Gr Bass GR 210+-4 BLK BLACK
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Information
Information
Manufacturer Information
Gr Bass
https://www.grbass.com
info@grbass.com
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IMS Distribution
Email: contact@ims-distribution.com
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Historical Context and Positioning in the Range
The GR BASS GR 210+-4 BLK fits within the brand's "Pure Sound" approach: a reproduction designed to respect the character of your bass and playing style rather than imposing a strong coloration. In spirit, this cabinet aims to be a "Swiss Army knife" cabinet: compact enough for club gigs and powerful enough to handle more demanding situations, especially when paired with a head capable of delivering its full potential at 4 ohms.
With its 2 x 10-inch format, it naturally sits between the 1 x 12 (often rounder) and the 4 x 10 (often bulkier and larger): it offers fast attack, tight low-end control, and excellent note clarity, all in a manageable size.
Who This Amp Is For
This cabinet is aimed at bassists seeking a versatile and high-performance solution: from progressing musicians starting to play loud in a band, to experienced bassists looking for a reliable, precise cab that's easy to integrate into various rigs. In rehearsal, the high sensitivity helps maintain presence without pushing the head excessively. In studio, the 2 x 10-inch plus tweeter combo favors detailed miking, useful for pick playing, slap, or modern tones rich in harmonics.
On stage, it is particularly suited to pop, funk, modern rock, metal (for low-end precision and attack), gospel, and fusion contexts. The adjustable tweeter also allows you to tame the high end for more vintage aesthetics or open up the highs to recover the snap of new strings and attack definition.
Features and Innovations
The GR 210+-4 BLK is a cabinet: it does not offer channels, EQ, or built-in effects. Its main "feature" is its ability to faithfully reproduce what you send from your head, preamp, or pedalboard. The front-facing bass reflex design promotes a more direct low-end presence in front of the cab, practical for stage monitoring on small stages and maintaining impact when placement is less than ideal.
The 1-inch adjustable tweeter is a real comfort asset: you can adjust the amount of high frequencies in one gesture depending on the venue, style, or string type (bright stainless steel, rounder nickel, softer flatwounds). The result: you keep definition without making the sound harsh.
Sound Characteristics
With its 2 x 10-inch speakers, this cabinet emphasizes fast response and clarity. Notes start quickly, attacks stand out, and lines remain clean even when the drummer pushes. The response down to 35 Hz provides solid lows for lower tunings and five-string basses, while the tweeter extends the spectrum up to 22 kHz for a sense of air, string texture, and precision (slap, tapping, pick playing).
In practice, you get a tight low end rather than overwhelming, present mids to cut through the mix, and a high end that can be tailored thanks to the tweeter adjustment. Paired with a transparent head, it highlights your bass's character. With a more colored head (vintage grain, overdrive, tube preamp), it maintains the articulation needed so saturation stays defined.
Technical specifications
| Category | Bass cabinet |
| Effects loop | No |
| Cabinet impedance (Ω) | 4 Ω |
| Speaker diameter | 10" |
| Number of speakers | 2 |
| EQ | No |
| Color | Black |
| Finishing | Black tolex |
| Power output | 600 W |
| Power handling | 600 W RMS |
| Impedance | 4 ohms |
| Speakers | 2 x 10-inch woofers |
| Tweeter | 1-inch adjustable |
| Frequency response | 35 Hz to 22 kHz |
| Sensitivity | 102 dB SPL |
| Load type | bass reflex |
| Port | front-facing |
| Finish | black |
| Dimensions (W x H x D) | 55 x 51 x 30 cm |
| Weight | 16 kg |
| Power supply | 220 V |
Questions frequently asked
Which amp head should be paired with the GR Bass GR 210+-4 BLK?
With its 4 ohm impedance and rated power of 600 W, this speaker cabinet is designed for an amp head compatible with 4 ohms. It can thus deliver the full power of a head built for this load.
Is the 2x10 inch format suitable for a 5-string bass?
The frequency response from 35 Hz to 22 kHz allows for solid low end reproduction, including with low tunings and five-string basses. The two 10-inch woofers favor a fast attack and clear note definition.
Is the tweeter adjustable?
A 1-inch adjustable tweeter allows modulation of the amount of high frequencies according to playing style, strings, or venue acoustics.
What are the dimensions and weight of the cabinet?
The size measures 55 x 51 x 30 cm and weighs 16 kg. These dimensions correspond to a 2 x 10 inch cabinet designed for rehearsals and club gigs.
What sound does the GR Bass GR 210+-4 BLK produce?
The front-ported bass-reflex design promotes direct low-end presence in front of the cabinet. Its sensitivity of 102 dB SPL helps maintain presence in a band setting. The 1-inch tweeter adds definition to pick attacks, slap, and tapping techniques.



