Gr Bass AT 112H+-4 BLK BLACK
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- This item is covered for 3 years
Essential Information About the GR Bass AT 112H+-4 Amp
Essential Information About the GR Bass AT 112H+-4 Amp
- 1 x 12-inch bass cabinet ultra-portable, weighing only 8 kg, designed for bassists who are frequently on the move (rehearsals, studio, concerts).
- 450 W RMS at 4 ohms : a compact format capable of handling serious levels, ideal with a powerful modern head.
- Carbon fiber construction : high rigidity, good projection, and durability for intensive use.
- 1-inch tweeter with 4-position adjustment to tailor attack and brightness according to your bass and style.
Manufacturer Information
Gr Bass
https://www.grbass.com
info@grbass.com
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Safety manager:
IMS Distribution
Email: contact@ims-distribution.com
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Historical Context and Positioning in the Range
The GR Bass AT 112H+-4 belongs to the family of high-performance compact cabinets, with a clearly modern approach: featherweight, reduced footprint, and wideband reproduction thanks to the woofer + tweeter combination. In practice, this is the type of configuration chosen as the main cabinet for small to medium stages, or as an intelligent extension to build a larger stack without sacrificing portability.
Who This Amp Is For
This cabinet is aimed at intermediate to professional bassists who want a reliable, powerful, and easy-to-transport system. It is very suitable for rehearsal (volume, power handling), studio (definition and precision), and stage (projection and clarity in the mix). Style-wise, it excels in pop, rock, funk, fusion, gospel, and any situation where a solid low end with clear attack articulation is desired.
Features and Innovations
The 1 x 12-inch format is an excellent compromise: enough body to deliver the lows, and sufficient speed to remain precise in the mids. The front-ported bass reflex design helps maintain impact, even when the cabinet is close to a wall or placed at the front of the stage. The 1-inch tweeter with 4-level adjustment allows you to go from a very smooth sound (ideal vintage, fingerstyle, flats) to a brighter response (slap, pick, new strings), without having to over-correct the EQ on your head.
Sound Character
The GR Bass AT 112H+-4 aims for a modern, clean, and responsive sound, with tight lows and an adjustable high end according to your preferences. The neodymium woofer provides a sense of quick response and good definition on bass lines, while the tweeter brings out the grain of the attacks, harmonics, and presence. With a stated 99 dB SPL sensitivity, the cabinet reacts quickly to playing dynamics and gives an impression of efficiency, useful for positioning yourself in the mix without unnecessarily pushing the amplifier's power.
Technical specifications
| Category | Bass cabinet | Number of speakers | 2 |
| Cabinet impedance (Ω) | 4 Ω | Color | Black |
| Speaker diameter | 12" | Power output | 450 W |
| Power handling | 450 W RMS | Type | bass reflex cabinet |
| Impedance | 4 ohms | Port | front output |
| Frequency response | 40 Hz to 22 kHz | Material | carbon fiber |
| Sensitivity | 99 dB SPL | Finish | Black |
| Configuration | 1 x 12-inch neodymium woofer | Dimensions | 41 x 51 x 35 cm |
| Tweeter | 1 inch | Weight | 8 kg |
| Tweeter adjustment | 4 positions | Power supply | 220 V |
Questions frequently asked
Which amp head should be used with a 4-ohm 450 W bass cabinet?
The 4-ohm impedance requires an amp head compatible with a 4 Ω load. The rated power handling is 450 W.
Is the GR Bass AT 112H+-4 easy to transport?
Weighing 8 kg with dimensions of 41 x 51 x 35 cm, this cabinet remains particularly compact. Its carbon fiber build contributes to this lightweight design.
What sound does the 4-position adjustable tweeter deliver?
The 1-inch tweeter has four adjustment positions. It allows for softening the highs or emphasizing attack and harmonics depending on playing style.
Is a 1x12 cabinet sufficient for rehearsals and small gigs?
This model pairs a 12-inch neodymium woofer with a tweeter and has a sensitivity of 99 dB SPL. It is suitable for rehearsals, studio work, and small to medium venues.
What is the frequency response of this bass cabinet?
The specified frequency response ranges from 40 Hz to 22 kHz. The front bass-reflex port enhances low-end impact, even when positioned near a wall.



