The Dual Rectifier Model Thread

Telling you… (I’m running into power amp + cab so my settings might need tweaking if your into an IR or different set up)

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Ok - did the Dual Rec in the QC, I think it's damn close what do y'all think?



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Not bad at all. Its a bit rolled off in the very top end (I think it sounds like how my recto sounds like through a load box vs cab load there), and maybe there's a bit more bass dialled in here.

Honestly, I don't think it's that bad at all and I don't really hear anything that deserves the bad rep the QC recto gets (especially bearing in mind this is a 3 channel model).

Id be curious what the MV set to like 0.7-0.9 does, as well as a smidge less bass and a bit more treble/presence.
 
Not bad at all. Its a bit rolled off in the very top end (I think it sounds like how my recto sounds like through a load box vs cab load there), and maybe there's a bit more bass dialled in here.

Honestly, I don't think it's that bad at all and I don't really hear anything that deserves the bad rep the QC recto gets (especially bearing in mind this is a 3 channel model).

Id be curious what the MV set to like 0.7-0.9 does, as well as a smidge less bass and a bit more treble/presence.
I’ll make those adjustments when I go back and try the Tremoverb!
 
Not bad at all. Its a bit rolled off in the very top end (I think it sounds like how my recto sounds like through a load box vs cab load there), and maybe there's a bit more bass dialled in here.

Honestly, I don't think it's that bad at all and I don't really hear anything that deserves the bad rep the QC recto gets (especially bearing in mind this is a 3 channel model).

Id be curious what the MV set to like 0.7-0.9 does, as well as a smidge less bass and a bit more treble/presence.
I think the bad rep comes from that MV setting. Nobody is going to intuitively drop it that low unless there’s really digging around with it, so the majority of people are like “wtf is this shit” and move on.
 
I think the bad rep comes from that MV setting. Nobody is going to intuitively drop it that low unless there’s really digging around with it, so the majority of people are like “wtf is this shit” and move on.
100% this. It's honestly pretty similar with the real amp, I think anyone struggling with the QC model would probably need to take some time with the real thing to get it recording well too. With the real amp someone is likely to run the master lower anyway, and they'll have a bit more motivation to persevere with it - with a modeller there is no real perception of how loud the amp is, and its so easy to just move onto another amp if its not sounding right. I haven't spent a great deal of time with the QC model but my friend with a QC complained about the model when he brought his QC over to me - we dialled in the QC model compared to my amp and got them pretty much identical (using a load box). From that point on he stopped using captures of rectos and just used models so he could dial them in himself. Pretty sure since then he predominantly used models over captures.

It's EXACTLY the same thing with the Helix and Amplitube models, and likely many others too. If the default master volume setting is too high, it's usually the last one most people think to address when really it's the one that sets the overall voicing for the amp. For basically any high gain amp its really critical to make sure the poweramp has enough headroom as the low end and fizz are the first things to go if things are driven too loud.


I really wanted to try and avoid these tests turning into an IR discussion but just because people are asking, this is the IR (for both 5150 and Recto tests). For the VH4 test, I used position 34 (its very slightly closer to the centre of the cone).

Screenshot 2026-02-04 at 11.33.18.png
 
100% this. It's honestly pretty similar with the real amp, I think anyone struggling with the QC model would probably need to take some time with the real thing to get it recording well too. With the real amp someone is likely to run the master lower anyway, and they'll have a bit more motivation to persevere with it - with a modeller there is no real perception of how loud the amp is, and its so easy to just move onto another amp if its not sounding right. I haven't spent a great deal of time with the QC model but my friend with a QC complained about the model when he brought his QC over to me - we dialled in the QC model compared to my amp and got them pretty much identical (using a load box). From that point on he stopped using captures of rectos and just used models so he could dial them in himself. Pretty sure since then he predominantly used models over captures.

It's EXACTLY the same thing with the Helix and Amplitube models, and likely many others too. If the default master volume setting is too high, it's usually the last one most people think to address when really it's the one that sets the overall voicing for the amp. For basically any high gain amp its really critical to make sure the poweramp has enough headroom as the low end and fizz are the first things to go if things are driven too loud.


