Vintage 1980's Westone Thunder IA Passive/Active Bass 

Made in Matsumoku Japan
Very well made bass built with high quality woods and parts.
It has a big Pbass tone to it.
The mini toggle switch is Active/Passive selector switch and in the middle position it casts as a kill switch. When in passive mode the active EQ knob (bottom one) is bypassed and works as standard Vol/Tone configurtation. 
The Volume knob is a push/pull and allows you to select from Series/Parallel mode. 
There is some wear, marks etc, but structuraly it's solid.

It will be well packed for shipping. International shipping available.
Thank you!