I'm a tenor player who has been reluctantly dragged into playing bass to keep some favorite groups going. I've been searching for "the one" bass that fits my style, and it has been a long, expensive search. An Olds P24g has been the one stock horn that most closely got where I was going, but they don't really make a modern equivalent of that any more. Everything is just too big, too woofy, too heavy, too cumbersome. I don't really want to change the way I play tenor just to occasionally pick up a bass.
I did play a Holton 159 that I really liked, but it was missing that second valve.
So I decided to put together specs that I thought would get me where I wanted to go - knowing, of course that specs aren't everything, but just not having the resources or access to try out all horn models past and present. This is what I came up with:
Bell: 9"
Slide: 547/562 dual bore, TIS
Valves: double with removable second valve
Well, I got everything except the removable 2nd valve, but I had to hack together horns to do it, and I had to use stuff (old junk) from FleaBay to do it. The slide I used is on paper a 0.554" - 0.565" bore, according to the documentation I found.
First, I found an Olds S-20. It had the 9" bell, dual bore slide, and TIS. It also had a terrible single valve, which was scrapped for parts. The Olds played well as an original horn, with a nice big sound, so it was a good starting point.
Next I found a valve section from a Duo Gravis. This was cool because the DG has a smaller bore through the valves than most basses, but it matches the bore through the S-20 valve, so it was a good replacement.
I guess I could have salvaged a Yamaha YBL622 valve set to get the removable valve, but that just wasn't available.
The S-20 on its own was called a bass in the marketing materials, although horns from Holton with the same specs were called tenors. I measured the bell throat diameter right in front of the rear ferrule - the smallest diameter on the bell - for 4 horns I have available: 88h = 0.890", S-20 = 0.902", 72h = 0.978",and Kanstul 1662i = 1.010". So, yes, the throat of the Olds is bigger than a typical tenor (but not much) and not nearly as big as something described as a "smallish" bass by some people.
This altered Olds/King to me plays like a real trombone. It could give a clarinet player a concussion with its low C. It also has a good high range. It plays everything nicely with a 2G, although a 1.25G gives low notes serious power, and a Schilke 60L really rocks the pedals. For a guy who's not a bass player, and not a low note king. The Kanstul by comparison sounds dull and woofy.
Anyway, I think I'm happy with my Frankenhorn. It sounds good, and I can play low and high with it. I can play loud and soft, and it sounds like a trombone. The Kanstul is supposed to be a very light bass, and weighs 2.31 kg by my scales. The Olds/King is 2.24 kg, and the Conn 1.69 kg (the Olds/King slide is 25g heavier than the Kanstul - both TIS).
I just feel that the smaller horn is far more versatile in range and sound. I wish something were available commercially without needing to hack one together yourself.
