GRBass One 800

The GRBass One 800 is a top-of-the-line amplifier with a pure sound that brings out the clarity of your bass tone. It features a built-in tuner and speaker mute. You can adjust the gain using the gain knob, and by monitoring the VU meter while playing, you can ensure your sound is free of unwanted distortion or clipping.

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At GRBass, the creators are also musicians, which is why not only is the sound excellent, but the amp is also very user-friendly. You can also play with headphones and other external devices so you can play along with different tracks. Want others to hear it too? Then you can use the output volume controls to adjust both channels, allowing you to easily switch between them when the music calls for it.

For those who play multiple genres, the 4-band equalizer is perfect. It includes high and low frequencies, but—uniquely—also mid-low and mid-high, each with 3 frequencies. You can connect the DI out to the stage mixer, but you can also run standalone effects through the mono effects loop using pedals.

• GRBass Bass Amplifier Head
• Model: ONE 800
• Power: 800 watts (4 ohms), 2x 400 watts (8 ohms)
• Color: black with chrome front panel
• Built-in tuner / VU meter
• Inputs: 6.35 mm mono jack input, 6.35 mm mono jack return, 3.5 mm jack aux in
• Outputs: 2x 6.35 mm mono Speakon speaker outputs, 6.35 mm mono jack send, XLR DI output, 3.5 mm jack headphone output, 9-volt adapter output, 300 mA
• Controls: gain, low, mid-low, mid-high, high, DI, headphone volume, master ch1, and master ch2
• Switches: on/off, deep, pure, mid-low 3-frequency, mid-high 3-frequency, bright, mute, GND lift, and pre/post DI
• Dimensions: 25.5 x 20 x 5 cm
• Weight: 2.2 kg
• Power supply: 230–115 V, automatically selectable