A Big Bass generates big time enthusiasm, with 9 low notes beginning 2 octaves below middle C. Casters provide classroom portability. Buzzers are standard on all my basses*. $1600, add $100 for optional F#/Bb bars.
* I utilize a simple rubber band system allowing you to "dial in" the buzziness, from in-your-face maximum buzz-tone, to no buzz at all.
Here is a wheel-less bass with 8" wide bars and 8" tubes on the lowest notes, plus my usual 6" tubes on the upper notes. Price on these will vary, depending on what dimensions of the components you opt for.