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Jupiter 740 Series Bass Trombone

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The Jupiter 740 Series Bass Trombone is a double standard rotor bass trombone offers the advancing player an affordable independent valve system inst...Click To Read More About This Product

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Independent Bass Trombone!

The Jupiter 740 Series Bass Trombone is a double standard rotor bass trombone offers the advancing player an affordable independent valve system instrument. An excellent choice for any player or ensemble.

  • Key: Bb / F / Gb / D
  • Bore: .562-inch
  • Leadpipe: Standard
  • Leadpipe Material: Yellow Brass
  • Bell: 10-inch
  • Bell Material: Yellow or Rose Brass
  • Handslide: Standard
  • Handslide Material: Nickel Silver Outer Slide and Chromed Inner Slide
  • Handslide Crook Material: Nickel Silver
  • F Attachment Wrap: Standard
  • F Attachment Valve: Standard Rotor
  • Valve System: Independent
  • Features: Independent Valve System; Nickel Silver Outer Handslide
  • Case: Wood Frame
  • Mouthpiece: Yes
  • Mouthpiece Shank: Large
  • Finish: Lacquer

Review Snapshot

by PowerReviews

(based on 5 reviews)

Ratings Distribution

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  • 1 Stars



Reviewed by 5 customers

Displaying reviews 1-5

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(2 of 3 customers found this review helpful)


Very Versatile Horn


from Parsons, Tennessee

Site Member

I've had my 740L for little over a year now and it has done me good. I just made 1st chair Blue Band for All-West Tennessee using it at my audition last week. When I first got the horn it was difficult because of all the extra air it requires to play; I had previously played nothing but straight tenor trombones. However, now my tone has developed into a very warm sound and my range has been restored to the high notes I was able to play before switching. Any issues I had originally resulted from my untrained embouchure. The bell is a 10" which is a bit larger than the average bass trombone, but this hasn't been an issue for me. The sound doesn't become lost or too broad. After all, I do like to use it for solos. It has a darling voice even though I bought the yellow lacquer. The foam-wrapped support bar that goes into the crook of your thumb is a god send. It takes so much of the weight off your wrist. The independent rotors work well. Maybe it's because I've had time to grow used to it, but I don't realize any stuffiness when I use the rotors, and they are very responsive. I've used this trombone quite successfully for all of my college auditions, and I recommend it. It's a fine instrument that I don't believe will inhibit one's talent as a musician from being heard in the least. Suffice it to say, I'm satisfied.

(7 of 7 customers found this review helpful)


Good buy


from Lex, KY

Site Member

Its not a top of the line pro instrument, but, you have to think as to what your going to be doing with it and what your budget is. Its not a beginner bass trombone either. Its not a Yamaha top end trombone. If your doubling or just getting on a bass trombone for the first time and want a 2 trigger horn, it fits the needs just fine. Its been fine for any material I've played in ensembles I deal with. I've been impressed with the overall quality of the instrument in general. I've had other jupiter instruments in the past and Jupiter is a good value for the money when your getting something in their middle category (not student line). Using a Bach mouth piece does make the lower registers speak better and easier to play and not as stuffy. Any of the triggers by them self are very open blowing, but both together are not as open. That's true for just about any bass trombone though, you just have to get use to different instruments. It feels similar to other Conn bass trombones I've played with 1 1/2g mouth pieces. Having the thumb support is certainly something that other instruments I've tried out didn't have and that helps a lot for longer playing time.

(7 of 9 customers found this review helpful)


Pretty stuffy . .


from Tallahassee, FL

Site Member

Being a euphonium player and trombone doubler, I bought this bass for financial reasons. Given the right mouthpiece, this horn speaks well in the Bb2 to pedal Bb (except for low C) and the pedals are great down to E. The triggers are a bit more resistant than expected but it does have a nice sound in the upper register as well.

(42 of 47 customers found this review helpful)


Good horn for beginners, doublers or people in lack of money


from Canada

Site Member

Great horn indeed! Fast response, good mechanics, rotors linkage are great. I play with a Yamaha Doug Yeo and I can play from the smoothest trombone passages in my symphonic orchestra to the hardest pedal punches in my college's big band. The red brass bell (JSL-740RL) sounded too direct for me so I got the yellow brass bell one (JSL-740L) the .562 bore is more than standard, but the 10" bell really steps you up to a new level of playing. And THANK GOD, no string triggers anymore! And it got the thing which I don't remember the name to relieve weight on your wrist while holding your horn. Many pro horns don't have this one! This is why I consider this horn no intermediate, but more of a pre-pro model. In fact it's a copy of a pro model (Conn 112H) so... :)

(0 of 31 customers found this review helpful)


Stuffy Stuffy Stuffy


from Mannheim Germany

Site Member

It is nice to have the fourth valve, but the stuffiness isn't really worth it. This would be an alright school horn but professionals should probably stick to the old 20k

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