Have a really nice condition Markbass F-500. Works perfectly and is in great condition. Comes with rack ears and original box and packing materials. Has a few minor scratches on the top and a tiny bit of paint worn off one of the front knob indicators. Sounds and works like it should.
Sounds really similar to my Demeter Amp so looking for something different.
$525 Shipped CONUS or will consider trade's for:
Orange Terror 500 or 1000
Aguilar SC or TH 500
GK MB 500
Maybe a lighter rackmount head as well.