Gallien-Krueger Fusion 800S 800W Ultra Light Hybrid Bass Amp Head

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SKU: FusionS800

Last 1 in stock

Ultra-light, Tube-powered Bass Amp Head with Monster Tone.

The Gallien-Kreuger Fusion 800S is a 800-watt compact, ultra-light bass amp head with a Class D power amp and an all-tube preamp with tube-powered overdrive. Vintage-voiced with modern punch and clarity, the Fusion 800S, can roll with any genre, churning out crisp and articulate clean tones, big-bottom low end, and gritty distortion that'll knock the house down. With its small form factor, ultra-light construction, and robust interconnection system, it's built for the touring bassist. Additionally, a fully stacked feature set, including illuminated knobs, effects loop, and balanced DI, makes the Fusion 800S one of the most versatile heads of its size.


  • 800W compact, ultra-light bass amp head
  • Class D power amp
  • Analog tube preamp
  • GK's classic 4-band active EQ
  • Foot-switchable tube overdrive
  • Bump, contour, and presence voicing
  • Balanced XLR output with pre and post EQ
  • Unbalanced 1/4-inch FX loop send and return
  • Illuminated control knobs
  • Aux input and headphones output
  • 2, 2.7, 4 and 8ohm load capacity
  • 11.5-inch width x 11-inch depth x 2-3/8-inch height
  • Made in USA


  • Type: Hybrid
  • Number of Channels: Single Channel
  • Total Power: 800W @ 4 ohms, 400W @ 8 ohms
  • EQ: 4-band Active EQ, Bump/Contour/Presence switches
  • Preamp Tubes: 3 x 12AX7
  • Inputs: 1 x 1/4", 1 x 1/8" (aux)
  • Outputs: 2 x NL2 SpeakON, 1 x XLR (direct out), 1 x 1/4" (tuner)
  • Headphones: 1 x 1/8"
  • Effects Loop: Yes
  • Footswitch I/O: 1 x 1/4" (Overdrive)
  • Footswitch Included: Yes, 1-button
  • Cooling System: 2 x Internal Fans, Side Air Vent
  • Power Source: Standard IEC AC cable
  • Height: 2.37"
  • Width: 11.5"
  • Depth: 11"
  • Weight: 5 lbs.