NDSP Quad Cortex

[Achilles]

I have zero noise issues (with the power supply - or otherwise) and no Wi-Fi issues either.

I had one of the first 1,000 units for about a year and also had zero issues.

 

[TubeStack]

It's still there, as far as i know. The QC has spotty grounding, so noise can end up completely eliminated just by connecting a cable with a proper path to ground.

My QC was 100% noisless as soon as i connected a USB-B cable

I think the reason provided by NDSP was so it wouldn’t cause ground loops.

It was actually quieter in 4cm because of this, maybe, than my FM9 or Helix?

 

[namathan_zirwir]

It's still there, as far as i know. The QC has spotty grounding, so noise can end up completely eliminated just by connecting a cable with a proper path to ground.

My QC became 100% noisless as soon as i connected a USB-B cable

just sharing my experience. I understand - that the power supply is not grounded. And I do always have it connected USB to my laptop.

 

[TubeStack]

I think the reason provided by NDSP was so it wouldn’t cause ground loops.

It was actually quieter in 4cm because of this, maybe, than my FM9 or Helix?

To expand: both the FM9 and Helix sometimes need a Morley Hum Eliminator in my 4cm setup, whereas the QC didn’t.

 

[Mongillo19]

I had one of the first 1,000 units for about a year and also had zero issues.

What made you get rid of it?

 

[Achilles]

both the FM9 and Helix sometimes need a Morley Hum Eliminator

STOP THE PRESSES!!!

 

[Achilles]

What made you get rid of it?

I'm currently rotating 3 tube heads and pretty often am messing with GBMT - and usually first thing in the morning I really dislike the tones I'd settled on the evening before so immediate tweaking is needed. Whichever head I'm using sits on my wire rack with the knobs within easy reach so all of this is as simple as can be.

Not the case with modelers - as easy as the QC was to work with it's still not even close.

I also found I really enjoy looking over and seeing tolex covered enclosures with brand logos on them rather than a metal box that's basically sitting in for the real thing.

 

[GTR37]

It's still there, as far as i know. The QC has spotty grounding, so noise can end up completely eliminated just by connecting a cable with a proper path to ground.

My QC became 100% noisless as soon as i connected a USB-B cable

See, @Whizzinby hardwiring solved 2 problems
Noise and wifi

 

[Los-D]

$999

Reminds me of this…

 

[GTR37]

Reminds me of this…

View attachment 20674

Kind of yeah , I mean ultimately it’s going to look something like one of those designs QC is already fairly compact so if NDSP is saying it’s smaller than that well they are going to have to toss footswitches and I/O for sure
They could use 3 encoders like in Whiz example and then just plain tap/ hold switches for preset ^ preset down and hold for tuner

 

[Achilles]

toss footswitches and I/O for sure

When will guitarist switch to 3.5 jacks and cables for instrument level signals?
Guess the obvious answer is not robust enough for gigging, but you could save a bunch of space with 3.5 on so many units.

 

[laxu]

When will guitarist switch to 3.5 jacks and cables for instrument level signals?
Guess the obvious answer is not robust enough for gigging, but you could save a bunch of space with 3.5 on so many units.

Looking at the back of the QC, you could shrink the I/O to just those two rows of four 1/4" jacks. That would leave you:

1. Input 1
2. Fx send. Could be a stereo jack for stereo in.
3. Fx return. Could be a stereo jack for stereo out.
4. Out 1/L
5. Out 2/R
6. Capture out. Can you use this for anything else nowadays? It always bugged me that it was such a specific but rarely useful output on the QC.
7. Headphones out
8. Exp 1

Then use 3.5mm for MIDI in/out, or just MIDI over USB/BT. USB-C instead of USB-B.

 

[GTR37]

Looking at the back of the QC, you could shrink the I/O to just those two rows of four 1/4" jacks. That would leave you:

1. Input 1
2. Fx send. Could be a stereo jack for stereo in.
3. Fx return. Could be a stereo jack for stereo out.
4. Out 1/L
5. Out 2/R
6. Capture out. Can you use this for anything else nowadays? It always bugged me that it was such a specific but rarely useful output on the QC.
7. Headphones out
8. Exp 1

Then use 3.5mm for MIDI in/out, or just MIDI over USB/BT. USB-C instead of USB-B.

that's what I am thinking , they could ditch the XLR second input , second exp pedal
realistically I will be surprised if they keep captures , I think it will allow you to load but the ability to make captures maybe be reserved for QC
and removing that feature alone would allow them to wipe a bunch of I/O

 

[MirrorProfiles]

Audio (as in analog) over ethernet would be interesting to save space, can get 4 channels of audio that way. On something flagship and rackmount like the Axe FX I’d honestly be happy with dsub for (at least some of) the I/O

 

[mbenigni]

To expand: both the FM9 and Helix sometimes need a Morley Hum Eliminator in my 4cm setup, whereas the QC didn’t.

“Just plug shit into them!”

 

[DrewJD82]

I've only got excess noise on the Red channel of my EVH when using the FM9 in 4CM with it, the Shiva and Electra Dyne are quiet as a mouse. I do believe the absurd amount of gain on the Red channel is the culprit because the Blue/Green are fine. Nothing a noise gate won't handle, but fortunately, no electrical humming.

 

[Jynx]

I'm at that phase of late where I'm gone waay past option paralysis and into use the same shit almost every time.

 

[Mongillo19]

I'm at that phase of late where I'm gone waay past option paralysis and into use the same shit almost every time.

Can't have option paralysis if you don't have options

Joking aside, that's awesome you've found what works for you. What plugins are you hoping get ported next?

 

[metropolis_4]

Some of you keep forgetting there are guitarists who still use their gear to play live shows.

On a separate and unrelated topic: I just watched someone using a QC for a live show yesterday and it sounded awesome in the house

 

[Mongillo19]

I just watched someone using a QC for a live show yesterday and it sounded awesome in the house

I don't think anyone here has said the QC sounds bad