From the GK website:
A longtime favorite for some of the biggest session artists in the industry, GK's MicroBass remains the standard for high quality compact
bass amplification. With its sturdy welded aluminum chassis, the MicroBass Series III is equally at home on the road or in the studio. Used alone or with the 112MBX extension cabinet, this little powerhouse delivers a surprisingly large and articulate sound.
Mine is in excellent condition, and has served me well as "the easiest part of my upright bass rig to carry"

Lots of good memories with this little guy, that's for sure! Comes with a well-worn padded GK carrying case. $500 shipped in the CONUS, OBO, this is the model with the footswitchable stereo chorus.
Features Include:
* POWER <1% THD: 100W (150W with Extension Cabinet)
* COOLING: Convection
* INPUT SECTION: 1/4" Jack,-14dB Pad and Volume
* VOICING FILTER: Low Cut, Adjustable Contour and High Boost
* EQUALIZER: Active, Two Shelving and Two Semi-Parametric
* OUTPUT: Boost, Master, Stereo Chorus (Adjustable Rate and Depth) and Limiter (Switch, Level and LED)
* DIRECT OUT: XLR Pre/Left, XLR Post/Right and Ground Lift.
* PATCHING: Send, Return, Line Out, Aux In and Head Phone
* SPEAKER OUTPUT: Two 1/4" jacks and Speaker Switch
* WOOFER: 1xGK-Paragon 12LB150-8 Stamped Frame, 12", 100W Low Resonance Suspension
* CONSTRUCTION: 0.1" Aluminum Chassis, 18 Gauge Steel Grill, Heat Sink Top Cover
* WEIGHT: 26 lbs
* DIMENSIONS: 13.5"W x 16"H x 8.5"D
