Bach BTB411 Tenor Trombone with F-Attachment beam Insertion Loss: ≤1

Insertion Loss: ≤1

The Master Volume allows you to dial in the right amount of power tube thickness and overall loudness

The MANTRA combines both a shallow-step and roll-over baffle and adds the Theo Wanne proprietary small “shark-gill” chamber

Line Array Speaker: 67 x 582 x 86 mm

Octave Shift: -3 to 0 to +3 Octaves

Bach BTB411 Tenor Trombone with F-Attachment beam Insertion Loss: ≤1Embrace Excellence with Precision in Every Note The Bach BTB411 Tenor Trombone with F Attachment The Bach BTB411 trombone is an intermediate level instrument combining unique specifications and acoustic guidelines designed to develop and enhance the demanding skillsets required of today's young players. Vincent Bach fused his dual talent as an accomplished musician and meticulous engineer to create brass instruments of unparalleled tonal quality.