GR Bass ONE1400 1400-Watt Bass Amp Head

Power Multiple Cabinets With One Bass Amp Head

ONE1400 lightweight bass amp head has two separate 700-watt speaker outputs. With that, you can power two 4-ohm or four 8-ohm cabinets, and set the volume for each speaker output independently using the front panel output level controls.

Tonal Flexibility For The Stage & Recording Sessions

ONE1400 is more than just a bass amp head. It's a great preamp for home studio or pro studio recording. Dial in your sound just how you want it with the 4-band EQ, 6 selectable Mid frequencies, along with Deep and Bright filters.

The onboard EQ can be bypassed for sending your bass sound direct by engaging the front panel PURE switch. PURE mode routes the signal direct to the outputs.

Headphone Amp

Jam along with songs or practice anytime without disrupting your family or neighbours. ONE1400 bass amp head has front panel connections for your bass, your headphones, and smartphone/audio source.

GR Bass ONE1400 1400-Watt Bass Amp Head - Specifications

Power Output:: 2-channels.  700 watts RMS @ 4 ohm per channel. 1400-watts total
1/4″ Jack::  Instrument input
1/8″ Jack: Audio input
Gain: Sets instrument and DI level
Deep button: Boost +5 dB @ 50 Hz
Bass knob: Boost or cut  ± 13 dB max @ 50 Hz
Mid-Low switch: Assigns the frequency of the Mid- Low knob
185 Hz, Q = 1.2, switch pos 1
375 Hz, Q = 1.2, switch pos 2
800 Hz, Q = 1.2, switch pos 3
Mid-Low knob: Boosts or cuts the assigned Mid-Low frequency
± 12 max dB (peaking control)
Mid-High knob: Boosts or cuts the assigned Mid-High frequency
± 12 max dB (peaking control)
Mid-High switch: Assigns the frequency of the Mid- Low knob
600 Hz, Q = 1.2, switch pos 1
1.2k Hz, Q = 1.2, switch pos 2
1.8k Hz, Q = 1.2, switch pos 3
High knob: Boost or cut  ± 13 dB max @ 7.6k Hz
Bright button: Boost +6 dB @ 9.6k Hz
Pure Switch: EQ/Preamp bypass
Master Volume Channel 1: Speaker output level
Master Volume Channel 2: Speaker output level
Speaker Button: Mutes speaker output
Speaker Output: 2 x Speakon 1/4" combo
XLR Output: PA or DAW recording interface
Ground Lift Button: Lifts XLR output ground
Pre/Post Button: Assigns EQ or EQ-bypass to the DI output
Fan Switch: Sets fan in studio quiet mode or live mode
FX Loop: 1/4" Send and Return jacks
9VDC Power Port: 300mA Effect pedal power supply
AC Input: 115-230V (auto selectable)
Dimensions: 12.25″ x 8″ x 2″
Weight: 6.25 lbs.
Finish: Black
Origin: Made in Italy
Carry Bag: GR Bass Bag-One (included)

Download GR Bass ONE Series Amp Manual Here