JC2 wrote: ↑Wed Mar 22, 2023 8:20 am
I really wish there was an excellent handmade 5/4 Piston CC on the market. Maybe Rudy Meinl makes one? I think there's potential for something great to happen if Meinl Weston, B&S or another big brand decided to make one. It seems like the 5/4 models are never made to the same quality as the handmade 6/4 instruments. E.g there's a 6450/2 but there isn't a MW 5450/2.
A tuba that could work really well would be a B&S MRP-C piston version made from hand hammered sheet brass. I'll be curious to see if that ever comes to fruition. I'm very doubtful though
You should look for an older PT-6... the earliest ones (early 90s?) were fully handmade. I owned a rotary PT6 from this era and it was fantastic. It was lively and had the "zip" that often comes with a fully handmade instrument. It weighted only 22 pounds!
Would a Gronitz PCK be too big for you?
Are Adams tubas fully handmade?
I doubt there's much interest from Meinl Weston to make /2 versions of many instruments... and sort of wonder if the 6450/2 only exists because el jefe wanted that for himself, so they made it an option for anyone.
FWIW, my understanding is that for the MW "/2" instruments and all B&S instruments, the large bows are sort of handmade by default... they are cut from sheet brass, brazed and hand-formed into conical sections, but then hydraulically formed for the last 5-10% to make sure that it's exactly the right size and taper. So, not 100% hand formed, but 90% is a whole lot better than doing it all hydraulically.
FWIW #2, the whole "issue" with hydraulically formed bows/tubing anyway is that when it's blown the material on the resulting bows is not of even thickness... the brass is thicker on the small end, and thinner on the large end. When these pieces are assembled end-to-end, the joints all have these uneven thick/thin parts butted up against each other, and this lack of smoothness at the joints -- multiple times over -- can cause disruptions to the sound waves/air/etc. However, the effects of this could be minor, and could be outweighed by the benefits of computerization and very high tolerances to design specs (low error).
When the bows/tubing are fully hand-formed, you can achieve a much more even thickness (or thinness, rater) of the brass, and eliminate those thick/thin joints between pieces of tubing... nice and smooth. The tradeoff, though, is human error... even if the parts are built well, they might be off-spec by some amount, and the effects of multiple parts that are a little bit "off" can quickly compound. That's why there's a lot of variation in handmade instruments -- some are spectacular, some are pitchy... but they all sound and respond great, so a lot of people tend to accept more intonation stuff than we should.
The MW/B&S method of doing 90% handmade and 10% machine-finished seems like a pretty fair tradeoff.