Seymour Duncan SH-4 JB Jeff Beck Model Humbucker Tuba & Sousaphone Mouthpieces 5W and MIDI switching and

5W and MIDI switching and a series effects loop make this the ultimate pro's combo

Vacuum tube triode signal path

You want flexibility

The added cost made them markedly more expensive at the time than the Neumann GmbH and AKG Acoustics GmbH products

004% (measured with 0dBu input and 20Hz/22kHz bandpass filter)

Seymour Duncan SH-4 JB Jeff Beck Model Humbucker Tuba & Sousaphone Mouthpieces 5W and MIDI switching andThe Seymour Duncan SH 4 JB Humbucker uses a completely balanced coil configuration to produce great harmonics and a high output with just the right blend of sustain and distortion. With the Seymour Duncan Humbucker you get the best of both worlds: from sweet warm tones to raw rock and roll.