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Author Topic: C-Bombs and magnetic field  (Read 1517 times)

Ivanickson

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C-Bombs and magnetic field
« on: June 01, 2021, 04:41:58 AM »
Hey guys! I have some problem with C-Bombs magnetic field on my Ibanez RGR652 (Olly Steele setup), it is really strong. I set pickups at ~5.2mm from the strings (maximum range on this guitar) and I still hear some string vibrations after 16 fret. Is this a normal situation? The sound with this distance kinda good, but I can't raise the neck pickup, can't raise pole screws and dont' have space for some experiments, this is a bit frustrating. Btw, Olly Steele pickups stand higher in his videos, as far as I can see. Any ideas? Didn't find problems like this on forum  :smiley:

Ivanickson

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Re: C-Bombs and magnetic field
« Reply #1 on: June 01, 2021, 09:52:13 PM »
I tried to sort it out again and even on max range I have wrong vibrations and sustain loss. Looks like my guitar is unplayable now. I made a photo and 2 audio exemples, probably someone will see the pproblem. Pickups height ~5mm. Pot - it's volume, blue thing - it's single coil switch.

« Last Edit: June 01, 2021, 10:00:58 PM by Ivanickson »

Dave Sloven

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Re: C-Bombs and magnetic field
« Reply #2 on: June 02, 2021, 01:26:27 AM »
I would ask two questions:

1. Do you still have the original neck pickup in place?

2. Did you discuss your guitar with BKP before ordering the pickup?

I suspect - given that it is an Ibanez - that there is some kind of polarity issue going on between the new bridge pickup and the original neck pickup.  There is something weird with Ibanez guitars in this respect.  I would get in contact with Bare Knuckle via email and tell them what's going on, where you bought the pickup, and send them those photos.

I don't know enough about this issue to be much help but I doubt that a regular C8 magnet is powerful enough to cause this problems.  It is more likely to be a polarity issue, as when you turn magnets toward each other and they repulse each other
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Ivanickson

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Re: C-Bombs and magnetic field
« Reply #3 on: June 02, 2021, 02:05:05 AM »
I would ask two questions:

1. Do you still have the original neck pickup in place?

2. Did you discuss your guitar with BKP before ordering the pickup?

I suspect - given that it is an Ibanez - that there is some kind of polarity issue going on between the new bridge pickup and the original neck pickup.  There is something weird with Ibanez guitars in this respect.  I would get in contact with Bare Knuckle via email and tell them what's going on, where you bought the pickup, and send them those photos.

I don't know enough about this issue to be much help but I doubt that a regular C8 magnet is powerful enough to cause this problems.  It is more likely to be a polarity issue, as when you turn magnets toward each other and they repulse each other

Hey, Dave, thank you for answer!

1. No, this is set C-bomb+A-Bomb.

2. Yes, I did. I asked support guy, what Olly Steele uses in his guitar cuz I have the same guitar, I was sure it will be work for me aswell. Then I told him about my guitar and he gave some specs for it including reversed neck magnet, "for Ibanez concepcion" - he said. Also I asked for hex screws if it matters.

I hope this problem is solvable, I was looking the "right sound" with a few pairs of pickups, I want to stop and just to play music already  :cheesy:
Btw, I asked guys from tech support, they will probably answer tomorrow.

Dave Sloven

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Re: C-Bombs and magnetic field
« Reply #4 on: June 02, 2021, 02:19:46 AM »
I thought the reversed magnet was for when you have a single coil in the middle.  If I am not wrong your model is HH though, not HSH.

BKP may be able to give advice on reversing the reversed magnet if that is the issue

Chris from BKP said to me something last weekend about checking my order when he goes in next on Tuesday, so I am assuming that they had Monday off for some reason.
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Dave Sloven

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Re: C-Bombs and magnetic field
« Reply #5 on: June 02, 2021, 02:24:21 AM »
As an initial test I would probably remove the neck pickup and wiring harness from the guitar, wire the bridge pickup directly to the jack, and then restring and test it again.  If the problem disappears it is either the wiring or the polarity of the magnet in the neck pickup.
BLACK HAWKS
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Ivanickson

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Re: C-Bombs and magnetic field
« Reply #6 on: June 02, 2021, 02:51:10 AM »
Yep, my model is HH, but with positions 2 and 4 in parallel and custom coil split.
Making tests is a problem for me cuz I am bad with electronic and I need to go in workshop. But I will go if nothing helps.

Ivanickson

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Re: C-Bombs and magnetic field
« Reply #7 on: June 02, 2021, 04:07:19 AM »
Btw, looks like my previous custom pickups were with standard neck magnets (not sure) and worked well (except too much high end on my ash-guitar)
Hmmm... Probably that means anything.
« Last Edit: June 02, 2021, 04:18:43 AM by Ivanickson »

Chris Rowberry

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Re: C-Bombs and magnetic field
« Reply #8 on: June 03, 2021, 08:58:11 AM »
Thank you for sending in your audio clips.

We have had a talk here regarding your issue and listened to the clips. To us, it seems as though something is killing the sustain on your strings. The pickup magnets are not strong enough to cause the vibration to drop off like that at all. It could be something to do with any part(s) attached to the strings. I would recommend taking to a tech/luthier for a setup or at least a check over.

Also, it wouldn't hurt putting in another set of pickups and just seeing if you get the same issue. That would also confirm if the issue is in the pickups or the guitar itself.

Ivanickson

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Re: C-Bombs and magnetic field
« Reply #9 on: June 03, 2021, 05:02:28 PM »
I'll keep you informed. If I'll find a solution, that could help someone in future.

Ivanickson

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Re: C-Bombs and magnetic field
« Reply #10 on: July 15, 2021, 11:11:42 AM »
I thought about the problem and realized that the actual problem is not with the pickups. So I didn't check it with other pickups and went straight to mechanical test. I fixed the frets height (the neck has a small issue under the first frets), then I tightened the truss rod and set the heavier strings to compensate the tension with new action (about 1,6 mm for 6 string). Now the pickups height is ~4 mm for bridge and ~3,5 mm for neck, and warbling almost disappeared, now the instrument is playable. Not sure it was some weather effect or instrument quality or smth else but the problem almost gone. Wanna thank Bare Knuckle team for responsiveness, they helped a lot!

Dave Sloven

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Re: C-Bombs and magnetic field
« Reply #11 on: July 15, 2021, 12:49:50 PM »
I'm glad to hear it!  When you have a problem it is best to give the BKP team a call, they are great people
BLACK HAWKS
IMPULSES
COBRA-T
WAR PIGS
STOCKHOLM
COLD SWEATS
MIRACLE MAN
TRUE GRIT

https://slovendoom.bandcamp.com/releases