The Thumb Bolt On I have holds it sustain for days. The active/passive tone controls go from deep thump to wooly growl.
The Thumb is a great counterpart to my MIA Jazz bass and Birdsong Cortobass - My Holy Trinity.
The only caveat is that it has an odd neck that fits perfectly in my hand but is not for everyone.
The Thumb is a great counterpart to my MIA Jazz bass and Birdsong Cortobass - My Holy Trinity.
The only caveat is that it has an odd neck that fits perfectly in my hand but is not for everyone.


