Gr Bass At Cube 800 BLK
Estimated Shipping Widget will be displayed here!
- This item is covered for 3 years
Couldn't load pickup availability
Information
Information
Manufacturer Information
Gr Bass
https://www.grbass.com
info@grbass.com
------------------------
Safety manager:
IMS Distribution
Email: contact@ims-distribution.com
Address:
Historical Context and Positioning in the Range
The AT Cube 800 fits the concept of a modern bass combo: offering maximum power and features in a minimal footprint, without sacrificing precise and mix-friendly sound reproduction. Within the AT Cube family, the 800 version clearly targets bassists who want a single amp capable of handling demanding situations while remaining easy to transport daily.
Who This Amp Is For
This combo is aimed at the intermediate to professional bassist looking for a single solution to rehearse, record, and perform live. Its power reserve and DI make it a relevant choice whenever you need to feed the front of house, while the auxiliary input and headphone output facilitate home practice. Style-wise, it excels in genres requiring definition and control (pop, funk, gospel, modern metal, rock), while maintaining cleanliness on rounder, more traditional tones thanks to the EQ and filters.
Features and Innovations
The GR Bass AT Cube 800 offers a comprehensive, stage-oriented control section: Gain, Deep and Bright filters, 4-band EQ (Low, Mid Low, Mid High, High ) with 3 selectable frequencies for Mid Low and Mid High, plus a Pure Sound mode for a more direct signal approach. The DI management is designed to avoid surprises: pre/post selection, GND lift, and DI Volume (antibump) to limit level jumps during adjustments. Add to that a Send/Return effects loop, a headphone output with dedicated master, a mute function, and a fan switchable between Studio/Live modes to balance silence and cooling.
Sound Character
With its 1x12 bass combo format and horn tweeter, the AT Cube 800 aims for a fast and clear reproduction: sharp attacks, well-controlled low end, and enough brightness to highlight harmonics, slap, or pick sounds. The Deep filter helps widen the low end for bigger grooves, while the Bright adds presence when you need to cut through a dense mix. The parametric mids (via the 3 frequencies on Mid Low and Mid High) are a real asset for precisely placing the bass: scoop to create space, or boost to gain projection. The Pure Sound mode allows a return to a more "straight" and immediate sound, ideal if you shape your tone mainly with your right hand, the bass itself, or pedals.
Technical specifications
| Category | Bass combo | EQ | 4 channels |
| Effects loop | Yes | Headphone output | Yes |
| Cabinet impedance (Ω) | 8 Ω | Color | Black |
| Category | Amplifier | Finishing | Black tolex |
| Speaker diameter | 12" | Power output | 800 W |
| Number of speakers | 1 | ||
| Power | 800 W RMS (AES standard) | Bass reflex | rear ported |
| Speaker | 1 x 12" 8 ohm custom Jensen/Sica woofer | Sensitivity | 98 dB SPL |
| Tweeter | 1" horn driver | Device dimensions | W40 x D36.5 x H44.5 cm |
| Frequency response | 38 Hz to 18 kHz | AT Cube 800 | 9.6 kg |
Questions frequently asked
Is the GR Bass AT Cube 800 BLK powerful enough for the stage?
Its rated power of 800 W and pre/post DI output allow for on-stage use with front-of-house feed. The combo features a 12-inch Jensen/Sica 8 Ω speaker, complemented by a 1-inch horn tweeter.
What connectivity is available for recording and headphone playing?
A DI output with antibump volume control, pre/post selection, and ground lift is built-in. Also provided are a headphone output with dedicated master, an auxiliary input, and a Send/Return effects loop.
How to adjust the mid frequencies on this bass combo?
The 4-band EQ includes Low, Mid Low, Mid High, and High controls. Three selectable frequencies are available for each of the two mid bands to tailor projection or presence in the mix. The Deep and Bright filters respectively affect the depth of the bass and the brightness.
Is the 1x12 combo suitable for slap and modern tones?
The 12-inch speaker paired with the horn tweeter covers a frequency response from 38 Hz to 18 kHz. This setup favors defined attacks and harmonic reproduction, especially for slap playing or pick use.
Is the AT Cube 800 fan adjustable?
A Studio/Live switch allows adapting the fan operation between silent mode and cooling performance. A mute function is also included on the amplifier.



