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GR Bass review

Carbon fiber cabinets are really very light, and the damage is probably caused by couriers who, handling light packages, throw the packages without paying attention.
To solve this problem, we are replacing all packaging with boxes that can withstand drops of up to 4 meters.
We use very resistant products and this type of damage cannot be caused with normal use.
Customer satisfaction and assistance are fundamental to us, so we have already proposed to Mr. Al Krow, despite the fact that he bought the cabinet as used, to replace the product with a new cabinet completely free of charge.
We are trying to improve our products day by day to offer the best product on the market, and your every advice or criticism is important for us to improve ourselves.
Thank you all
Sorry for changing the subject of current conversation, my qustions is still about the RG amps though: I'm curious what is the input impedance of the GR amps / combos, as I intend to purchase one (The Cube 500 combo) to use with my upright bass, equipped with piezo pickup. Thank you!
 
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I'm curious what is the input impedance of the GR amps / combos, as I intend to purchase one (The Cube 500 combo) to use with my upright bass, equipped with piezo pickup. Thank you!

I asked them on Instagram few weeks ago about making their Dual-Preamp more upright friendly and got an answer that they are working now on head and combo for upright and they should be available soon.

BTW, looong time no see Jaromir - we’ve met 10yrs ago (?) in Leszno, Poland:)
 
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Hi, what's your name? I remember Leszno, of course! Thanks for your answer - that's an excelent news! Yesterday I was checking some amps in a shop to use for louder gigs. Otherwise I use my old GK MB200 combo. I didn't really like anything, neither the new GK legacy amp, nor the popular Aguilar stuff. The only thing which made me smile a little was Eich, and then of course the GR Cube 500 combo. Good sound and just unbeliavable weight, which is huge factor for me, to be honest. So I'll be waiting for their DB combos. Thanks again and all the best from Prague! Jaromir
 
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I’m also using GK 200MB combo and also waiting for “upright combo” from GR Bass:)
PM sent.
I've just received an answer from GR regarding the input impedance: it's 1 Mohm and can be modified to 5 Mohm upon request. I believe 1 Mohm is fine for David Gage Realist pickup, so I have no hesitations to use the amp or combo with upright...
 
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F25DDBEA-A3FF-467A-A423-D0A2F2814602.jpeg
My GR Bass cabs - love the amazing light weight and sounds great too
 
Just got back from rehearsal and I was VERY pleased with the 212 Slim. As shown in the previous photo I had everything loaded onto the cart but when I got to the studio I just carried everything in, it was all so light and less trouble than messing around with the cart.

Tonight I used the Quilter BB800 amp and finally got to see the speaker cones really move. At such volumes I did experience head creep and every time I moved it back to the middle it would always move back to the same place and stay there but not fall off. Still, I will get a piece of shelf liner or use a towel to prevent movement. Stability of the rig was fine with the smaller and lighter BB800 head.

My guitar player kept commenting how diamond clear the sound was but with lots of beefy bottom end too, which I concur. Much nicer sounding than the crusty olde Peavey and rattling 4x12 cabinet that I usually have to play through over there, and definitely more light and compact.

I am really enjoying the sheer simplicity and power of the Quilter BB800 with the sonic clarity of the GR Bass, both at home and at rehearsal. Next week I will try a different rig and see how it goes, but it will be very hard to beat the ease of transport, great sound and immense power of tonight's setup.

View attachment 4236972

I'd be afraid the GR stuff might catch some Peavey cooties being that close :)

Nice rig BTW...

Analogeezer
 
Carbon fiber cabinets are really very light, and the damage is probably caused by couriers who, handling light packages, throw the packages without paying attention.
To solve this problem, we are replacing all packaging with boxes that can withstand drops of up to 4 meters.
We use very resistant products and this type of damage cannot be caused with normal use.
Customer satisfaction and assistance are fundamental to us, so we have already proposed to Mr. Al Krow, despite the fact that he bought the cabinet as used, to replace the product with a new cabinet completely free of charge.
We are trying to improve our products day by day to offer the best product on the market, and your every advice or criticism is important for us to improve ourselves.
Thank you all

Hi,

I have gotten interested in the 2 x 8" cabs, being a racing fan (as in F1, World Sports Car, Moto GP, etc.) the Carbon Fiber thing sure is sexy and and high tech but I do have a question.

I noticed the Carbon Fiber (note Carbon Fiber IS NOT Graphite, k people?) versions only use Carbon Fiber for the side panels, the top, bottom and rear panels are regular plywood.

Was this a design based decision or to limit the cost to a reasonable amount?

No problem with the latter, the CF cabinets are pricey (but seem to be worth it), if they were ALL CF that would probably make them even more expensive.

In the case of the 2 x 8" the weight difference is not a big deal (six pounds I believe) but the price is about 50% more.

I almost tried out the regular 2 x 8" a while back, but that cab (used at a local GC) was sold before I got there.

The closest dealer with these actually in the store is like 250 miles away.

I am thinking I would be fine with the regular wood version, but I would love your input as to the differences other than the materials.

Also - I always buy the covers/cases for anything when I can, these items often are no longer available later on, especially if the product line changes.

