that mean it has stock avri wiring, which is different than traditional vintage jazzmaster wiring?
Trad wiring, and AVRI will be the same: drop in noise when both pickups are selected.
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SlacktoneDave
Joined: Jul 01, 2006
Posts: 657
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Posted on Aug 13 2014 07:29 PM
mbhudson wrote:
So I totally dig my avri jazzmaster, sounds killer on the bridge position through a reverb tank and a harmony 303, and the neck sounds good as well. I can't get into the middle position at all though, I almost never use it. It has a very hollow out of phase sound, kinda like a strat on the in between position. That sound has never really been my thing. So, I guess my question is: does the 62 avri jazzmaster come with out of phase wiring, and if so has anyone tried reversing it?
About a year ago, my guitar tech talked me into installing some genuine vintage 62 jazzmaster pickups in it that he happened to have laying around, and he did mention briefly something about the stock pickups being wired out of phase in the middle position. He said he decided to wire the vintage pickups in the same way, but that he thought it might be unusual or even a factory mistake to have them that way. So what do you guys think? Is my avri an anomaly, do they all come that way, should I have my tech rewire it?
Reverse the connections of ONE of the pickups. If it sounds more full when Both pickups are selected> problem solved in the quickest manner.
~dave
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SlacktoneDave
Joined: Jul 01, 2006
Posts: 657
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Posted on Aug 13 2014 08:36 PM
I hope I did not kill the thread! Sorry, did not read it all!
cheers,
thanks for a great 2014 Convention!
~dave
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mbhudson
Joined: Feb 02, 2012
Posts: 60
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Posted on Aug 20 2014 01:02 AM
Yeah, I'm very curious now about how exactly it's wired up now. I think it definitely warrants another trip to the shop to get it sorted. I'll let y'all know how it plays out.
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TheCruelSea
Joined: Feb 25, 2012
Posts: 131
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Posted on Aug 20 2014 03:26 PM
I fixed mine! the white and black on my neck pickups were switched so I unswitched them. Now my lil' Squier sounds pretty close to how Bob Bogle sounds in my head! And special shout out to GTHO and his video.
My Jazzmaster sounded spot on like his SG in the middle position. So if your guitar sounds like https://www.youtube.com/watch?v=tkeg5hQWIe4&feature=youtu.be it is probably out of phase.
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