GSS 1000W Sumo guitar & bass power amp

(Code: A0023)
Shopping Satisfaction
499.90 €
(-8.00%) 459.90 €
In Stock
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A unique size vs. power ratio.


  1. Very high quality electronics based on carefully selected components.

    Black steel and aluminium (front and back panels) enclosure. Laser printed front and back panels.

    Aluminium transport case included.

    This product can be modified upon request to work over 120V supply:
    Please add "Please ship 120V version" in the comment section while entering your order online and please allow 48 hours prior to shipment for us to modify your purchased product accordingly.
    FCC test reports are currently not available. All shipments to the US are under sole reponsibility of the buyer.


    All products shipping to the UK ship with a UK 3 prong power cord.
    All products shipping to North America ship with a US power cord.


  2. Inputs/outputs and controls: 1/4" (6,35mm) input jack connector on the front panel. Neutrik Speakon loudspeaker output connector on the back panel. One on/off power switch. Massive pure aluminium volume control.


  3. Weight: 4.4 Lbs (2 Kg)

    Dimensions: 5.2 x 3.2 x 10 inches / 13 x 8 x 26 centimeters (Width x Height x Depth)


  4. Power: 1000 Watt over 4 Ohms; 500 Watt over 8 Ohm; 250 Watt over 16 Ohm.

    THD (at full power): < 0,1 %

    Input impedance: 10 K Ohm

    Power voltage: 180-264 Volt ac

    Frequency response (-1dB): 20-20000 Hz



Customer reviews
Shopping Satisfaction
 5/5
Very satisfied, powerful amp in a cool package.
Hans P.
Shopping Satisfaction
 5/5
The Sumo 1000 was ordered to create a flexible and lightweight rig paired to a Mesa preamp pedal. After a gig and two rehearsals with it I am really happy at how powerful the Sumo is and how closely my light rig matches my Mesa Venture 600 Mosfet amp. Didier you have created a truly great piece of kit at an astonishingly musician friendly price point. Kudos to you sir!
Harry B.
Many thanks ! Will do my best to keep releasing great sounding products at musician friendly prices on regular basis...Didier.
www.guitarsoundsystems.com