Bass Trombone additional valve
- Confuz
- Posts: 2
- Joined: Mar 28, 2023
Can you modify a single valve bass trombone into a double valve bass trombone?
- BGuttman
- Posts: 7368
- Joined: Mar 22, 2018
The answer is "yes, but".
A conventional wrap Bach or Holton can have a valve that plugs into the narrow loop of the F-attachment. These aren't common.
Any other bass (open wrap, or a wrap like a King or Yamaha) will need some serious surgery to add another valve and appropriate tubing. This modification will cost around $2000 (US). Not a casual thing to consider. It may be more cost effective to find a used 2 valve bass.
A conventional wrap Bach or Holton can have a valve that plugs into the narrow loop of the F-attachment. These aren't common.
Any other bass (open wrap, or a wrap like a King or Yamaha) will need some serious surgery to add another valve and appropriate tubing. This modification will cost around $2000 (US). Not a casual thing to consider. It may be more cost effective to find a used 2 valve bass.
- hornbuilder
- Posts: 1384
- Joined: May 02, 2018
Some more information would be helpful.
What horn do you have? Are you wanting a removable second valve? Or are you wanting to convert your single into a permanent double valve setup?
What horn do you have? Are you wanting a removable second valve? Or are you wanting to convert your single into a permanent double valve setup?
- Confuz
- Posts: 2
- Joined: Mar 28, 2023
It is a Bach 50BO that I want to convert to a permanent double valve
- spencercarran
- Posts: 689
- Joined: Oct 17, 2020
Physically possible, but quite expensive. The most straightforward way is to buy a double valve section (from Shires, M&W, Instrument Innovations, or someone else) and replace your existing single valve section. The parts (if purchased new from manufacturer) could easily run a couple grand, and the skilled labor of a competent tech to install it properly is not cheap either. Buying a trombone that already has two valves is likely the path of less resistance.
- hornbuilder
- Posts: 1384
- Joined: May 02, 2018
Okay. The question makes sense now.
What type of valves are you wanting?
As an example, I (M&W Custom Trombones) offer a double valve section, complete, using my own design M&W rotor valve, installed on your bell/tuning slide, for $4,275.00.
What type of valves are you wanting?
As an example, I (M&W Custom Trombones) offer a double valve section, complete, using my own design M&W rotor valve, installed on your bell/tuning slide, for $4,275.00.
- hornbuilder
- Posts: 1384
- Joined: May 02, 2018
Here is a picture of one such project....