• Ernie Ball
  • MusicMan
  • Sterling by MusicMan

Scarbee

Active member
Joined
May 19, 2005
Messages
35
Location
Holbaek, Denmark
Hi,

When I play a c#2 (on a-string) the pickup creates a slight distortion during the sutain. First I thought it was my speakers - then tried headphones - result is same.

Then I thought it might be a little sting buzz - so I tuned the a-string to G# and played the C# on 5'th fret instead - as i knew there was no buzz at all here.

Now it distorted here too.

What is this? If I play a C2 or D2 there is no distortion? Is pickup bad?

Battery is brand new. Tried change that too.
 

Scarbee

Active member
Joined
May 19, 2005
Messages
35
Location
Holbaek, Denmark
I tried new strings result was same. One interesting note - it seems that problem is biggest if I play direct over the pickups.

Mystery is still why C# note distort and not D or C. Sound like PU doesn't like the frequency of that note?
 

strummer

Enormous Member
Joined
Aug 28, 2005
Messages
4,513
Location
Safe European Home, Stockholm, Sweden
I tried new strings result was same. One interesting note - it seems that problem is biggest if I play direct over the pickups.

Mystery is still why C# note distort and not D or C. Sound like PU doesn't like the frequency of that note?

Ummm, a longshot, and I've never heard of it on a MM, but there could be something wrong with the potting of a coil, so that at the C#2 frequency a coil resonates?That would make any C#2 played distort in the same way, though, does that happen?
****, this is Dudley territory, I should probably shut up:)
 

Scarbee

Active member
Joined
May 19, 2005
Messages
35
Location
Holbaek, Denmark
Then I'd suggest dropping customer service a note, see if they can help in any way.
I have never dismantled an MM pu, and I don't know what they're potted with, so I won't try to tell you how to fix this yourself...

Problem is I live in Denmark... so I hope there is a fix for it.:eek:
 

oli@bass

Well-known member
Joined
Jul 23, 2007
Messages
4,272
Location
Switzerland
Are you sure it's not the speaker?!

Because: Listening over my USB Sound Sticks (Harman Kardon), depending on volume, all notes have a slight distortion in the uppers mids. Over my high quality USB Headset (Logitec), none of the notes distort!

Try a different set of speakers and/or headphones.
 
Last edited:

strummer

Enormous Member
Joined
Aug 28, 2005
Messages
4,513
Location
Safe European Home, Stockholm, Sweden
Here is a sound clip that shows the distortion. Notice that distortion is not on the d- or c-note.
In midle I have turned up full for treble so it is easier to hear.

At end I have tuned string down and played a C#2 on fret 5 - also distort here.

www.scarbee-downloads.com/bass/mmsr4_distortion.wav

Weirdness, I have no idea what that is???
But, it's definitely not his speaker, as the distortion is way noticeable through my very nice soundcard and head phones:)
 

oli@bass

Well-known member
Joined
Jul 23, 2007
Messages
4,272
Location
Switzerland
Weirdness, I have no idea what that is???
But, it's definitely not his speaker, as the distortion is way noticeable through my very nice soundcard and head phones:)

This is really weird. I downloaded it and listened to it again. Same effect. If listened to at low volume I cannot hear any distortion at all, if made louder all notes distorted. Also loaded the soundfile into Logic and checked it with the Sample editor. The wave pattern looks very smooth. Gotta find a way to listen to this soundfile on a hifi system... (I hate it, if I can't hear something others can :mad:)

Sorry if may post wasn't helpful!
 

mynan

Well-known member
Joined
Feb 25, 2007
Messages
2,682
Location
Spring Lake, MI
Took a listen. I hear it, but it doesn't sound like distortion. It sounds like something rattling, which kinda makes sense because the C# could be the "tone of resonance" for something that might be loose.

I had a Peavey Cirrus 5 and the tuners would rattle like that on some notes. You could even hear it on recordings.
 
Last edited:

Scarbee

Active member
Joined
May 19, 2005
Messages
35
Location
Holbaek, Denmark
Acoustically somthing rattles if bass is in playing position - but that is on 1.st fret.
I can't loacate that rattle - but it disappears if bass lies down on back.

C# does not rattle acoustically.

I talked to a luthier who is educated at Tobias and he said it may be the body that resonate - in this case I'm screwed:eek: as he said it would be very costly to locate problem and that you may had to drill holes in bass to get rid of.

I realize I have a bit of "supersonic" ears - but on the other hand that is what have helped my career so far... the bad thing is that I hear the "errors" easily.:rolleyes:
 

tegzsa

Active member
Joined
Jun 28, 2005
Messages
38
Definately sounds like a sympathetic rattle whenever C# is played. Saddle height screws and saddle springs, and string tensioners (trees) at the headstock are usually the prime suspects.

The low B on my Bongo made a similar sound when I dropped the action because one of the height screws kept vibrating loose with the reduction in break angle. Raised it up a little bit-no more noise.
 
Last edited:

Scarbee

Active member
Joined
May 19, 2005
Messages
35
Location
Holbaek, Denmark
Definately sounds like a sympathetic rattle whenever C# is played. Saddle height screws and saddle springs, and string tensioners (trees) at the headstock are usually the prime suspects.

Have tried different things trying to locate ratlle like the springs and height screws - but with no success.
Hope it's not preamp or pickups that is broken.

Haven't heard from support yet..

Could the springs under pickup make distortion like this?

too me this sounds more like the preamp is broken..

cheers

Thomas
 

mynan

Well-known member
Joined
Feb 25, 2007
Messages
2,682
Location
Spring Lake, MI
too me this sounds more like the preamp is broken..

Not sure what you mean by broken, but if it were a malfunctioning pre-amp there wouldn't be a problem with just one note It's not a keyboard. Besides, it really sounds like a rattle and not distortion.
 
Top Bottom