On hold for Nighttrain!
Bought it as a backup head and literally never used it. Fired it up once when I got it for all of a few minutes. Never been racked or even out of my house. I am the original owner and I still have the original receipt, boxes, manual, warranty cards, and even the footswitch, etc ,etc. Cool head, but not quite my thing and it's just not getting used... Let me know what you have to trade (or if you want to make me an offer, you can do that too).
GBE600
The GBE 600
Introducing the GBE 600 rack-mount bass amp with over 600 watts of huge, articulate output. This complete new design enhances many of the popular features from GB's ML 200 and GBE 500H amp designs and takes them to the next level of versatility, tone and power. Most of the features on the GBE 600 are foot-switchable, which allows the performer total control of his sound. Two pre-amps are on-board; one F.E.T. and one 12AX7 Tube which can be switched or mixed together.
Description:
Don't compromise your bass tone - the GBE600 is a versatile, high powered 625 Watt rack-mount 2-space amp that mixes tube warmth with solid state performance. Features a switchable pre-amp section (1 tube, 1 solid state) that can be blended for a wide variety of tones and colors along with a powerful EQ system for even more control.
Impedance 8, 4 and 2 ohms
Output 275 Watts @ 8 ohms, 425 Watts @ 4 ohms and 625 Watts @ 2 ohms.
GBE 600 FEATURES
Active/Passive Input
Signal Mute Switch
Tuner Out
F.E.T./12AX7 Tube Pre-amps
Tube Gain and Volume controls
Channel Mix switch
Input Status LED’s
Signal Shape Circuit with L.F. Extend, Mid Scoop, H.F. Extend, all adjustable (Min.-Max.) and foot-switchable (optional 4 button foot-switch available)
Active 5 band Equalization Section with two shelving and three peaking networks
Comprehensive Amplifier Status LED’s
Master Volume Control
Unique “Soft-Limit” Circuit
XLR Direct Out with Pre/Post Sw.; Ground-Lift Sw.; adjustable Level Control
SpeakonTM and 1/4” Speaker Outputs (2 each)
Dual Voltage 115/230V Toroid Transformer
FT: Genz Benz GBE600 New (bought as backup & never used it) 
