NMD: NDSP Quad Cortex

Enjoy your new device :chef

Easy to use, looking sexy, sounds good ( most of the models as well )
And I agree with you on the captures, I love that it`s just Gain, Bass, Mid, Treb.. easy and it sounds good.

Having had mine for 2 years, it still works and the future looks bright
 
Have you been using it with a guitar cab at home? If not, be sure to turn off those CAB blocks on the QC. (y)

Yes, for sure, thanks.

Any tips about setting levels?

Unfortunately the ISP Stealth Pro amp doesn’t have a clipping light, like if you’re clipping the input.

I have the QC output set to +4dB for line level and its physical volume knob disabled, and I’m using the overall level control on the amp model (not amp model master, but overall level) to control volume. ISP is set around one o’clock.

Which is basically how I ran the FM9 the last time I tried this. But I did wonder afterwards if I’d been clipping the input of the ISP amp, in order to get the volume high enough.

Wondering now if I should have the ISP higher than one o’clock, so I need less from the QC itself?

The ISP is rated 180W into 8 ohm and the cab is a 240W 4x12.
 
Yes, for sure, thanks.

Any tips about setting levels?

Unfortunately the ISP Stealth Pro amp doesn’t have a clipping light, like if you’re clipping the input.

I have the QC output set to +4dB for line level and its physical volume knob disabled, and I’m using the overall level control on the amp model (not amp model master, but overall level) to control volume. ISP is set around one o’clock.

Which is basically how I ran the FM9 the last time I tried this. But I did wonder afterwards if I’d been clipping the input of the ISP amp, in order to get the volume high enough.

Wondering now if I should have the ISP higher than one o’clock, so I need less from the QC itself?

The ISP is rated 180W into 8 ohm and the cab is a 240W 4x12.
When I had mine, I did find the output level to be much lower than other modellers.

One guy on the official forum told me to use balanced cables in order to benefit from a +6dB boost, but I never tried it.
 
The QC sounded and felt great at practice! I switched between a factory Tremoverb capture and the BE100 model.

I was able to get decent volume, but I did have the 180W ISP power amp almost maxed out, at around 4 o'clock. I could have increased things on the QC output, although I don't really get how it's set up on that end, yet. It doesn't have separate settings for instrument or line level, just a single level control, that also doesn't seem to match up with what it's set as. For example, if I set it to -10 dB and run it in the loop of my Electra Dyne for 4cm (tried that last night), it's way too low and far below what instrument level would be. Leaving it at 0 seems to be actual instrument level, so I'm wondering if line level would then be +14 on its setting?

Anyway, regardless, if I want to be truly happy in that big room and setting, I'd need a MUCH bigger power amp than the ISP. While it was somewhat close to loud enough, it had no headroom and no size/girth/punch, etc, to the sound; it had that "maxed out" feeling and was all mids, no low end or treble. Felt like maxing out a 30W tube amp, really. In a smaller space, at lower volume levels, it would probably be okay, though.

(And yes, I could try the effects return of the Electra Dyne - which I've done with my FM9 and it sounded okay but I didn't love it - but if I'm bringing the Dyne somewhere then I'm going to use it on its own, as it's my favourite over everything else, anyway.)
 
Last edited:
The QC sounded and felt great at practice! I switched between a factory Tremoverb capture and the BE100 model.

I was able to get decent volume, but I did have the 180W ISP power amp almost maxed out, at around 4 o'clock. I could have increased things on the QC output, although I don't really get how it's set up on that end, yet. It doesn't have separate settings for instrument or line level, just a single level control, that also doesn't seem to match up with what it's set as. For example, if I set it to -10 dB and run it in the loop of my Electra Dyne for 4cm (tried that last night), it's way too low and far below what instrument level would be. Leaving it at 0 seems to be actual instrument level, so I'm wondering if line level would then be +14 on its setting?

Anyway, regardless, if I want to be truly happy in that big room and setting, I'd need a MUCH bigger power amp than the ISP. While it was somewhat close to loud enough, it had no headroom and no size/girth/punch, etc, to the sound; it had that "maxed out" feeling and was all mids, no low end or treble. Felt like maxing out a 30W tube amp, really. In a smaller space, at lower volume levels, it would probably be okay, though.

