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Double Bass Too much "thump"?

Turn Em Loose

It’s the bass player.
Nov 22, 2005
4,623
5,203
Central Ohio
This might be better of in the Strings section, but thought I'd start here.

Hybrid Shen. Full Circle pickup. Medium S42 Spirocore's. At the end of the fingerboard the G string is about 7.5 mm high and the E string is about 9 mm.

Sooooo....I get an (over) abundance of low mid thump. It peaks at 200 hz. Goes from about 150 to 250. It's quite pronounced and, IMO, doesn't sound that good. Kinda muddy.

Anybody else deal with this? Or is it just me?

I'm going to ASSume it's technique as I'm kinda sucky at URB. But might it be a characteristic of the Spirocores?
 
Probably related to the wolf tone of the instrument. Many (if not most) basses get murky/woofy around 200hz, usually around the Ab or A on the G strings, and also have problems with the open A string.

Is it a problem in practical playing situations, or is it something more noticeable to you as a player? Is it the same in every room? Also a problem playing arco?

John
 
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Thanks, guys, for all the responses! I appreciate it!

I'll add that I first really noticed it since this past Xmas. Got a new iPad (to replace my oooollllld first gen iPad that is starting to lose it). The new iPad has a much better mic on it. I mean, it's still kinda sucky. But way better than the ooolllld iPad! I record myself, not just for self-torture, but to hear how I'm playing. Like most of us do. (Or should do!) I noticed a low mid "thump" at the start of each note. I would assume that's somewhat normal? But to me it's excessive.

It's funny because I didn't really notice it until I recorded myself with the new iPad. From my perspective while playing it's not as noticeable. I did confirm the recordings with a frequency analyzer while unamplified.

Having said that this could all be perfectly normal and maybe, with the new iPad, I'm just "hearing" myself recorded with a better mic than in the past and it's throwing me off. IOW, this could alllll just be in my head. But what the heck....Thought I'd post it here anyway and pick the brains of more experienced players.





would you be willing to share a decent audio recording or video? definitely would help diagnose what's going on.

Mmmmm....maybe. Honestly, I'm not too pumped up about putting a recording of my playing up here. I DO have a semblance of an ego which may not be able to withstand the direct hit. I'll see what I can do.

Have you tried messing around with the string height?

Yes. Seems to be there at a slightly lower string height, too. But maybe the strings need to be lower still? Or higher?

Less side of the finger, more pad of the last finger joint. Don’t pull the string to the side, push the string down toward the board. It costs you power, which it sounds like you have an excess of, and gains you agility and more point on the note.

I tend to use my pads. Coming from 'lectric I use both my fingers, and their pads, on my right hands as opposed to the side of my first finger.

Or, it may be the inherent natural tone of yours bass.

That's just may be it.

Do you know an accomplished player? Have him/ her play your bass. If nothing changes, then you'll have to look more into the bass itself. If the problem isn't replicated, then maybe technique is the issue.

I had not thought of this. Thanks!

Probably related to the wolf tone of the instrument. Many (if not most) basses get murky/woofy around 200hz, usually around the Ab or A on the G strings, and also have problems with the open A string.

Is it a problem in practical playing situations, or is it something more noticeable to you as a player? Is it the same in every room? Also a problem playing arco?

John

I hadn't thought of that, either. I do get a worf tone around Bb/B on the G string. It tends to be more noticeable with a bow. But even pizz it's really hard to play the lowest B on the G string "in tune". The tone sort of wobbles, if that makes sense.

My practical playing situations are almost all with a piano duo or a piano/sax trio. And I have not really noticed it too much on gigs, now that you ask. So I would say it's prolly more noticeable to me as of late while recording myself (see my response above). I have a little Clarus 4plus and a Genzler 10-2 I use for upright. Though I've used it with my 'big" rig in the past and it's sounded quite good. A Genzler MG800 and Mesa SW115.
 
It's not the Spiros. That's not a thumpy set (at least not for the first few years).

1) A poorly-fit or wrongly-adjusted soundpost can contribute to a thumpy sound. See if someone will spend time with you adjusting and experimenting.

2a) You don't talk about WHERE this is happening. If you sound thumpy in your 8x8' practice room that's not a surprise. If you sound thumpy in the middle of your back yard that's some thumpy.

2b) Similarly, if you sound thumpy jammed in a corner move into a different part of the room and see how it goes.

3) Do you ever bow? 10-15 minutes of bowing a day can give your instrument a welcome shake. I know that sounds like mojo -- maybe it is mojo -- but you might want to give it a whack anyway.

Good luck. There is an answer!
 
My bass seemed a lot thumpier when I was first learning, so if you're a relative beginner, your technique could be a lot of the issue.

But if you only hear it on the new i-Pad recording, I suspect the main issue is a mike that doesn't record the bass sound very well. My experience is that most microphones record my bass as sounding very muddy, when its live sound is not the least muddy.

IMO, the best way to hear the live sound of your bass is to stand facing a wall or corner while you're playing. Or get someone else to play it for you; but still the bass probably sounds different when you're playing it...
 
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Record your bass using something other than an iPad and compare.

All I've got is my ipad and iphone. Kinda low tech around here.

After another crazy weekend I got some time to play the big boy. First half is about 6 inches from the end of the finger board. Second half is right at the end of the fingerboard. I tend to feel more comfortable about 4-6 inches from the end of the fingerboard, and you can hear it in the clip.

Funny thing is, now I don't really hear the "thump" in this clip. And I must have deleted the recording(s) I referred to. Soooo....Who the heck knows. Thought I'd post this anyway. Like I've told The Wife: My transition into senility will be seamless. There isn't a day that goes by that I believe I'm already transitioning.

Wait. That didn't sound right. You know what I mean! Not there's anything wrong with that!

[Invalid or Expired Link Removed]
 
A quick afterthought: When I record myself I generally play a head, walk few choruses, solo, walk one or two more choruses then play the head out. maybe my "thump"ing ws when I was soloing. I tend to try new stuff and push myself some so it's possible my hands couldn't keep up with my brain. Which is a sad commentary on my hands! :meh:

Thanks again for all the responses! I appreciate any and all feedback!!
 
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