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Double Bass Change bridge to change sound?

I'm curious if a bridge alone can have an effect on a bass' sound? I know that thinner bridges and wingless bridges are supposed to brighten up the sound. Can going from a quality bridge to another quality bridge change the sound of a bass? In other words, how much does the bridge have to do with the overall sound?

Along those lines, might piezo bridge pickups create a different sound on a bass when different bridges are used, since the pickup, I assume, is mainly operating off the vibrations of the bridge?

Interesting in hearing from those with actual experience.
 
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Yes and yes. The bridge wood can have as sweeping an effect as any other wood choice on a stringed instrument, ie top, bass bar, fingerboard.

And I've done a lot of bridge re-shaping that transforms the sound of the bass. The pickup is obviously reading the local vibrations so that anything you do to alter that situation is going to have an effect.
 
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My bass had a bridge that went through several transformations, and then a replacement bridge. It's basically anecdotal, Jake and several other luthiers here have both done the work and seen the results on a ton of bridges, but here's what I've got. I have a carved Czech shop bass around $10 000.

Original bridge: This is what it shipped with, I had it like that for a month or so before the first doctoring, and I can't remember too much. It had a lot of extra wood in it and probably wasn't doing me any favours.

Doctoring: Some of the extra mass was removed, and aluminum bridge adjusters were fitted. The bass sounded and responded better, but looking back I am not sure how much of that can be attributed to the adjustments alone, as the bass definitely started "opening up" during that time.

Dr. Frankenstein: I had the wings cut off the bridge, in a parking lot. A rasp or file might have been used to clean things up a bit, but it was a pretty barbaric experience. Wow, it made a huge difference! My bass was considered a prime candidate for "the procedure" as it was a bit mid-heavy, and not all that quick to respond. Going wingless on a bridge that otherwise was mediocre made the bass a lot more focused, brighter in a good way, and the response was lightning fast compared to earlier that day. I knew there was no turning back, but I couldn't imagine anyone wanting to. **

A year or two later, I needed a new bridge. The original bridge wasn't that great and was doctored poorly before "the procedure". One of the adjusters was installed slightly crooked, and the leg was cracking as a result.

New bridge: The shop that I take my bass to knows my instrument well, and one of their bass guys has performed most of the work it has had (a minor rib crack, setup, new endpins etc.) He played a wingless bridge for a while and agreed that low mass was a good choice for my instrument, but he liked to do it covertly leaving the wings, because it lets you fly under the radar and avoid a lot of the politics that go along with it. The new bridge had wider foot spacing which was appropriate for my instrument, a lot of mass was removed from the kidneys, heart, and legs while still looking like a "normal" bridge, and just better workmanship all around. The sound and response greatly improved again. It retained the focus and brightness of the wingless with a lot more presence, the response was quicker and cleaner and for lack of a better adjective, it was just better.

I was amazed at how much altering a bridge could change the overall sound, but it was really eye opening to see and hear what a really good bridge could do. Switching from one good bridge to another will still have an impact, but having the same luthier carve the new bridge in the same fashion as the old one would be the closest thing to an apples-apples experiment, and "can you cut me a new bridge the exact same as my old one so I can compare the two?" isn't something I can afford to experiment with. If some of our luthier friends here feel like taking before and after bridge photos and sound samples on a bridge replacement that comes through the shop, we would love to see/hear that.
 
Yes and yes. The bridge wood can have as sweeping an effect as any other wood choice on a stringed instrument, ie top, bass bar, fingerboard.

And I've done a lot of bridge re-shaping that transforms the sound of the bass. The pickup is obviously reading the local vibrations so that anything you do to alter that situation is going to have an effect.

Interesting. Can you make any general observations about what types of bridge wood/shaping results in what kind of sound?
 
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Mr. Canada,
This may be the most unexpected sentence ever contained in a post of yours : "I had the wings cut off the bridge, in a parking lot."
Also - can you be more specific as to how your bridge was covertly altered? A photo, perhaps?
Thanks.
don kasper
It was probably the dark corner of the parking lot, well away from any CCTV cameras...
 
It was probably the dark corner of the parking lot, well away from any CCTV cameras...

All available CCTV cameras were being used to broadcast "Hockey Night In Canada" w/ Howie Meeker (?) (...screaming at the top of his lungs).
Nobody saw a thing in that dark corner of a Tim Horton's Donuts parking lot.
Oh, Canada!
Thanks.
 
All available CCTV cameras were being used to broadcast "Hockey Night In Canada" w/ Howie Meeker (?) (...screaming at the top of his lungs).
Nobody saw a thing in that dark corner of a Tim Horton's Donuts parking lot.
Oh, Canada!
Thanks.
Thanks for the mention of Howie ("Take the man!!") Meeker. At 93 he's long since retired to Parksville, BC, his shoes filled by lesser men.

I still miss him.
 
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I'm glad after all these years I can still keep you guys guessing. On a humid summer evening in the Eastern Townships of Québec, my bass, myself, a slightly mad aspiring luthier, and a small contingent of onlookers made our way out to a gravel parking lot. Indeed, there were no CCTV's in the area. Possibly because of the remote location, possibly because of the naive Canadian sentiment of "nothing going to happen here" and were we ever wrong.

