That wouldn't make sense in any case as the curve is the combination of speaker and cabinet.it doesn't bother me in the least that there are fewer speaker impedance curves than IRs
The only downside I see is that it would make it more complicated to make IRs of one's own speakers....I see doing this better more as a next gen feature.
IMO the current top tier for cab simulation is plugins like ML Sound Lab MIKKO that let you move multiple microphones around a virtual speaker. The way it works is that it blends together a large matrix of IRs as you move the mic around. You can blend different mics, different cabs etc without dealing with stupid file browsers. Quad Cortex has a simplified version of this (one mic per speaker, two speakers or mics in a cab block) and it greatly simplifies getting your preferred sound out of a specific cab and takes out the trial and error.
If Fractal implements something similar for its stock cabs in the next gen Axe-Fx, having the amp model impedance curve follow the cab block speaker selection becomes a more feasible feature as each cab is no longer "this big list of different mics/positions" but "this cab/speakers". Of course this becomes trickier when dealing with non-cab sim situations so having the impedance curve selection in the amp block is still the right place, but for cab sims at least it could be automated to select the appropriate curve.
It does kind of fascinate me that not only does the cab play the amp a little in the real world, but the room itself must also have an effect too. I'm guessing it's pretty small and difficult to measure, but I tend to think of the room playing the amp as well as the amp playing the room nowadays. This came down to my questioning low frequency resonances from my Axe FX III rig in my studio with a Fender Princeton Reverb model, and I thought they just couldn't be that loud from a 12 watt tube combo with a 10" speaker. So I dragged my PR into the room, and guess what? Same frequencies exactly resonated at deafening volume!
Liam
Me too. Until there is enough processing power or preset data storage for a compound curve of all the active IRs' ICs to be saved as cab data (to be used by the amp block in determining how the amp should react to it/them), it makes sense to be where it is.I guess I'm in the minority as I don't really care where it is.
Had the idea of combining the amp and cab blocks. Then the division of functions would be moot. The no-cab folks could use a flat response IR....
The impedance function is a property of the relation between amps & cabs. If we want to model reality, the function must be linked to the cables/shunts! And is the result of a function, with the functions of cabs & amps impedances as variables.Ideally the cabinet block would define the IC
The impedance function is a property of the relation between amps & cabs. If we want to model reality, the function must be linked to the cables/shunts! And is the result of a function, with the functions of cabs & amps impedances as variables.
Hi, apologies for the question, but is the IC a property of the cabinet, or the actual speakers (or both).
I ask because the 2x12 Class A 30W IC makes no mention of speaker (greenback or Alnico), yet there's another non AC30 IC "2x12 Guy Tron Alnico Blue" IC that says "Alnico Blue".
If I'm using an 2x12 AC30 Alnico blue IR, do I use the default Class A 30W IC or the Guy Tron Alnico Blue one?
If the former, was the cab used for the Class A 30W IC loaded with greenbacks or alnicos?
I run the "totally flat" Cab IR with my SS Amp + Real Cab - totally transparent but adding the ability to low/hi cut my real cab (+ IC if it was there), and allows switching over from FR to real cab without having to turn off cab modelling or footswitching off the cab block (just switch cab block channel).
What about a lookup table: IR#, Impedance curve #?I can understand the approach to simplify things well, but would not give up the flexibility for this.
Fractal Audio builds professional products that also have a certain claim to deal with it. The forum, the wiki and many good people help to understand unclear things better.
How can a solution look like?
Currently, with the AMP block, the appropriate IC is selected when choosing an amplifier. This should remain basically so that all presets with and without CAB can be used without problems.
With the IRs integrated in the FW, I could imagine that FAS manages to assign a suitable IC. So for F1, F2 and L.
If I now edit a new preset with CAB or an existing one and select a factory IR, then and only then the IC in the AMP block is changed accordingly.
With the user IRs it is not so easy to realize an automatic link because there is no information in the IR.
So a link would have to be determined by the user. This would mean that when importing an IR I have to determine the appropriate IC. So the CAB Manager offers itself for this in future.
If I do not determine an IC for the imported IR, the selected amplifier in the AMP block determines the IC. So now actual.
However, this does not solve the problem if I have several IRs that may use different ICs. I wonder how realistic it is to operate an AC30, for example, with 2 or 3 different CABs (loudspeaker configuration) at the same time, which does not work so easily in the real world. But I am also more for a classic placement. But everyone should find his part here.