conn 20J
- andrew the tuba player
- 3 valves

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conn 20J
i was wondering...what are some opinions of the conn 20J? I saved one from our bands storage room and played it in church tonight. I love the way that it blows open and the short action valves rank highly one my list. thats what i think. now lets here what you think 
1969 Mirafone 186 BBb
1965 Conn 20J
Olds fiberglass Sousaphone Project- for sale
Epiphone Thunderbird Bass Guitar
Cremona 3/4 upright bass
1965 Conn 20J
Olds fiberglass Sousaphone Project- for sale
Epiphone Thunderbird Bass Guitar
Cremona 3/4 upright bass
- The Big Ben
- 6 valves

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AndyL
- bugler

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Conn 20J Opinions?
Other than directing your attention to the 700+ TubeNet archive posts regarding the 20J:
Intonation on mine is best with 1 tuning bit, plays an in-tune "F" at the bottom of the staff, and sounds much better in a large room than in a small one!

Intonation on mine is best with 1 tuning bit, plays an in-tune "F" at the bottom of the staff, and sounds much better in a large room than in a small one!
- John Caves
- bugler

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ParLawGod
- pro musician

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I like mine - you just have to be VERY careful if playing in a small group. You can easily cover up a small group if you're not careful. I use mine for playing in the city band (outside) so that's never a problem. I just hate the "F" (below the staff, bass clef) on my horn - it is incredibly flat in pitch and irritating). I play mostly trombone/euphonium so it is a great quality, low cost horn for me (since I can't afford a Miraphone 186 or anything like that).
But yeah, do a search and you'll come up with lots of great stuff.
But yeah, do a search and you'll come up with lots of great stuff.
- Steve Marcus
- pro musician

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I always regretted selling my 24J/25J; I needed the proceeds to help pay for my Nirschl CC.
But I recently acquired a banged up 20J in excellent playing condition. What fun that big beast is! Of course, its practical applications are limited. I play it with dynamic discretion (see the advice in the post above) in my Dixieland band. It blows so easily that it makes the job even more of a pleasure.
If memory of my 24J/25J serves well, the privileged notes on the 3-valve 20J speak as well or better than the same notes with 4-valve fingering on the 24J/25J! Even the timbre and intonation of these privileged notes can be tamed to create a smooth tonal transition from the low E (lowest "true" note, albeit sharp is a knife) chromatically down to the pedal BBb.
But I recently acquired a banged up 20J in excellent playing condition. What fun that big beast is! Of course, its practical applications are limited. I play it with dynamic discretion (see the advice in the post above) in my Dixieland band. It blows so easily that it makes the job even more of a pleasure.
If memory of my 24J/25J serves well, the privileged notes on the 3-valve 20J speak as well or better than the same notes with 4-valve fingering on the 24J/25J! Even the timbre and intonation of these privileged notes can be tamed to create a smooth tonal transition from the low E (lowest "true" note, albeit sharp is a knife) chromatically down to the pedal BBb.
- Lew
- 5 valves

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Re: Conn 20J Opinions?
These horns were sold with a single tuning bit, so it makes sense that they would play better that way. The tuning bit also allows one to adjust the leadpipe postion to better fit different individuals.AndyL wrote:Other than directing your attention to the 700+ TubeNet archive posts regarding the 20J:
Intonation on mine is best with 1 tuning bit, plays an in-tune "F" at the bottom of the staff, and sounds much better in a large room than in a small one!
Most of the 20J's that I have owned and played have had challenging intonation on the third partial (the F just below the staff) even with a single tuning bit. My 22J (3 valve side action version) had the best intonation characteristics. All of them have a big "tubby" tuba sound that I like for a large band. The main problem is that I found them to play only at about mf and above. They are fun horns, but the intonation and the size and weight made me decide not to keep them in the stable. Today when I need a large horn I use a King 1291 (4 rotary valve BBb). It has better intonation, response, and ergonomics for me. Of course the Conn's are much more plentiful, so if you can pick one up for around $500 in playing condition it would be a reasonable horn for a large group.
- The Big Ben
- 6 valves

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tofu
- 5 valves

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- Jeffrey Hicks
- 3 valves

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- The Big Ben
- 6 valves

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I think it helps to be 18 to 23 years old and, like most college kids, a little crazy. And I mean that in a good way.tofu wrote:You all must have one heck of chiropractor to march with those beasts. It must be tough on the back.George wrote:Whoa, we don't quite have 75. We have 28 20-Js and 2 24-Js, but yes we're quite happy with them.
- GC
- 5 valves

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With a proper strap, they're fairly well balanced and not as heavy as you might think. JSU used to carry them with drum straps long ago. I wonder if they still do.
JP/Sterling 377 compensating Eb; Warburton "The Grail" T.G.4, RM-9 7.8, Yamaha 66D4; for sale > 1914 Conn Monster Eb (my avatar), ca. 1905 Fillmore Bros 1/4-size Eb, Bach 42B trombone
- GC
- 5 valves

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- trseaman
- 4 valves

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- The Big Ben
- 6 valves

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You should look at the pictures of these guys...trseaman wrote:http://20j.marchingsoutherners.org/home.htm
Some of the women are kinda cute but most of the guys look like mutants... Since there are no members who have marched since before 2004, does that mean they actually graduate?
I don't see anyone named 'George" either real or nickname... Why are you hiding, my friend?
- Jack Tilbury
- pro musician

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- GC
- 5 valves

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I like the 20J and Southerners web sites, but. . .
a 20J weighs 28 pounds, not 52, and a 24J weighs 31, not 60. They're heavy, but not THAT heavy.
a 20J weighs 28 pounds, not 52, and a 24J weighs 31, not 60. They're heavy, but not THAT heavy.
JP/Sterling 377 compensating Eb; Warburton "The Grail" T.G.4, RM-9 7.8, Yamaha 66D4; for sale > 1914 Conn Monster Eb (my avatar), ca. 1905 Fillmore Bros 1/4-size Eb, Bach 42B trombone
