Great concert tuba for an intermediate price. This three piston front action tuba has a great resonance and is capable of great projection and dynamic range. A great concert tuba at an intermediate price, the 5J is a 4 valve instrument that has a great resonance and is capable of great projection and dynamic range. Nickel plated pistons provide smooth, quick action and unmatched durability. Available without case as model 5J. Available in silver-plate finish as model 5JSPW.