Just got this back from the repair shop to fix a loose wire and give it a thorough going-over. Lovely piece of kit from the 1980s. Pretty popular with guitarists, I'm told, though it certainly works very well on bass. Missing the silver caps off of some of the knobs. As far as I can tell, this has no effect on its functionality
Note: The ultra-cool Intersound IVP also seen in the photo isn't for sale.