GR Bass ONE800
Amp Head for Electric Bass

Latest User Reviews
Pure winner!!
Great sounding amp with more features then most others. The pure switch is a game changer, love it.
All you ever wished
Small and convenient, but big in what it offers. Noise-free activation; sensitive and quiet potentiometers. Maybe the LED lights are too strong, but that’s a personal opinion. Compared to the more GK heads I have, it’s more than a step ahead of them - worth its price! Combined with their two GR112H-8 speakers, it offers fantastically calibrated sound, both indoors and outdoors. The only problem I had with this kit was the loose rubber feet of the boxes, which was fixed under warranty in a short time. It was only during this time that I really noticed how well the kit works, as I tried the head on several different boxes, from 4x10 ", 1x12" to 1x15 ". I can also say that the GK heads sounded better on their speakers. In short, I recommend !!
Class D with weight!
What an amp. This thing has thump, punch and clarity. I'm using it with a pjb c8 and a c4 cab. Phenomenal heft and just has that sound. My Eich is great, this is better!
Technical Data
- Manufactured by GR Bass
- Released in 2020
- Average price : $872
- Power (RMS): 800 W
- Impedance: 4 Ohm
- Controls: Gain, Low, Mid Low, Mid High, High, Volume DI, Headphones Volume
- Master volume
- 3 Selectable frequencies for mid low: 185, 375, 800 Hz
- 3 Selectable frequencies for mid high: 600, 1200, 1800 Hz
- Deep and Bright Boost switches on each channel
- Pure Sound switch (EQ Bypass)
- Switchable LED/Fan Mode
- Mute switch
- Ground lift, DI pre/post and power switch on the back
- Effects loop: Serial
- Front connectors: Input, aux in, headphones out
- Rear connectors: FX Loop (Send, Return), XLR DI-Out
- Dimensions : 265mm x 220mm x 58mm
- Weight : 2.2kg
- Colour: Black
- Made in Italy
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