GR Bass ONE 800 Amp Head

(3 customer reviews)


800 Watts Powerhouse @ 1.6 Kg / On Board Tuner / Fully featured to suit home and live use.

Optional gig bag

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 ONE 800, is a very powerful, feature laden & lightweight amplifier designed to give you the greatest value on the market. 


GRBass ONE800 Lightweight Bass Guitar Amplifier

  • POWER: 800W RMS 4 ohm, 400W RMS 8 ohm,
  • DIMENSIONS: 25.4cm W x 20cm D x 5cm H / 10″ W x 8″ D x 2″ H
  • WEIGHT: 1.6 kg / 3.5 Lbs.
  • COLOURS: black
    – Tuner / Vu-Meter
    – Input
    – Aux In
    – Gain
    – Deep filter
    – Low
    – mid Low
    – mid High
    – High
    – Bright filter
    – 3 freq for mid Low
    – 3 freq for mid High
    – Pure Sound
    – Volume DI (antibump)
    – Headphone master
    – Headphone output
    – Master
    – Mute
    – Input 230-115v (auto selectable)
    – 9 Volt 300mA
    – Send/Return
    – Pre/Post DI
    – GND lift
    – DI Output
    – Speakon Out x2
    – Fan (Studio/Live mode)

Additional information

Weight 6 kg

3 reviews for GR Bass ONE 800 Amp Head

  1. Steve Beahan

    I love this Amp, super punchy, amazing build and some really neat features packed in. Sounds incredible plugged into a Jazz style Bass – really brings out the best qualities…. I’ve owned quite a few lightweight heads in my time and this is by far the best, very easy to dial in a tone and the headroom is massive. My fav features would be the ‘deep’ and ‘bright’ buttons. Great for quickly adding boost and clarity!

  2. Steve B

    Loud & punchy! Tiny package of grunt. After tweaking my sound & one day later, I’ve made the right choice. Bought sight unseen but very happy at this point. I play Jazz Basses & this amp loves them.

  3. Lee H.

    Purchased this amp and absolutely fell in love with it. It is a tone monster and it produces exactly what you put in it. There are a few minor things that I would change but that doesn’t hinder me from loving it. Small and powerful is all I can say and I love it so much I’ve purchased a second one as a back up !!!!! GR Bass got it right with this amp !!

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