Alex C wrote:...Like Mike Sanders who switched from an Alexander CC to a Yorkbrunner...
There must be others I don't know who have made similar changes. Pitch in guys, tell us what you heard.
I didn't miss a concert by the San Antonio Symphony during the time Mike made that change. I had been attending for at least a couple of years when he played the Alex, and then continuously after the switch until he left the orchestra (first to sub in Salt Lake City, and then for his current gig in St. Louis).
It was a long time ago, but I can still clearly hear the sounds in my head.
It should be pointed out that the SA Symphony played in Lila Cockrell Theater, a 3000-seat auditorium built for HemisFair '68. The hall is quite large, but the stage is dead and it's hard to hear oneself, even with the shell that the symphony used. It takes some effort not only to fill the hall, but to feel like your are filling the hall. I remember from my own opportunities to perform there that it is an intimidating place to play.
I usually sat right in the middle of the last row of the Mezzanine, right at the back of the auditorium. Acoustically, this was just about the best seat in the house--the orchestra always had a full, balanced sound in that spot.
When Mike played the Alex, the sound had force, but it clearly came
from the stage. Any time he wanted to be heard, he was heard, and clearly. But I could close my eyes and point to where he was sitting, just as I could with the trumpets and trombones.
When he switched to the Yorkbrunner, the sound seemed to come from everywhere at once. It was like the difference between a spotlight and general room lights. The big-tuba sound didn't leave shadows. The word I've always used to describe that is
presence. The Alex had
projection, but the Yorkbrunner had
presence. Loudness wasn't even a part of my thinking when comparing them. I think that's reasonably consistent with what Wade is saying.
The difference was not subtle. And it wasn't a strictly musical difference--Mike has always played with beautiful musicianship no matter what the instrument.
It reminds me of the difference between pressure and flow. You can put a nozzle on the end of a hose and create more pressure. The resulting stream has a lot of force behind it, and it will project a fair distance. When you remove the nozzle, the flow will likely
increase, but the pressure will
decrease. It might not project the same way, but it will get you wetter faster. If you want to be bathe something in water, you don't use the high-pressure nozzle.
I suspect the bell shape and size has a lot to do with it. My Holton has a 20" bell with relatively little flare and a huge throat. My York Master has a 20" bell with much more flare and a much smaller throat. The wide bells increase dispersion, and the big throat increases the bandwidth of the sound (the sound is more variably affected by the shape of the bell). The result is a broader dispersion over a wider range of frequencies around the central pitch, and I think that's what gives it the presence. The big bell of the YM has some of that quality but not as much as the Holton. My Miraphone has a 16" bell with a smaller throat than the Holton. But the curve of the bell flare is more spiral and less circular, it seems to me, and that is more like the difference between an exponential horn on a loudspeaker and a bi-radial horn. The bi-radial horns are used for near-field speakers, and the exponential horns are used for projecting sound over a distance.
There is a less tangible aspect to the difference in Mike's sound, though I suspect it is related. The sound seemed
friendlier to me. It made me smile, and this was even before I had returned to playing the tuba, so I wasn't really perceiving it with tuba-player ears. That may be an aspect of the presence--it was more personal.
It should be noted that Mike never displayed a woofy sound--even on the Yorkbrunner the sound has had focus and clarity.
"Blend" is a subject I have some trouble with. Jacobs seemed to blend just fine with the CSO trombones in the recording of the CSO low-brass. The excerpt they played of, for example, the Berlioz recitative for brass, was a single, integral wall of sound, despite the wide difference between Jacobs's voice on the York and the trombones. I think the sound got that integration from two things: Consistency and togetherness of articulation (and release), and perfect intonation. I'm not one who believes tones have to match to blend--in fact--if they match too much they lose any quality of blending and merely sound like a single voice.
Rick "chasing that sound for 25 years" Denney