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what's wrong with my bass?

This passed 2 weeks has been an expensive process of trial and error that has ended horribly... I don't know what the problem is, maybe you can help me find out!

A couple weeks ago i changed the strings on my bass for the first time. i've been playing for 16 months, so this was way over-due. Granted i never really needed to change my strings because i bought 3 brand new basses since ive started playing.

Anyways while changing the strings on my most prized possesion (an EBMM bongo 4 H LE2007) i was going for a much higher gauge. for some reason, an amateur mistake i guess, i stupidly put in a 130 E-string, which is normaly a B string for a 5 string bass. It hardly fit into the nut, in fact it really didnt fit at all, but i winded it anyways just to see what would happen. I didnt find the sound too horrific, and it gave my fingers a good workout so i left it there. Now my A D and G strings were also larger than they should have been but not to the point where they wouldnt fit in the nut.

Eventualy i started to notice an extremely unwelcome fuzz-y sound. It was most noticable on my E string but also present on my A string. I put back in my regular gauge (45-100) and the buzz was still there. Next i started to play with my EQ on my bass as well as my amp. What i noticed was kind of scary. When i raised my treble the fuzzyness would smooth out, but upon raising my bass it came back! my mid and volume controls did not seem to have an effect.

Hoping it was my crappy old amp and not my 1800$ bass, i shopped around looking for a new amp, brought my bass, tried some things and determined the porblem is definitly my bass.

Probably also worth mentioning is the fact that when i removed my very large gauge strings from my bass, i noticed 2 very minor scratches right after the nut, where the headstock curves, right where the E and A strings rest respectively.The one near the E string was deeper, the fuzz when i play on the E string is more apparent. Can this be my problem? If so would it be an expensive problem to fix?

My only other guesses are that i screwed too much with the neck tension while changing strings, or maybe i somehow managed to destroy my basses electronics.

Any help, tips, suggestions or insight on what to do next would be a great help. thanks in advance
 
take it to a pro... you may have worn the nut too low, or the nut may not be high enough to facilitate your heavy gauges.

try playing some fretted notes... start at the 5th fret and move down... notice when the buzzing starts..if it is buzzing when you play the fretted notes it may just need a setup... if it is only buzzing on the open strings it is probably a nut issue... which is a relatively inexpensive repair.

also..in the future don't just jam things when they don't fit

"no pain no gain" should never be a bass player's motto...

hope this helps
 
I'm not sure how changing the stings would have any effect on your electronics, but since you tried to force a set of way-to-big strings onto the thing, I guess anything is possible. Sorry, man, without having the bass in my hand, I couldn't tell you where to start. I say take it to a pro.
 
take it to a pro... you may have worn the nut too low, or the nut may not be high enough to facilitate your heavy gauges.
True - but - I have a Bongo HS 4-banger..and yes, there's "no way" a 130 is going to fit in the E string. Bongo's got a "compensated nut," and you may have done something to that. I'd call EBMM customer service (find them in on the MusicMan website) and ask what they can do for you. If you've busted a proprietary part (eg, the compensated nut) your regular hometown luthier won't be able to help you - but EBMM might. Certainly posting this in the MusicMan basses forum will get a more educated answer (Bovinehost as an example).
Meanwhile, congradulations on your new amp!
And yes, we've all done things like this. Nobody got hurt, and nobody's in jail so it ain't that bad.
 
Knew someone would ask. From the EBMM website:

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Q: I see that your basses have been shipping out with a different kind of nut. What is it and what is its purpose?
A: The new nut is called a Compensated Nut. We have a patent on this design.
The purpose of this new nut design is to improve note accuracy all over the fretboard. This is most apparent at the lower frets.

There is no special tuner, setup, or intonation required.

This nut is standard on all Music Man guitars and basses - even SUBs.

The Compensated Nut has been engineered to improve your Music Man instrument's potential to play perfectly in tune up an down the fretboard. Each string has an individual intonation pocket that slightly changes the effective string length, causing notes that traditionally play sharp to be more in tune.

The design has been optimized for standard string gauges and tunings, but will be of benefit when used with alternate tunings, string gauges, and playing styles.
 
First thing to check when an active instrument sounds "funny" is to put a new battery in there. Me, I only use Duracells as the only time a battery ever died on stage for me was the one time I put a Neverready alkaline in my 'Ray. And I change batteries on my active basses once a year no matter what.

The string change didn't cause the noise in the pre-amp. They're two unrelated things.

jte
 
Knew someone would ask. From the EBMM website:

[Invalid or Expired Link Removed]


The Compensated Nut has been engineered to improve your Music Man instrument's potential to play perfectly in tune up an down the fretboard. Each string has an individual intonation pocket that slightly changes the effective string length, causing notes that traditionally play sharp to be more in tune.

The only problem with this is that if everything is in equal temperment and you are closer to pure intonation you will sound out of tune. There is no way to make a fretted instrument sound in tune. Your thirds will always be out of tune by at the most 15 cents, even your fifths are out by 2 cents. If you start moving that around you will sound out of tune to pianos, guitars, or anything else with equal temperment.

Just my two cents.

Sorry back to the post.
 
Yup probably time to change the 9v batts if you've been playing it for 16 months. (I change mine twice a year reguardless)

Scratches on the headstock left from the strings can be pretty normal, many Musicmans do that there just past the nut.
But jamming that thick of a string through the nut slots without properly modifying (widening) the slots will end up cracking the nut. I'd put the proper strings back on there.
 
Nope. Although I hope that .130 didn't stay tuned to E for too long, the tension would put a nice little twist in the neck.

Actually with all the strings being too thick, it may just be bowing the neck forward fairly evenly. Either way it can't be good.

Yeah. My first thought was that the heavier strings may have affected the neck
 
Well that seemed like a real bone-head thing to me, but it wasn't at all related to the problem he was describing so I didn't comment on forcing a 130 into a slot cut for a 105, and then tuning it clear up to E. Besides, he was worried about very minor scratches on the headstock at the nut, so I figured he's more into cosmetics than performance. That's like being concerned that your tires have small gravel in the tread.

jte
 
Sounds like you screwed the nut up a bit, probably need to take it to a bonifide guitar tech and have them look at it. Yeah and I will say, that is pretty boneheaded putting a low B 130 in place of the E string tightening it up to the key of E and not noticing it - pay attention next time. As far as your electronics go, I don't see how that could have effected them.