1670 Bb/F Bass Trombone 2017-06-20T10:23:03+00:00

Model 1670 Bb/F Bass Trombone

The Model 1670 features a single .593″ CR rotor and in-slide tuning. The flowing bell section lends a simple, acoustic elegance and beauty to a sleek and minimalist bass trombone.

The hand slide is very light, with our original tuning mechanism and lightweight sleeves, you won’t notice any extra inertia over other standard weight slides.

The CR rotor has a fully enclosed .593″ bore and a hollow core to improve ease of response in the low range, and evenness between the Bb and F sides. The trigger paddle is fully adjustable, and the F-attachment has a fast pull to E with adjustable stop.

If you enjoy making music with a lighter weight instrument, whether as a soloist or in an ensemble, the 1670 is a versatile bass trombone that is light and nimble, for less stress on your body, and more ease to create the music you want. This is the George Roberts model, played by “Mr. Bass Trombone” himself!

MSRP $4,530 in lacquer finish, $4,840 in silverplate

Key: Bb/F
Bore: .562″ Slide – .593″ F Section
Bell: 9 1/2″ Diameter
Mouthpipe: Interchangeable
Valves: Single .593″ Kanstul CR Valve
Water Keys: Traditional
Finish: Clear Lacquer

  • Hand Hammered One Piece .020″ Bronze Bell
  • .593″ F Section with Full Bore CR Rotor
  • In-Slide Tuning
  • Nickel Silver Hand Slide and End Crook
  • Fast E Pull
  • Open Wrap
  • Three Interchangeable Mouthpipes – GR, 62 and B
  • Additional Mouthpipes Available
  • 3 3/4″ Wide Hand Slide

Part #: 40500
Model: Kanstul GR Bass Trombone


Part #: 50809
Model: Pro Tec Bass Trombone Case


Kanstul Factory Warranty

George Roberts

George Roberts

John Capon

John Capon

Richard Bartkus

I recently acquired a 1670 model bass trombone. I love it. I am 60 years old and found the dual bore double trigger bass I’d been playing was just getting too tiring. The Kanstul is just easier on my body.

James Sprenger