dimensions of big detachable bell tubas
Posted: Tue Dec 02, 2025 7:17 pm
As I was desperately scouring the internet marketplaces searching for a chest/case for my big detachable bell tubas so I could take one to tuba Xmas, as well as looking for bags to carry bells in, I thought it might be nice to have the measurements of the bodies/recording bells available to anyone who needs the dimensions since this was very time consuming. This is especially useful for making your own cases, packing them, getting boxes, or finding steamer trunks for storage. I also did some fun side by side comparisons. I don't stand by the accuracy of these, as it was done with a crude approximation and a measuring tape, but it should be pretty close and/or helpful to somebody, somewhere, someday.
Conn 20J/24J/26J/36J Deluxe Recording Tuba
Body is 31 inches tall, body is 19.5 inches wide at lower tenons, body is 20.25 inches widest point near lead pipe, 18.5 inch circumference above the bell tenon, 7.25 inch bell opening diameter, 22lbs with 4 valves, 24 inch standard bell, 19.25 inch bell width
Holton 105/350 Mammoth/Artist Recording Bell Tuba
Body is 33.5 inches tall, body is 19 inches wide at lower bell tenons, 21.5 inches widest point near lead pipe, 19 inch circumference above the bell tenon, 8.25 inch bell opening diameter, 22lb body with 3 valves, 23.75 standard bell size, 15.25 inch bell width
Martin Mammoth Recording Bell Tuba
Body is 27.5 inches tall, body is 18 inches wide at the lower tenons, 20 inches at its widest point of the lead pipe, 19 inch circumference above the bell tenon, 7.75 inch bell opening diameter, 23.5 lb body with four valves, 20.25 inch bell width, 24 inch standard bell size
York Model 726 Deluxe Monster Recording Bass
Body is 32 inches tall, body is 19 inches wide at the lower tenons, body is 22 inches widest point , 18.75 inch circumference above bell tenon, 7.75 inch bell opening diameter, 19.5 lbs with 3 valves, 26 inch bell, 16.25 inch bell width
Fun comparisons
Conn vs. Holton
Holton vs. Martin
York vs. Conn
Conn 20J/24J/26J/36J Deluxe Recording Tuba
Body is 31 inches tall, body is 19.5 inches wide at lower tenons, body is 20.25 inches widest point near lead pipe, 18.5 inch circumference above the bell tenon, 7.25 inch bell opening diameter, 22lbs with 4 valves, 24 inch standard bell, 19.25 inch bell width
Holton 105/350 Mammoth/Artist Recording Bell Tuba
Body is 33.5 inches tall, body is 19 inches wide at lower bell tenons, 21.5 inches widest point near lead pipe, 19 inch circumference above the bell tenon, 8.25 inch bell opening diameter, 22lb body with 3 valves, 23.75 standard bell size, 15.25 inch bell width
Martin Mammoth Recording Bell Tuba
Body is 27.5 inches tall, body is 18 inches wide at the lower tenons, 20 inches at its widest point of the lead pipe, 19 inch circumference above the bell tenon, 7.75 inch bell opening diameter, 23.5 lb body with four valves, 20.25 inch bell width, 24 inch standard bell size
York Model 726 Deluxe Monster Recording Bass
Body is 32 inches tall, body is 19 inches wide at the lower tenons, body is 22 inches widest point , 18.75 inch circumference above bell tenon, 7.75 inch bell opening diameter, 19.5 lbs with 3 valves, 26 inch bell, 16.25 inch bell width
Fun comparisons
Conn vs. Holton
Holton vs. Martin
York vs. Conn