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I don't quite know if this is what you are after but on recommendation of Alan Baer I shortened the receiver gap on my PT6. It now blows a lot more freely and doesn't back up in the low register anymore. I still have the exact measurements if you would like them

Cheers
Bjorn

I still have the exact measurements if you would like them

Could you post that? PT-6 owners would like to see that if just out of curiosity.

^ Ditto.

I just had the pleasure of playing a MW Thor last week and I was immediately struck by how much easier to play and cleaner the low register was on it compared to my PT6. If there is something I could do to my tuba to get nearer to that feel (and if I could afford it) I'd do it in a heartbeat.

Here is the measurement that Alan Baer sent to me and some of his email. I had it done by my repair guy in Australia and he took off the original and bored it out. I think it cost me about $100 Aus. I have just found the horn is more direct and opens up the horn right up. I use a Pt 88 and PT88+ as my two general mouthpieces.
The gap from end of the piece to the lead pipe needs to be about .400. It's probably double that now
depending on the piece your using. This gets very technical and I can't write it all down.. The receiver is the problem. Get a receiver from Meinl from a 6450 and this will fix it.


Hope this helps

Cheers
Bjorn

...

If this gap is that between the end of the leadpipe and the end of the mouthpiece taper, would the mpc shank make a difference? A Euro shank mpc has less than 1/2" gap and an American shank has 1/8"+ on my horn. However, both shanks have nearly the same diameter at the mpc exit. Inserted to a cylindrical receiver, that would mean there's a larger diameter mismatch at the end of the American than the Euro.
What is an "adjustable" receiver?

This is the worst crime committed in the history of the Internet and DP's reaction to people conversing on their own is TOTALLY mature and appropriate. I'd love to talk about my leadpipe. If only I knew what the question was.

LJV wrote: I wonder what the OP's teacher thinks of PT6 leadpipes...

ROFL

My hometown had 2 funeral homes and 1 coffin builder, Od Man Schmitz.

Well, Chip decided that he would start going to the city for his coffins, even though his family had bought coffins from Old Man Schmitz' family for several generations.

George, the other mortician in town, kept up HIS business' tradition (newer, but still going for 50 years at this point) and kept buying from Old Man Schmitz.

Except, there was one problem...Old Man Schmitz never married, and never trained anyone to take over his business. Which caused George a huge problem the day Old Man Schmitz died, because...

When you're out of Schmitz, you're out of biers.

the elephant wrote:I wanted to talk about schmutz. I thought the thread had progressed to that point based on the one response.

DP wrote:schmutz

Schmutz. Schmutz, schmutz schmutz schmutz, schmutz. Schmutz. Schmutz. Schmutz schmutz schmutz.

Schlitz?

Nope -- sorry -- "no Schlitz" (Sherlock notwithstanding) ...

BTW, did they ever sell Schlitz in crocks? When I was little (way too many years ago!), I remember hearing a couple of adults talking, and one said something about a "crock of Schlitz" (I think -- that's what it sounded like, anyway). Always wondered ...

eupher61 wrote:When you're out of Schmitz, you're out of biers.

That would be un-bier-able!

Kevin Hendrick wrote:

eupher61 wrote:When you're out of Schmitz, you're out of biers.

That would be un-bier-able!

Im Himmel gibt's kein Bier,
Darum trinken wir es hier.
Denn sind wir nicht mehr hier,
Dann trinken die andern unser Bier.