Jonathantuba wrote:Lee Stofer wrote:Many instruments, both modern and antique, were made of good parts, but were not consistently soldered-together well in the ferrules that form the joints between the branches of tubing.
This makes me wonder if this is a large factor in hand-made instruments being usually considered better. Maybe much greater care is taken with their assembly, so they are more consistently good? This would explain why some people find the MW 2000 a lot better than the 2155 while others find the latter just as good - it depends if they are comparing to a well, or poorly assembled 2155

I've been following this thread with interest, but am not well versed enough with 6/4 CC tubas, York tubas, or metallurgy to contribute much to that side of the discussion, however issues of Meinl Weston 2155s vs. 2000s is something I'm fairly up to speed on, being a MW2000 player.
I've written several times in the past about my observations and experiences with the MW2155 and 2000, each time basically pointing out that there are
a lot of differences between the two models.
I first would like to point out that tubas have to be
assembled by hand, in other words, the assembly of the 2155 and 2000 is the same (within reason, of course). "Handmade" only applies to the way the
parts are made, in that instead of hydraulic formation of bows, mechanical means of making bells, and drawing tubes, it is all done by hand or as close to it as possible. The result of the hand working is that the parts of the 2000 do not have a uniform thickness (hydraulic formed bows, etc. are "supposed to" in theory) and that the brass is "thinner." I don't know for sure if the 2000 uses thinner brass from the start or if the hand working makes it so, but it is notably lighter and thinner than the 2155.
I've gone on the record more than once as saying that I wish Meinl Weston would not claim the 2000 to be based upon the 2155 since it just makes everyone think they rebent the leadpipe, flipped the 5th valve 90 degrees, had some fancy evgraving done, and decided to rebadge it as the model 2000 and sell it for $5000 more. This is not the case.
The 2000 is far more different than 2155 than most people realize. The 2000 is a copy of Warren Deck's last 2155 that he had been tearing apart and reworking for quite some time. It has been my observation (visual and playing side-by-side) that the taper of the 2000 is very different than the taper on the 2155. Yes, they share the same specs on height, bell diameter, valve bore, etc., but it's what happens in between that makes the 2000 special.
The differences in the 2000 start at the leadpipe. It's smaller, takes a different path (ie, more of a "sweeping curve"), and has a different venturi. The receiver is larger than I've encountered on stock 2145, 55, or 65 tubas as well, for what that's worth. Having done some playing on some Meinl Westons of the same model with different leadpipes, I've come to the conclusion that leadpipes have a lot to do with the way a tuba plays, so much in fact that I feel the leadpipe can make or break an otherwise nice tuba. My experience is that they are often too large.
The valve block on the 2000 is very similar to the 2155, but is a little different because of the way the leadpipe comes in to it and the way the 5th valve follows it, although there are more similarities than differences here.
The flipped 5th valve allows for a wider 5th slide on the back of the tuba.
The tuning slide is different too, it sits higher up in the body and is (at least on the ones I have seen and played) a
little wider on the 2000.
The physical weight (gauge of the brass?) of the 2000 is far less than that of the 2155, and the bracing on the 2000 is different than the 2155, too. My F tuba weights about as much as my 2000 does. This does make a difference in the way the horn plays. The 2000 is just more "lively" and is designed to ring, whereas the 2155 comes off as a bit "dead" sounding to my ears.
The intonation on the 2000 (when I play it) is far better on the 2000 than any of the 2155s I've played. I believe the valve slide lengths may have been adjusted slightly on the 2000, but I think it really comes down to all of the "little things" coming together to make a tuba with a great sound and great intonation that just about plays itself.
I have found that some 2000s are better than others, and found the same when playing 2155s, although I would call both set of 2000s and the several 2155s I tried to be reasonably consistent from one horn to the next.
So, for me the 2000 ended up not only way more $, but way better.
The 2155 is not a bad tuba though. I was simply fortunate enough at the time to have the means to give the 2000 a serious look, and am pleased that I did.