I really wanted to try and avoid these tests turning into an IR discussion but just because people are asking, this is the IR (for both 5150 and Recto tests). For the VH4 test, I used position 34 (its very slightly closer to the centre of the cone).

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Dunno man, I ran it with the MV low when I had the QCs and that model never did it for me; the MW I had here was much better even through a loadbox. It's just something about how that model felt under the fingers which came across flat to me.
 
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Dunno man, I ran it with the MV low when I had the QCs and that model never did it for me; the MW I had here was much better even through a loadbox. It's just something about how that model feels under the fingers which feels flat.
I get that, but I think Rectifiers in general can be like that too (especially pre-MW 3 channel ones). I don't think it sounds as close as other emulations here but I also think it's not that bad compared to what the general consensus is about it.

For instance, I'm just trying to include some other Rectifier plugins to the test and the only way I can get them anywhere close is to use a shitload of EQ to simulate the effect of using a proper cab load. So many just sound and feel off because of the load, and once you compensate for that a bit (even just using EQ) it makes a huge difference to how the feel is perceived. Is it worth including these plugins if I'm doing extra processing on top? my idea was to use plugins that simulate the sort of EQ change you'd get by swapping to a cab load on these amps. Cabinetron's EQ is like this:


Screenshot 2026-02-04 at 12.01.52.png
 
With the real amp someone is likely to run the master lower anyway, and they'll have a bit more motivation to persevere with it - with a modeller there is no real perception of how loud the amp is, and its so easy to just move onto another amp if its not sounding right.
This was such a big revelation when it started coming up as a topic in discussions. Now it is pretty much automatic for me when dialing in any amp that doesn’t rely on poweramp distortion to drop the master and increase channel volume to compensate.

Understanding the quirks of particular amp and how it is typically used in real life is another layer too. The Marks are the most obvious example with their counter intuitive pre distortion EQ, but there are a plenty of amps that need treble cranked or presence off to get their signature sound. Doing the research on each amp and deep diving is usually a worthwhile - so these threads are fun to focus on the nuances.
 
MV is the first thing I adjust when I add an amp model in any modeler because the default is always much higher than I’ve ever used )or could imagine using!) IRL. I will usually drop it to about 1 or 2 and dial the rest from there. Then I might tweak the MV later if needed. I’m usually dialing for the if-I-had-this-real-amp-in-here experience though so usually through one or two FRs and pretty loud. It’s nice being back in a house where I can play loud enough to fuck up my hearing. 😬
 
I tweaked the dual rec a bit, I am not having luck with the Tremoverb model lol, ain't giving up though. For the dual rec it's hard to get that saturated fizz that you're getting with the real amp.



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have you compared the Josh Middleton to the other models?

I have a UAD Knuckles pedal on the way, maybe I could compare it to the others once it comes in
 
have you compared the Josh Middleton to the other models?

I have a UAD Knuckles pedal on the way, maybe I could compare it to the others once it comes in
I’ve compared the Multiwatt models (including Middleton) before here:



Definitely keen to hear how Knuckles fares - if you or anyone else fancies reamping through it HMU for DI’s etc.
 
I’ve compared the Multiwatt models (including Middleton) before here:



Definitely keen to hear how Knuckles fares - if you or anyone else fancies reamping through it HMU for DI’s etc.

Oh it’s a different model? I’m pretty ignorant on the different types of rectifiers
 
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I like the QC`s recto model, always sounded good. Yes, keep MV lov isj.
But I have found some good captures as well. Why not put some capture you made Dez in the list, they sounded good to :guiness
 
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I like the QC`s recto model, always sounded good. Yes, keep MV lov isj.
But I have found some good captures as well. Why not put some capture you made Dez in the list, they sounded good to :guiness
Eh, just cuz I already put my real amp through it on the first page
 
Great comparison of modeled vs original, thanks!

As a fractal FM3 user myself I'm surprised how good it sounds with bass that high, most of the patches and videos about the recto have the bass under 3 yet you have it at 6.67 and sounds great and not bloated at all (for being a recto). I guess it's your IR and also using the slant SIC instead of the straight one.
 
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