GR Bass DUAL 800 Amp Head


800W @ 4 ohms & 2.67 ohms @ 2.95 Kg / On Board Tuner /

Fully featured to suit home and live use.

Optional gig bag

Optional DUAL Pedal Control Board

Owners Manual


Introducing GRBass – ‘Italian Design, Pure Sound’. Wonderfully built, detailed sonic audio design & an Italian aesthetic. Terrific value with a detailed and musical sound.

The GR Bass product line includes amplifiers, speaker cabinets and combo amplifiers. These powerful, lightweight amps & speakers embody the stylish Italian design and aesthetic. 

The GR Bass DUAL 800 amp head was created for the modern and demanding bass player with flexibility never seen before on a bass amplifier.

The DUAL 800 amplifier feature two separate channels, one of which is completed by a professional overdrive for a range of slight saturation to massive distortion. Each channel is provided with a 4 band EQ with 6 selectable frequencies on the mid controls, plus deep and bright filters. The GR Bass DUAL 1400 offers the possibility to connect two instruments (two basses or one bass and keyboard, etc.) but also the option of using one instrument with the possibility of switching between two equalization settings or combining them.

The system is completed by two D.I.s on the back to send two separate signals even when using only one instrument so you can mix a clean and a distorted sound in your cabinet, but send the two signals separately to the sound engineer. When using two instruments, each instrument (and channel) can be sent to the house independently or mixed. The GR Bass DUAL is completed by an optional, dedicated pedal board (with Cat-5 connection) that allows you to comfortably manage all the functions as an alternative to the controls on the head.

Additional features include not only the robust Overdrive circuit (Low Filter, Drive, Blend, Drive Mod), but Dual SpeakOn combi-jacks, Onboard Tuner/VU-Meter, Line Output Level controls, Headphone Output w/ Level control, Effects Send/Return, 9-volt supply for pedals and a USB charger port. The DUAL amp is 31 x 26 x 9 cm, with a weight of 2.95 Kg.


GRBass DUAL 800 Lightweight Bass Guitar Amplifier

POWER: 800W @ 4 ohms & 2.67 ohms

DIMENSIONS: 31cm x 26cm x 9 cm / 12.25″ x 10.25″ x 3.5″

WEIGHT: 2.95 Kg / 6.5 Lbs

COLORS: black, (custom colors by special order)


  • Tuner / Vu-Meter
  • Input 1
  • Input 2
  • Aux In
  • Gain (Ch1, Ch2)
  • Deep filter (Ch1, Ch2)
  • Low (Ch1, Ch2)
  • mid Low (Ch1, Ch2)
  • mid High (Ch1, Ch2)
  • High (Ch1, Ch2)
  • Bright filter (Ch1, Ch2)
  • 3 freq for mid Low (Ch1, Ch2)
  • 3 freq for mid High (Ch1, Ch2)
  • Pure Sound
  • Line Out 1
  • Line Out 2
  • Headphone master
  • Headphone output
  • Mute
  • Fan (Studio/Live mode)
  • Master (Ch1, Ch2)


  • Low filter
  • Drive
  • Blend
  • Drive mod


  • Input 230-115v (auto selectable)
  • 9 Volt 300mA
  • Pedal Board
  • Send/Return
  • Pre/Post DI
  • GND lift
  • Line Output Dual/Mix
  • 2 Speakon

Additional information

Weight 6 kg


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