Are the 2 x 8" covers generally available? Seems like a must especially for the CF since the sides are so damn purty and all :)

Thanks!

Analogeezer
 
Hi,

I have gotten interested in the 2 x 8" cabs, being a racing fan (as in F1, World Sports Car, Moto GP, etc.) the Carbon Fiber thing sure is sexy and and high tech but I do have a question.

I noticed the Carbon Fiber (note Carbon Fiber IS NOT Graphite, k people?) versions only use Carbon Fiber for the side panels, the top, bottom and rear panels are regular plywood.

Was this a design based decision or to limit the cost to a reasonable amount?

No problem with the latter, the CF cabinets are pricey (but seem to be worth it), if they were ALL CF that would probably make them even more expensive.

In the case of the 2 x 8" the weight difference is not a big deal (six pounds I believe) but the price is about 50% more.

I almost tried out the regular 2 x 8" a while back, but that cab (used at a local GC) was sold before I got there.

The closest dealer with these actually in the store is like 250 miles away.

I am thinking I would be fine with the regular wood version, but I would love your input as to the differences other than the materials.

Also - I always buy the covers/cases for anything when I can, these items often are no longer available later on, especially if the product line changes.

Are the 2 x 8" covers generally available? Seems like a must especially for the CF since the sides are so damn purty and all :)

Thanks!

Analogeezer

Hi, the carbon fiber cabinets have no wooden parts. All sides are carbon fiber and the top and rear trim is just an aesthetic decision.
The Carbon Fiber is very resistant and shouldn't be damaged, but covers are available for the whole line, even for 2x8
 
@GR Bass Staff Hi, i'm looking for a compact and powerful power-amp, the Pure Amp 800 seems like an ideal fit, due to its form-factor and its specs. Something i don't get though is somehow the concept of this product. Looks like a raw head, no EQ and extra features, rather than a power-amp. It's interesting and maybe useful for some but i'm a bit concerned with adding an extra gain-stage between my external pre and the power-amp. Is there anything like an 'impedance detector' which internally bypasses the gain section of the Pure Amp if it's fed with a strong line level signal ?
 
@GR Bass Staff Hi, i'm looking for a compact and powerful power-amp, the Pure Amp 800 seems like an ideal fit, due to its form-factor and its specs. Something i don't get though is somehow the concept of this product. Looks like a raw head, no EQ and extra features, rather than a power-amp. It's interesting and maybe useful for some but i'm a bit concerned with adding an extra gain-stage between my external pre and the power-amp. Is there anything like an 'impedance detector' which internally bypasses the gain section of the Pure Amp if it's fed with a strong line level signal ?

I’m not sure I understand your question. In the latest version of the pure amp thanks to the gain potentiometer you can optimize the input signal.
The design is the classic GR design very simple that recalls our Amps.
I hope I’ve been helpful
 
If i connect directly my bass to my power-amp, nothing will happen, as the signal is too weak to feed its needs. It's not the case with the Pure Amp 800 it seems. I'm not a tech guy at all, but what i do understand of it is there's an extra gain stage on this power-amp, compared with a vol knob only power-amp, correct ? As i didn't notice a switch to bypass this Pure Amp gain section when fed with an external preamp, it somehow seems counter-intuitive to me, as i'd only need a volume on my power-amp in such a situation. Hence my question about a system internally bypassing this input gain stage if dealing with a line-level signal. For instance, if i run a DI signal in my Focusrite Clarett, its input gain stage is bypassed. There's not such system in the Pure Amp ?
 
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If i connect directly my bass to my power-amp, nothing will happen, as the signal is too weak to feed its needs. It's not the case with the Pure Amp 800 it seems. I'm not a tech guy at all, but what i do understand of it is there's an extra gain stage on this power-amp, compared with a vol knob only power-amp, correct ? As i didn't notice a switch to bypass this Pure Amp gain section when fed with an external preamp, it somehow seems counter-intuitive to me, as i'd only need a volume on my power-amp in such a situation. Hence my question about a system internally bypassing this input gain stage if dealing with a line-level signal. For instance, if i run a DI signal in my Focusrite Clarett, its input gain stage is bypassed. There's not such system in the Pure Amp ?
My understanding was that it’s the power amp section in a stand-alone unit.
 
If i connect directly my bass to my power-amp, nothing will happen, as the signal is too weak to feed its needs. It's not the case with the Pure Amp 800 it seems. I'm not a tech guy at all, but what i do understand of it is there's an extra gain stage on this power-amp, compared with a vol knob only power-amp, correct ? As i didn't notice a switch to bypass this Pure Amp gain section when fed with an external preamp, it somehow seems counter-intuitive to me, as i'd only need a volume on my power-amp in such a situation. Hence my question about a system internally bypassing this input gain stage if dealing with a line-level signal. For instance, if i run a DI signal in my Focusrite Clarett, its input gain stage is bypassed. There's not such system in the Pure Amp ?


The Pure Amp has a gain that allows you to optimize the input signal, but if you want to use it keeping it in the unity-gain position is possible. Alternatively we can make a custom Pure Amp without gain potentiometer.