Bass Valve Weight

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LowBrassJunkie
Posts: 64
Joined: Jul 19, 2020

by LowBrassJunkie »

Does anyone have a rough idea of how much the different bass valve sets weigh? Was curious how dual hagmanns or tru-bores would compare to an axial set up, or to standard rotors, etc. Thanks!
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

In my experience, Hagmanns and rotors will be similarly light, trubores and axials similarly heavy.

Who made them always makes a huge difference, of course... valve location, bracing, wrap all make a difference. Even the two sets of independent Trubores (normal and Bollinger) are quite different, I think the Bollinger ones are much heavier.
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ithinknot
Posts: 1339
Joined: Jul 24, 2020

by ithinknot »

Yeah, weight distribution vs mass...

Hagmanns are relatively light - for the space they take, there's not much metal inside.
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

[quote="ithinknot"]Yeah, weight distribution vs mass...
[/quote]

Yes, forgot to mention. My Holton 185 is a bit awkward because so much of the mass is way off to the left and forward. Axial horns are usually pretty good in this regard, IMO.
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brassmedic
Posts: 1447
Joined: Dec 14, 2018

by brassmedic »

Balance is more important than absolute weight. Think about why tenor trombones have a counterweight.
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GabrielRice
Posts: 1496
Joined: Mar 23, 2018

by GabrielRice »

[quote="Burgerbob"]In my experience, Hagmanns and rotors will be similarly light, trubores and axials similarly heavy.

Who made them always makes a huge difference, of course... valve location, bracing, wrap all make a difference. Even the two sets of independent Trubores (normal and Bollinger) are quite different, I think the Bollinger ones are much heavier.[/quote]

That mostly tracks, except I think Bollinger TruBores are the same as standard ones but with less tubing, so they should actually be lighter.

However, the caps of TruBores were changed to be significantly heavier at some point, so if you're comparing an old set of standard ones with a newer set of Bollinger ones, that would be the difference you notice.
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

[quote="GabrielRice"]

That mostly tracks, except I think Bollinger TruBores are the same as standard ones but with less tubing, so they should actually be lighter.
[/quote]

The ones I played had a TON of bracing (the wraps were pretty different), I think that made the change.
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GabrielRice
Posts: 1496
Joined: Mar 23, 2018

by GabrielRice »

[quote="Burgerbob"]<QUOTE author="GabrielRice" post_id="149950" time="1622853646" user_id="102">

That mostly tracks, except I think Bollinger TruBores are the same as standard ones but with less tubing, so they should actually be lighter.
[/quote]

The ones I played had a TON of bracing (the wraps were pretty different), I think that made the change.
</QUOTE>

Interesting. I've never taken a really close look at one.
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LeoInFL
Posts: 252
Joined: Apr 19, 2018

by LeoInFL »

Though I've never tried them, I've read often that the Kanstul CR valves are really lightweight.
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tbonesullivan
Posts: 1959
Joined: Jul 02, 2019

by tbonesullivan »

[quote="LeoInFL"]Though I've never tried them, I've read often that the Kanstul CR valves are really lightweight.[/quote] They are. They are not made from a solid piece of brass, so there is a lot of air space inside the valve. Love mine. Sucks that Kanstul doesn't really exist anymore.