andyhaines

Thanks, yes the LFSys leaves any amp with nowhere to hide. That is indeed the price to pay for transparency. @BassAdder60 good to know - what made you move on from the Eich?

I did, and do you know what? I really didn’t like it! It sounded a bit too “hard” to my ears and the power amp side was really hissy/noisy when only turned up 40-50% By comparison, the PJB D400 was pretty silent on the power side, but was too noisy for me at the preamp stage. To be fair to the GR, the preamp/DI was really quiet. Having to disable the fan every time I turned it on was tedious. So, this too has gone back. The next step will be to try the Eich. Did I mention earlier that I’m really picky? I sometimes envy those who just buy stuff and get on with it…

No worries - I’m in my 50s and I’m definitely struggling with keeping sharp!

GR Bass One 350 ordered today. Thanks to everyone for their invaluable thoughts and suggestions. I’ll let you know how I get on!

Thanks for confirming @Hellzero that was also my understanding from the manual, however a thread on Talkbass from a few years ago seemed to throw up some confusion involving old versions of the manual. But good to have it confirmed. Thanks @Dood re teaching and using plugins. My audio interface (and older RME babyface) does not support running plugins directly on interface so I’d have to use my DAW for plugins which (for me) adds latency etc. I also use OBS for teaching but have no issues with routing mics, bass, DAW, videos etc to remote students using RME’s excellent TotalMix software which lets you route pretty much anything to anything.

Final questions for @Hellzero and the other GR Bass one users: can you confirm that there is an input clip light? The manual says that it is the power LED on the right hand side but I’ve not seen it demonstrated in any demos. Similarly the manual states that the various LED settings have a VU meter mode (which could be useful) but in reality this seems to be more of an aesthetic light show.

Thanks - those frequencies make sense to me. And having independent headphone volume from the master is really useful: If I'm in a cramped band pit in a theatre I'm often very close to my cab but also invariably the keyboard player's personal monitor which can blitz out a lot of what I can hear. Being able to run headphones as well as the cab would be very cool. Also just noticed the inclusion of a 9v 250ma power output which would be super useful to run my EQ2 pedal off - only need to bring one power cable!

I'm now taking a more serious look at the GR Bass One350 - I've got a few questions for @Hellzero or any other GR user if that's OK: - The manual doesn't mention what the actual frequencies of the Deep, Bass, Treble and Bright controls are - do you know? - Does plugging headphones in disconnect the speaker? The separate headphone volume knob makes me think that they are independent (which would be good) At the moment the cost/functionality of the One350 (separate volumes for headphones and DI output, switchable mid ranges, pure mode) all for £200 less than the Eich T300 does make it very attractive.

Thanks for confirming @Hellzero - that review sounded off to me as well.

@Hellzero saw this user review for the One 350 on Thomann - would you agree with any of this? ”The most important criterion, the sound, and unfortunately it's not very spectacular, I primarily lacked transparency/presence across all frequency bands, somehow the overall sound just completely lacks brilliance and depth, the whole thing was somehow very dull, that's how it was.”

@Hellzero thanks! I’d also looked at the GR One manual but couldn’t find that bit, just the reference to the studio mode for the higher models. Being able to turn the fan off is certainly promising.

@Stub Mandrel thanks, yes actually I’m already using a DI/audio interface for teaching using my headway acoustic 2 channel preamp/DI which feeds into my RME Babyface audio interface (which, like all the RME stuff is high quality kit). You could argue then, why the worry about a fanless amp if my teaching needs are already covered - but ideally I’d prefer to use a dedicated bass preamp rather than the Headway (which nevertheless is my reference DI box, it’s so quiet). @Hellzero good advice - what’s making me pause for thought here is that the GR One 800 is at the upper end of my budget and is hugely over watted for what I’m likely to use (as would the PJB BP800) But definitely going on the considered list. There’s a few online demos I’ve found that has at least given me some sense of the sonic character of the Eich, Genzler and GR One. They all sound very much in the same ball park, with their respective EQ sections and contour options adding some differences - although this is less of an consideration for me as I have the EQ2 programmable pedal which gives me full control over 10 bands, Q widths etc. From my limited point of view I would say that the Eich sounds a shade warmer with the other two just a little more sterile.

Thanks for the thoughts Phil and @Downunderwonder- I'm currently in limbo whilst I wait for G4Music to issue my refund from the D400, so I'm taking the time to let the various pros and cons bubble away. At the moment I'm leaning towards the Eich T300 or 500. I totally get your concerns about lack of proper cooling, and if I was gigging every weekend pushing the amp hard for hours on end I would certainly see the need for fan cooling. But my day-day real world situation is that the amp will spend most of the time running at a very low output - in the few weeks I was using the PJB D400 I never had the master above 8 O'clock. When I'm teaching online the master is at zero and I DI into my RME audio interface which feeds my headphones/Zoom etc. During that time the D400 was only just warm to the touch. However I'd be very interested to hear if anyone's fanless class D amp has had overheating problems in a similar usage situation.

Thanks @Hellzero, yes the seller has already been kind enough to answer a bunch of questions from me!

… just seen that the Magellan 350 has no fx loop and the fan is audible in a quiet room (which would be where I teach). Ah well!