Yamaha Xeno Valves

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MTbassbone
Posts: 558
Joined: Apr 21, 2018

by MTbassbone »

Did Yamaha use the same valves across the Xeno line? Slightly oversized rotor I think.
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

Some have different port orientations, but yes, largely the same.
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MTbassbone
Posts: 558
Joined: Apr 21, 2018

by MTbassbone »

[quote="Burgerbob"]Some have different port orientations, but yes, largely the same.[/quote]

Basically slightly oversized rotor right? I played an 830 today. It was nice, but I didn't have a brace or strap to work with so it felt like it wanted to tip backward a bit.
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tbonesullivan
Posts: 1959
Joined: Jul 02, 2019

by tbonesullivan »

The YSL-882OR is mentioned as having a "balanced response rotor" which sounds like it is internally ported

"The balanced response rotor system helps air release evenly into the F-attachment slide creating a smoother transition from the Bb open horn to the engaged F-attachment."

All of the other Xeno horns seem to have standard rotors. The YBL-830 does mention that both rotors spin in the same direction, which is supposed to give a smoother slur into the valve register. The previous 613H had the F valve rotate the usual direction, while the G/Gb valve rotated in the opposite direction.
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brtnats
Posts: 341
Joined: Apr 26, 2018

by brtnats »

There’s a Japan-only Xeno with their version of an axial called a V-valve. Comes with a wider slide for more clearance.
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

[quote="MTbassbone"]<QUOTE author="Burgerbob" post_id="162579" time="1636842469" user_id="3131">
Some have different port orientations, but yes, largely the same.[/quote]

Basically slightly oversized rotor right? I played an 830 today. It was nice, but I didn't have a brace or strap to work with so it felt like it wanted to tip backward a bit.
</QUOTE>

Yup. The cores are lightened as well.