(And yes, I could try the effects return of the Electra Dyne - which I've done with my FM9 and it sounded okay but I didn't love it - but if I'm bringing the Dyne somewhere then I'm going to use it on its own, as it's my favourite over everything else, anyway.)

PS100, accept no substitute.

car drifting GIF
 
I wonder what the next update will be outside or the plug-in and Cortex control anyone heard what new devices they are working on ?

All I have seen was the announcement of there is no update or anything new to report
I am guessing they will release one before the end of the year along with a few new plug in ports
 
Congrats. The QC is a badass piece of gear. I agree with almost all of your initial thoughts.

Modeling: I don’t think their modeling is light years behind something like the Fractal. The very brief A/B’ing I’ve done (the path to madness) they hold up relatively well. They just are never going to catch up in the sheer volume of amps, and I don’t think their modeling approach will lead to some of the deep tweaking options.

UI: Pretty much the gold standard at this point. Using it is an absolute breeze. It actually makes complex routing and integration with other gear extremely straightforward. This they absolutely nailed.

Effects: I think this is the weakest part of the platform. If you’re not too hardcore of an effect degenerate and don’t A/B they are perfectly functional, but honestly half of their delay and reverbs are kind of rubbish. Some I’m not even sure what they are actually doing. The octave and freeze are great though, and I like a lot of the drives. They should focus a lot of dev on effects imo.

Captures: Def some good ones, I’ve just never been a huge capture guy. I trust those that do though, so I could totally see this as being the primary selling point of the unit + UI.

I also think their wireless integration (when it works) is badass. Wireless updates and capture/preset downloads are awesome. All modelers need these features (plus an equivalent UI)

Rock on dude :headbang

Thanks! Agree on all points.

As for effects, I'm not a big effect maniac, and so far I've not found anything lacking other than the Uni-Vibe (which is still usable and WAY better than Kemper's). And that's just a once-in-a-while thing for me, when I want to get my Hendrix/Trower on. Not make or break at all. I'm still really liking the Phase 90 a lot better than Helix's, and I'd even say it's pretty much as good as Fractal's.

As for delays, all I ever use is Tape Delay, with the odd Analog, and I like both of the QC's a lot. I actually like QC's tape delay better than Fractal's, though not as much as Helix's Transistor Tape, which is still my all-time favourite. I can totally see how someone hugely into delays would be very underwhelmed, though. Helix and Fractal absolutely slay the QC delay-wise overall, no contest.

I actually think the QC drives are fantastic. I immediately found what I need, which is two flavours of boost in their Blues Breaker and SD1 models. I use these to boost a crunch tone though, I'm not a pedals-as-your-whole-drive-tone guy. My main drive is always from the amp, be it tube or a model.


Footswitch inflexibility was one of the many small things that formed a "last straw" in aggregate that broke my QC back....

Yes! I can't believe you can't choose the colour of the switches/LEDs in Stomp mode. Like, if you have multiple effects assigned to one switch, it's auto-chosen as white and there's nothing you can do. I often put an EQ/volume boost+delay on one switch for solos, and like it coloured red, but I'm forced to have it be a white LED.

And, it sounds silly, but one of the pure-simple-fun aspects I always enjoyed about digital units - going back to my first HXFX that was the gateway into all of this - is assigning multiple things to single switches and choosing a colour, naming it, etc. I always love that part of the process and it just plain sucks on the QC. I hope they add this in the future, as it is a common feature request, from what I've seen.


I dont own a QC and havent used one a great deal, but I found the built in models to be basically on par with their plugins and (for me) better than the captures. I'm always a little surprised that people prefer the captures to the models, when NDSP's background is making machine learned models of real amps.

Also yes! I spoke a little early when I was talking about preferring captures over models, especially after trying the Friedman model. Also, in the end, I do much prefer having the fine-detail control a model gives, especially when going from one physical environment and musical setting to another, ie. from jamming in my basement to playing loud with my band. A capture that sounds great at home might not work with the band, and the limited editing control of captures does make me nervous. Still open to trying them, though. Love that with the QC I can try both.

