WORKING CONDITION: Excellent - All features and controls are working beautifully. The album-like tone of the amp is immediate and like most Dumble amps, does not require dialing it in. You plug in and you are homeward bound for blissful overdrive and sustain that sounds aged and soulful. It sounds absolutely incredible. In all, everything is fully operational and in excellent working condition. 

PHYSICAL CONDITION: Very Good - There are some minor abrasions around the preamp and control section. The grill cloth on the lower cabinet is frayed and has a few tears in it. We left the tape markings on the preamp from the previous owner. The tolex around the Odyssey is starting to peel as well. Handwritten notes can be found on the back of the Odyssey as well. 

All components, save for the custom footswitch, are all original to master Dumble's handiwork, and no modifications have been made outside of Dumble. The tone section of the Manzamp is "Gooped" in blue silicone but the Odyssey power amp is not. Note that the speaker cabinets are intentionally uncovered without any tolex or treatment. They are just natural plywood. One screw each is missing from the back panel of the 2x12 cabinets. Overall, everything is in great shape and of good solid integrity. Built to last! 


BRAND: Dumble 

MODEL: Manzamp/ Odyssey 

PRODUCT DESCRIPTION: This listing is for an extremely rare Dumble Manzamp Tube Preamp powered by a Dumble Odyssey 200W Concert Tube Power Amplifer w/ Two Dumble-made 2x12 Speaker cabinets featuring vintage HiWatt/Fane and Vox Blue Alnico speakers.

The Power amp and preamp were built for and owned by legendary guitarist, Eric Johnson. To what capacity and in what arrangement and configuration Eric used these amps is not exactly known but Guitar Player magazine issued a diagram of how his rig configuration was in a 1996 issue. (See photo)

Note that the Two 2x12 Cabinets were not owned or used by Eric and were later added to the rig by the succeeding owner.

To hear an extended sampling of this amp, please see the wonderful video done by our friends Mason Marongella and Gabriel Bergman of Vertex Effects. Linked in our photos


  • Serial #0004
  • Finish/Color: Black 
  • Watts: 200
  • Ohms: 2.7, 8, 16
  • Tube Config: 2x Ruby 6550CR, 2x ECC83, General Electric 5751 
  • Speaker Size: 12"
  • Speaker Type: 2x Vox Alnico Blue, Hiwatt Heavy Duty 
  • Effects: Bright, Drive, Dirty, Clean, Treble, Middle, Bass  
  • The tone control knob on the back of the Power Amp feature "Slut, Soft, Rock" and make very distinctive changes in the tone. 

Odyssey Head: 19” x 9.25” x 10.25”  30.25 lbs 

 Manzamp: 20.25” x 8.5” x 14.5”  21.80 lbs 

 Cab 1: 27.5” x 15” x 13” 36 lbs 

 Cab 2: 27.5” x 15” x 13” 46 lbs


  • Custom footswitch (Not an original Dumble build)
  • 2x 1/4" TS Cables 

SHIPPING: We will arrange for the amp to be delivered anywhere in the US 48 states by private "White Glove" courier. International shipping is available also, please inquire. 

TRADES: We are open to accepting gear as trade credit toward the purchase of this amp. Please message us and we'll be glad to discuss. 

Listed10 months ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
  • Manzamp Odyssey

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Techno Empire

North Hollywood, CA, United States
Joined Reverb:2014

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