Any update on Updates to the QC?

Not much from Neural actually on this forum which seems a poor decision. Be nice for them to be directly involved a bit more with the community here.


I don’t want to ride them because I’m sure it’s painstaking work, but I feel like it’s been a little overdue. Don’t get me wrong, I really like the unit, but I find it odd that they’re so behind on the software aspect. The fact that there’s no midi learn function is bonkers. I know it’s not a top tier concern, but as someone with a Behringer FCB1010, it’s really a pain in the ass to program it to the QC CC numbers. It’s like I’m doing a dance.

Huh? The QC has MIDI learn functions, just go to settings in scene mode and select ‘PRESET MIDI Out’. Works great, use it to control my iPhone running the Quantiloop looper app etc.

But if I want to reserve a bank on the FCB for the QC, it has to be set to the pre determined CC numbers in the QC, and the default CC numbers on the foot controller don’t always match at default. It would just be easier for the QC to read any switch, because again, programming the FCB takes way too many steps for changing a single parameter. It would just be a huge time saver.

The new update is out!

CorOS 1.2.0 is now available

CorOS 1.2.0 is now available. Download it via Settings > Device Options > Device Updates on your Quad Cortex once connected to Wi-Fi. We recommend that you create a backup before updating your firmware.

CorOS 1.2.0 includes four new amplifiers, two cabinets, three overdrives, and four reverbs, alongside a handful of new features, changes, and bug fixes. We have also increased the local Capture and IR slots from 256 to 1024.

Read the changelog for the full list of changes.

Pickup level - a unique approach to input impedance and its interaction with Fuzz
Adding Facial Fuzz, a new Fuzz algorithm based on the legendary Dallas Arbiter™ Fuzz Face™, presented a unique challenge. Pedals with low input impedance, like the Fuzz Face™, have a strong interaction with the guitar’s pickups and volume control. With digital models of such pickups, that interaction is interrupted; the guitar pickup doesn’t “see” the fuzz pedal, and likewise the fuzz pedal doesn’t “see” the pickup.

To address this problem, we have included pickup and volume controls, Pickup Switch and Pickup Level, at the input of the Facial Fuzz. With this, the model’s signal is fed from a source that mimics the behaviour of guitar pickup circuitry.

The Pickup Level control can be thought of as an external guitar volume control. You can set it lower for cleaner tones or all the way up for maximum fuzz effect. Another way to use it is to set it around 8.0 - 9.0 and use your guitar’s volume potentiometer to adjust the amount of fuzz.

Set the Pickup Switch to match your guitar’s pickups. If you have a guitar with single coil pickups, such as Stratocaster or Telecaster, choose “Single”. With humbucker equipped guitars such as Les Paul, choose “HB”. Two different switch positions yield different tonality and different levels of gain. For that reason you can also try mismatching the Pickup Switch.

Four new Reverbs and a new approach to algorithm design
CorOS 1.2.0 incorporates three new Plate Reverb algorithms: Plate, Plate Lush, and Plate Tight, as well as an interesting variation of a hall reverb; Mind Hall. Despite having the sonic characteristics of a physical space, Mind Hall is not based on any real one. It also provides infinite decay capabilities, ideal for recreating freeze-style effects.

To implement these new Reverbs, we experimented with a different algorithm design approach.

We have been working for a long time on a new engine based on an All-pass Filter Ring, which has many advantages to Feedback Delay Networks (FDNs) for embedded applications. These techniques have been used for many years, with Lexicon® having some of the most noteworthy reverbs implemented this way. They are incredibly efficient, but have the added challenge that fine tuning them is considerably more involved than with the more commonly used FDNs.

This is due to their unconventional topology; these algorithms are full of “golden numbers”, many of which are still kept a secret, so the literature on them is rare and limited. They also have an extremely high number of parameters, which have to be dialed in perfectly in order to obtain a natural, smooth-sounding reverb; a process that at times felt closer to black magic than science.