When I had mine, I did find the output level to be much lower than other modellers.

One guy on the official forum told me to use balanced cables in order to benefit from a +6dB boost, but I never tried it.

I did read that, thanks, and was using a TRS cable for my output to the ISP. I'm now thinking I need to set the overall output above +4dB for true line level, though? Still don't really get how the QC is working on that end. But ultimately the volume was decent, I just needed way more wattage/headroom.


PS100, accept no substitute.

car drifting GIF

Ah, dude, you've set the spark now.. :rofl

.
Inspire On Fire GIF by commotion.tv
 
Also, for The Good:

- while it wasn't my main plan for the QC, I've been experimenting with 4cm with my Electra Dyne, and am actually quite pleased with the results; it sounds and feels great
- still not as good as analogue in front + Stomp In The Loop™ , but pretty great overall and better than my experiences with the HX line
- it does have pretty high level/volume from Output 3, which slams the front of the amp pretty hard, adding a lot of gain, so I found dropping that by 2-3dB put it more along the level of just plugging straight into the amp

- no ground loops when used in 4cm, this puts it ahead of the FM9 for me, which while awesome and still probably the best in 4cm, had a huge ground hum and required buying a Hum Exterminator in order to be useable

And to add/confirm to The Bad:

- yes, the upper switches are extremely close to the bottom ones; I was often hitting the top far-left switch along with the bottom one by accident, when going for a solo; didn't happen as much with the middle switches; hopefully I can just learn/teach my feet to avoid doing this
 
Okay, this is AWESOME!

I made a capture of my beloved Keeley Fuzz Head and it sounds identical. Crazy, really. Like, indistinguishable. Same for my MXR Custom Modified Badass OD.

These two pedals aren't modelled anywhere and I've always had to either still use the real pedals or "make do" wth something similar but not the same, especially for the Fuzz Head, which is a really unique fuzz/OD hybrid. The CBMOD is basically an SD1 with EQ options, but it has a 'Bump' mode that I'm hooked on and haven't been able to quite replicate with Fractal or L6. These captures totally nail both pedals, love it. (And it was super easy to do, worked perfectly the first time.)
 
Okay, this is AWESOME!

I made a capture of my beloved Keeley Fuzz Head and it sounds identical. Crazy, really. Like, indistinguishable. Same for my MXR Custom Modified Badass OD.

These two pedals aren't modelled anywhere and I've always had to either still use the real pedals or "make do" wth something similar but not the same, especially for the Fuzz Head, which is a really unique fuzz/OD hybrid. The CBMOD is basically an SD1 with EQ options, but it has a 'Bump' mode that I'm hooked on and haven't been able to quite replicate with Fractal or L6. These captures totally nail both pedals, love it. (And it was super easy to do, worked perfectly the first time.)
Is that Keely Fuzz Head public on the cloud, by any chance? :)
 
Okay, this is AWESOME!

I made a capture of my beloved Keeley Fuzz Head and it sounds identical. Crazy, really. Like, indistinguishable. Same for my MXR Custom Modified Badass OD.

These two pedals aren't modelled anywhere and I've always had to either still use the real pedals or "make do" wth something similar but not the same, especially for the Fuzz Head, which is a really unique fuzz/OD hybrid. The CBMOD is basically an SD1 with EQ options, but it has a 'Bump' mode that I'm hooked on and haven't been able to quite replicate with Fractal or L6. These captures totally nail both pedals, love it. (And it was super easy to do, worked perfectly the first time.)
I've found capturing devices do better at distortion style fuzz. The big issue is volume roll back and clean up but I think thats more FF
 
Is that Keely Fuzz Head public on the cloud, by any chance? :)

I think it's there? I just copied it over. Let me know if it doesn't work!

My account name is TubeStack and the capture is called FuzzHead1.

Also, it's meant to boost a crunch channel, doesn't sound like much on its own.
 
Back
Top