Friday, 21 September 2012
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Hi Sheldon, I've been having some issues tuning my AB1 such that it is in tune with open strings, at 12th pos AND at 1st (or 3rd) pos. If I tune with open strings the intonation at the 12th position is about perfect, so I'd say the bass is set up correctly. However, at the first frets the notes are a bit sharp. And that is when I press the fret with my nail exactly at the fret. If I play normally it gets worse worse. I now tune at the 1st fret making most notes ok, but it leaves the open strings flat... Not big time (and not as bad as tuning with open strings), but still annoying. Any thoughts?
9 years ago
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#24661
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Roel, It [b:3lkp5xfg][i:3lkp5xfg]sounds[/i:3lkp5xfg][/b:3lkp5xfg] like a nut slot height being slightly too high, [b:3lkp5xfg][i:3lkp5xfg]but [/i:3lkp5xfg][/b:3lkp5xfg]seeing that it came from Dingwall I would say that's not the problem. I strobe my guitars and basses capoed at the 7th fret. That helps even out flat and sharp notes all down the neck. The other cause could be that your neck position PU is a little too close to the strings on the B side causing the magnet to pull your strings sharp on the lowest notes where the string has less tension. I would try this method 1st actually. All it would take is about 1/8 - 1/4 of a turn on the height adjustment bolt on the B side. I was having a problem with low G 3rd fret pulling sharp on the bloom/decay. Then I read in a TB Callowhill thread that Big Singles can pull your strings sharp because the magnets are so powerful. If too close to the string it pulls on it going sharp. I screwed it down about 1/4 turn and the problem was solved. [quote="roelofreinink":3lkp5xfg]Hi Sheldon, I've been having some issues tuning my AB1 such that it is in tune with open strings, at 12th pos AND at 1st (or 3rd) pos. If I tune with open strings the intonation at the 12th position is about perfect, so I'd say the bass is set up correctly. However, at the first frets the notes are a bit sharp. And that is when I press the fret with my nail exactly at the fret. If I play normally it gets worse worse. I now tune at the 1st fret making most notes ok, but it leaves the open strings flat... Not big time (and not as bad as tuning with open strings), but still annoying. Any thoughts?[/quote:3lkp5xfg]
9 years ago
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#24667
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That's a thing I can check. Probably mostly the neck pu. Lets see what happens...
9 years ago
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#24670
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What strings are you using? How old are they? If they are stock the nut should be at the right height and the lower fret intonation should be fine. If the gauges are different, the strings might be sitting high in the nut. I need this information before going further. Pickup height won't affect the lower fret intonation. If the neck pickup is too high, it will make the tone of the B and E strings sound warbly (a little like a steel drum) in the upper frets.
9 years ago
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#24678
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I think these are the original strings. The bass was purchased november last year, and have been cleaned with a cotton cloth every time after playing to stretch their life span. I realise now their probably getting a bit old, even though I take good care of them... But I have a set VOODOO Dingwall strings for when they need to be replaced. Distance from the neck PU to the B is about 4.5 mm and to the E about 5.0 mm, which I would expect to be fine.
9 years ago
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#24702
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Cleaning is good. Still finger oils and dirt can build up in the windings where you can't get at them. They make the string heavier in the areas where you play the most. This can really throw off your intonation. Let me know what you find when you replace the strings.
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