For me the term FRFR is sort of misleading. I don’t think I’ve ever heard a speaker that didn’t have it’s own sound. With that, I recently picked up a pair of the Harbinger V4112’s. These have a built in 7 band parametric, programmable, and savable EQ! I’ve been able to get almost the same sound out of these as I do with my studio monitors… at least close enough that these will be keepers. I have a pair of the Headrush 12" but they are just too bass heavy for me, which forced me to have a separate eq on the QC just for the monitor outputs.
I’m using a DV Mark Neoclassic 112 (8.4kg) and a Harley Benton GPA-100 as monitor in companion to a venue’s PA speakers. It’s plenty loud, and sounds neutral enough to work with all of my patches. The big win for me is the weight of it.
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Just recieved the Raezer’s Edge Audio Flux 210. Not disappointed at all. This is coming from an old analog/tube player with little modeler experience. Tried studio monitors and “frfr” with various modeler units, nowhere near the experience of hot tubes. The Audio Flux has no eq, just two volumes (R/L), a stereo/mono micro switch, two xlr ins, and two xlr outs. I don’t get why we spend $$$ on flat response then want to eq it. Can’t we do that with our fancy silver box (QC)? There is a removable lower panel on the back (no tools required) to go from closed to open back, with quite a noticable difference in bass response, and room fill. The Audio Flux is about 35 lbs. That’s nothing… I’m 67 and I still own, and move occasionally, a Twin Reverb… 65 lbs., mostly stick with the Champ though. Anyway, just wanted to say that I think I found a pretty good matchup cab for the QC, at least for me.
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Geoff makes some really nice stuff.
I have been using a headrush frfr 112 for some time but I really wanted something that looked like a proper amp cab.
So research led me to the celestion F12-X200 full range speaker developed for modulars like quad cortex ,kempers etc.
And I was inspired by the Mesa/Boogie Thiele Compact ported 1x12" Extension Cab, they sound huge.
I contacted Zilla cabs here in the UK and they made me a custom cab designed for the x200 speaker
X200 cab build
I would power this with a Seymour Duncan powerstage 200 .
All in all it looks and sounds excellent, I specified white speaker cloth and black western tolex.
Does look very custom boogie ish.
Came in at about £450 with the speaker I specified.
Add the powerstage and your looking at close to £900 but it looks better than a headrush.
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That looks great!
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Does anyone have any thoughts on Blueamps? I don’t see many comments around the web, some people speak well of it, but too few people to be sure about the purchase. I would be leaning towards the Cube model, with two 8" coaxial cones, stereo and weighing only 10kg. I have no technical information about the product, and I am not interested in stage volumes but only in home use as an alternative to monitors.
I’m direct into a soundboard about 95% of the time but when I’m not, I run directly to a couple of QSC K12.2s and I’ve had no complaints.
You might think I’m crazy… but I found a (for me) perfect sollution.
A VOX AC30C2 2x12 (1x Greenback 1x Vintage30)
I modified it in a way that I can use it as a guitar speaker only (it’s quite easy) connecting the QC and an inexpensive solid state power amp (Harley Benton GPA-100 or GPA-400).
But the good thing is, I can also connect the QC directly to the effects return, to use the tube power amp of the AC30 with QC preamp or amp captures (power attanuator recomended).
Or I connect QC directly to the input of the amp and use pedal or effect captures.
And, you still have a full tube amp, which is also nice.
It’s a lot of fun playing with this posibilities and it sounds definitely great. I’m very happy!
So is my wife, the AC30 is beautiful and looks great in the living room 
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I use Atomic CLRs CLR Reference FRFR Monitors - Atomic Amps | AmpliFire Pedal | CLR Reference FRFR Monitors
The QC will replace the Axe-Fx in the rack if I can dial similar or better amps/rigs/FX. The axe-fx tuner displays on my midi footswitch. I wish the QC did that. It’s extremely handy!
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I have had success plugging into the “amp in” of a Boss Katana. I have never had my QC let me down, but if something ever were to happen, I have a backup plugged in and ready. The Bergantino cab is extremely neutral and has an extended range. So much so that I do not turn off my cab emulations. This combination gives amp in room feel while allowing me to hear very close to what is coming out FOH. Because I do not turn off my cab emulations for routing to my amp, any last minute edits are a breeze.
Moreover, patches I create on this rig seem to translate well to FOH.
At this particular gig, the sound man miced the amp as a backup, but ended up blending in some of the amp tone with the direct out of the QC. The tones were huge. Maybe a bit overkill, but the options are there if you want to experiment.
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Hi,
I understood that you use a Kemper speaker together with the qc. Good deal?!
Thanks for your answer!
Best Wishes
Bernhard
I own a Mimic112 and I like it. But You can ask Marco from Blueamps he might give You some advice.
QSC 12.2 and you cant go wrong.
How does the GPA-400 sound? Is it loud and clear or does it add colour to the sound?
Hello Classic76
I did not feel that the GPA-400 would add any color to the sound. I used it for my Kemper Toaster before I bought a powered one and I could not hear any difference. Now I gave it to our bass player and he uses it together with a Fender Preamp in a 4x10 speaker, works very well. The thing has a lot of power, especially when bridged. Be aware, that the maximum output power is related to the impedance of the speaker you connect (check manual).
Now with the Quad Cortex I’m using 2x Harley Benton GPA-100. They sound very good! I use them with 1x12" and 2x12" Speakers.
I can recommend the GPA power amps without hesitation 
That’s really good to know. Have you run it in bridged mode? Does that affect the sound at all?
I have a 16 Ohm speaker cab and appreciate it would be 50w in standard mode, but 200w bridged.
If you bridge the GPA-400 it should not affect the sound in any negative way. That just gives you more output current resulting in more power. So bridged 200W for a 16Ohm cabinet is correct.
If your cabinet is 2x12 or 4x12 you can also consider to wire it differently to achieve lower impedance. For example 2x12” with 8 Ohm speakers have 16 Ohm when wired in series, but 4 Ohm when wired parallel. So you might be able to get enough power from only one side of the amp by rewiring the speakers.
Double check the power rating for the speakers in your cabinet. Some are rated for 60W (like the ever-popular Vintage 30), some are 25W or 30W, etc. Not a good idea to run 200W bridged mode on a set of speakers that can’t handle it.
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