GH wrote:Would not a pick up directly attached to the tubing have a rather large effect on the sound?
Not as much as you'd think. The sound is *fairly* true (but can be a bit squirrely pitch-wise)
As of late, a large percentage of gigs I do are in NYC clubs... with drummers and other large stuff... the pickup situation allows me quite a bit of control. I do use effects sometimes, but not always -- quite often I'm just amplifying the regular tuba sound itself.
It also allows me great dynamic control -- I can play really soft if I want, which is really handy when playing a bass role.
With the right combination of amps and all I can get a pretty true and natural tuba sound.
Here's a few short samples where I go for a standard acoustic tuba sound through the pickup:
This one is from a Tuba Love demo studio session -- there is no acoustic tuba signal at all... it's all from the pickup with no effects.
http://www.tubajoe.com/sounds/samples/i ... _intro.mp3
This one is a live clip from a recent Tuba Love gig -- playing in a bass role
http://www.tubajoe.com/sounds/samples/live1.mp3
This one is from a folk album I played on -- it is a mix of pickup and regular mic (they left in a little descant thingie I played just messing around at the end

)
http://www.tubajoe.com/sounds/samples/luna_end.mp3
Sound goes way beyond JUST the pickup... there are lots of other factors involved -- I've listened to a lot of tuba players play amplified and I think the best way is via pickup OR putting a mic down the bell, which if done correctly gets pretty much the same results... But, I've also heard some great players do well with a small bell mic as well as a standard mic on a boom stand.
The pickup thing can be really cantankerous and difficult. It works, but is not an ideal situation.
Experiment... find what works best for you.
AND... for you bass geetar players... (as I noticed this thread had some of that content) my sister is featured in the March issue of Bass Guitar magazine. (I may have already plugged it, but what the hell...)