While second guessing myself at the last minute as any sensible person would be in a parking lot with their bass, a guy they just met a few days ago and a hacksaw, the bass was propped up against a wooden chair. Questions like "shouldn't we take the bridge off the bass?" "is this safe?" "you're sure you've done this before?" started coming out of my mouth as I was instructed to hold the bass steady and whatever happens, don't let go.

As it began, "Oh no...." and my heart stopped. I was convinced this was the end, I had made a horrible mistake, why oh why did this seem like a remotely good idea? I had never heard such a ghastly noise come forth from my instrument, almost as if the very soul of the bass was being ripped out in some sort of exorcism. "... that's going to leave a mark" will forever be burnt into my memory. With a grin and a chuckle like a mad scientist the sawing continued, and in what seemed like hours but happened in seconds, the wing fell to the ground and joined the sawdust of its shoulder among the black gravel. I started to breath again, only to realize that this was only the beginning.

The second wing fell in much the same way, with all the agonizing rumbles of the first and no fewer shot nerves on my behalf. Still in shock but assuming the scary parts were over, I was confronted with another choice to make. "Kneecaps? You've come this far, you might as well keep going." And so it happened. Still clutching on to my instrument for dear life, more anatomy fell to the earth. Sensing that my heart was in my chest, I was reassured with words like "at least you didn't pass out" and "don't worry, we're almost there". The file came out next to smooth over the edges and I discovered that yes, my bass could make more horrific noises than when a hack saw is taken to the bridge.

The next few minutes are a bit foggy as is often the case following such trauma that is burned into memory, but the bass made it back into the bag and I was informed "the bar's open" and I went and made good on our agreed upon payment: a bottle of Maudite for both hands as I sat in a corner with a Blanche de Chambly numb and in shock.

The next morning we all gathered round for breakfast and variations of "you should have seen his face" and "he handled it better than so-and-so did" were exchanged, and then we went about the morning ritual of free improvisation followed by 2.5 hours of technique. The bass spoke in ways it never had, as my transition to the dark side was completed much to the amusement and pleasure of those present.

Long story short: Was told my bass would be a good candidate for "the procedure". I assumed this would be a trip to a luthier and I'd have a week to warm up to the idea, instead of some parking lot affair right then and there. The vivid memory has stuck with me ever since, but I'm a believer in a wingless/low mass bridge for this particular instrument. Not every bass is.

As for photo(s) of my current bridge, it isn't all that remarkable and without the reference of a similar bridge blank, it doesn't look out of the ordinary. The kidneys and heart have been opened up slightly, the kneecaps are quite slender, and some extra weight has been removed where possible. While it is a cello bridge, the photo I am including has had the right side of the bridge carved where the left side is has been untouched, to give an indication as to how much wood is removed in the process. https://trianglestrings.com/wp-content/uploads/2015/07/IMG_1016-e1436560988319.jpg
 
Mike,
What a tale! I could almost hear the howling of a wolf (-tone) in the background...
Thanks for the photo.
I once saw a photo of a bass bridge that had be sculpted/carved to look almost like a mammal's bone - NO hard edges or sharp angles, whatsoever - all rounded, organic shapes. It was done by a luthier in (possibly) South/North Carolina and his name was (possibly) Thomas Keleshnik (sp?). It was beautiful, as if it had grown on a tree, or been part of a skeleton. I didn't realize at the time that he may have done this for mass-reduction as well as for aesthetic reasons. I have not been able to find that photo.
The only wingless bridge that I've ever seen belonged to (Woody Shaw's) NYC jazz bassist, Stafford James in the late 70's. I didn't get a chance to ask him about it, but we all noticed it immediately.
Thanks.
 
I once saw a photo of a bass bridge that had be sculpted/carved to look almost like a mammal's bone - NO hard edges or sharp angles, whatsoever - all rounded, organic shapes. It was done by a luthier in (possibly) South/North Carolina and his name was (possibly) Thomas Keleshnik (sp?).
Tom Kelishek, still fairly debilitated by a stroke, this bass was featured in the magazine DOUBLE BASSIST in the late 90s...if the bridge pics aren't in the link below, I'll scan and post'em...

TK 92 Double Bass | TalkBass.com
 
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Wow. This is all making me strongly consider that Deuce Bridge thing... And I'm thinking I may have too much mass on my bridge... Although I'm not actually looking for a brighter sound... opposite actually.
 
Mike,
What a tale! I could almost hear the howling of a wolf (-tone) in the background...
Thanks for the photo.
I once saw a photo of a bass bridge that had be sculpted/carved to look almost like a mammal's bone - NO hard edges or sharp angles, whatsoever - all rounded, organic shapes. It was done by a luthier in (possibly) South/North Carolina and his name was (possibly) Thomas Keleshnik (sp?). It was beautiful, as if it had grown on a tree, or been part of a skeleton. I didn't realize at the time that he may have done this for mass-reduction as well as for aesthetic reasons. I have not been able to find that photo.
The only wingless bridge that I've ever seen belonged to (Woody Shaw's) NYC jazz bassist, Stafford James in the late 70's. I didn't get a chance to ask him about it, but we all noticed it immediately.
Thanks.
Hey Don..........I have all the Double Bassist issues published since day one. I'm pretty sure there was a specific picture of that bridge. If you're interested I'll get out that issue and scan it for posting here.
 
Hey Don..........I have all the Double Bassist issues published since day one. I'm pretty sure there was a specific picture of that bridge. If you're interested I'll get out that issue and scan it for posting here.

And the race is ON!
 
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