• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

GR AT Cube 800...damn, this looks like something special!

Although the Pure Amps do have the extra features that the GSS, Demeter, and others do not have. There is no DI out on any of the other small standalone mono amps, as far as I know, as well as no 9V outlets. I think all of them have a single gain control. The separate gain and volume would allow you to plug most, if not all, basses directly into the input with no separate preamp needed.

If the Pure Amp 350 were available, I would pick one up, since I have a pretty decent collection of tone-shaping and other pedals that could be used in front of it.
There appears to be no clear winning slam dunk here, as one might expect given the competitive nature of Class D amp designs.
 
I have emailed GR Bass to ask if the Pure Amp 350 is still in production. I'll post any reply I get.

Also, in a dormant GR Bass thread, I found the Sonata Marketing rep, @jfiles and have PMed him. If he's still active, he may pop in.
 
Last edited:
I checked jfiles' messages, and he has not posted on Talkbass since 2020. Sonata Marketing still has a website up, but it doesn't show any GR Bass product. I used their website contact form to inquire. So this is now three different ways I've used to try to find out what's going on.

I'll post anything I hear.
 
Last edited:
  • Like
Reactions: DJ Bebop
I checked jfiles' messages, and he has not posted on Talkbass since 2020. Sonata Marketing still has a website up, but it doesn't show any GR Bass product. I used their contact form to inquire. So this is now three different ways I've used to try to find out what's going on.

It's beginning to look like GR Bass has suspended operations, maybe only currently, but it could also be permanent. I'll post anything I hear.
I’m not all warm and fuzzy about a manufacturer who lists ~10 dealers, and none of them list the product.
 
It's beginning to look like GR Bass has suspended operations, maybe only currently, but it could also be permanent. I'll post anything I hear.
I really don't think. I think they have suply chain issues, like many amp manufacturers. At least, they are still active on Facebook, today they posted a story with their stand at the NAMM trade show.
 
  • Like
Reactions: Jim C
Go to NAMM to meet them in peson, and ask them if they are still in business :)

gr-namm.jpg
 
From John Files:

"The material shortages of last year was particularly difficult for a product line that sells faster than it can be produced, like GR Bass and GR Guitar products. Plans have been finalized for this year on how to get caught up. I have never stocked the PureAmp350 because of the lower power rating, but I have sold a few PureAmp800s. The price is so close between the PureAmps and the ONE series, that I sell about 50:1 ONE series to the PureAmp series. For example, the new MAP price of the PureAmp800 is $649, while the ONE800 is only $799. I should see more of the GR gear in the next 60 days."
 
Last edited:
  • Like
Reactions: Jim C and DJ Bebop
The price is so close between the PureAmps and the ONE series, that I sell about 50:1 ONE series to the PureAmp series. For example, the new MAP price of the PureAmp800 is $649, while the ONE800 is only $799. I should see more of the GR gear in the next 60 days."

I was wonderin the same thing. With the amps you have the "Pure" included and the option to use the eq when needed

Of course is cool to have the ability to choose and save 150...
 
DIMENSIONS – 43 H, 40 W, 35 D cm

No mention of inches anywhere.
Yeah, we're the only people that use inches anywhere in the world.

We're also the only people that call football soccer. And a preschool version of rugby, football. Which is a sport that involves carrying a ball in your hands.
 
Last edited:
I haven't heard the amp in person yet, only on the video. Separates are, as a rule, pricier than combos. So, I'd restrict comparisons to other combos. That said, on paper I see the MarkBass MB58R MINI CMD121 PURE as direct competition and at $999, a greater value. But I haven't heard either in person.
I'd like to hear a side by side shootout.

I’ve had an MB58R Mini CMD 121 Pure for about 2 weeks, and it’s very hissy with no tweeter control. The weight and features are great. I actually love it for jazz guitar, and it sounds nice in my house, but the hiss is always there. I play and record double bass a lot with mostly acoustic classical and jazz groups, and it just won’t cut it.

I’m actually returning it to the store today ostensibly because it has a faulty Speakon, but I’m just going to bite the bullet and get the ATCUBE Acoustic from Clubbass.ca!
 
I’ve had an MB58R Mini CMD 121 Pure for about 2 weeks, and it’s very hissy with no tweeter control. The weight and features are great. I actually love it for jazz guitar, and it sounds nice in my house, but the hiss is always there. I play and record double bass a lot with mostly acoustic classical and jazz groups, and it just won’t cut it.

I’m actually returning it to the store today ostensibly because it has a faulty Speakon, but I’m just going to bite the bullet and get the ATCUBE Acoustic from Clubbass.ca!
Are you using the "ol skool" knob? That will cut the hiss.
 
I want to hear what my bass guitar sounds like through my Carvin V3. Not bas enough to take everything out from under my bed and hook it all up. I had tow six by nine's and listened to a guy on another forum and wired the drivers in series and it started sounding okay, but then it got this weird warbully sound going on and then I tried to hook them up in series two different ways... Same result... I KNOW now not to listen to people on forums if it seems like they don' t know what they are talking about.

My new electric guitar setup now had two Bose woofers... I LOVE IT! I just hope that it doesn't fry tubes or speakers.