After a lot of time fine tuning, we are extremely proud of these four incredibly lush new reverbs, which also happen to be extremely efficient in their CPU and memory requirements.


  • New amps:
    • Bogna Vishnu 20th Clean
    • Captain 50
    • EV101IIIS Blue 6L6 100W
    • EV101IIIS Red 6L6 100W
  • New cabs
    • 212 US TWN CK2
    • 412 Watt S4123
  • New pedals:
    • Exotic Z Boost
    • Exotic Bass Z Boost
    • Facial Fuzz
  • New reverbs:
    • Mind Hall
    • Plate
    • Plate Lush
    • Plate Tight
  • A notification icon displays next to the Main Menu and on the Settings page when a new CorOS update is available.
  • A warning message will display if you try to download a Preset that is not compatible with your current version of CorOS (for example, if the Preset uses devices that are not available in your current version).


  • USB inputs have been renamed. “From Out 1” is now “USB Output 3 (Grid)” and “From Out 2” is now “USB Output 4 (Grid)”.
  • Local Neural Capture storage has been increased from 256 slots to 1024 slots.
  • Local Impulse Response storage has been increased from 256 slots to 1024 slots.
  • Neural Capture sanity check messages have been rephrased to be more informative.
  • Multi-Out is now the default Output option when creating a Neural Capture.


  • The Tuner correctly functions at frequencies other than 440Hz.
  • The Undo & Redo buttons now correctly undo/redo a device change when a block on The Grid is changed via the contextual menu.
  • Splitters can now have their type changed in scenes.
  • The “Download All” button no longer displays on the Cloud > IRs folder when there are no IRs to download.
  • Scene-assigned Splitter parameters are no longer lost when changing scenes via footswitches while the Splitter type parameter is being modified.
  • Double-tapping the MAX RANGE % parameter on the expression pedal configuration screen now correctly resets the value to default.
  • An issue where expression pedal 2 would modify the UI value of the top-left parameter controlled by expression pedal 1.
  • An issue where pressing a footswitch while simultaneously dragging-and-dropping a block could cause a crash.
  • Sweeping an expression pedal assigned to multiple parameters no longer causes an error during the Neural Capture sanity check.
  • The bypass state of a block saved in a Preset is now recalled when unplugging an expression pedal assigned to the block.
  • Tape Delay trails are now maintained when changing the bypass state of a Tape Delay block via scenes.A bug in which the Adaptive Gate would not function correctly when placed before certain drive effects.
  • Several minor backend fixes and optimizations.

Epic. My QC showed up yesterday, so I’ll be updating in a just bit!

Maybe it’s just my imagination but I swear the unit sounds better with this update. Less boxy and more organic. Not sure if any of the behind the scene changes caused this, or again, just my imagination.


Happy with added verbs as I definitely wanted plate.
Not sure we need more amps and cabs though as they are populated by the community too. I mean it’s cool, but what about a looper? A change to the stomp modes and controls so we have more options there?

I’m not bashing here, so sry if it seems that way.
More is needed though Neural to keep up with the competition. Kemper just released their double tracker for example, which is damn good

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It’s just your imagination

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I guess it’s possible that they tweaked the I/O’s a little, but I can’t seem to move past noodling the Morgan with the Mind hall to check this theory lol. I’m more impressed with how many fixes they managed on top of the great new content. This needs to happen first before they can move on to the other things.

I would like to see more control over the effect blocks via midi or multiple effect blocks assignable to one switch for stomp mode, but I have what I need for now. I’m very happy with my QC :smiley:

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Not sure the existing sounds changed at all, but the new Bogner clean amp is amazing. Way more open and articulate than anything else in the QC. Maybe they are just getting better at modelling clean amps at this point. This alone was worth the update.


I thought the EvH 100watt EL34 Blue and Red channel additions were pre,tty good also.

Try the new Morgan 50 (Captain) as it works phenomenally well with drive pedals and related.