Load/IR box with Tube Amps Vs. Modeler

So here's a question to take things yet again in a Slightly different direction lol.
If the load box is simulating the power section of the amp (which I'm assuming this is the case yes ?) and the IR's are handling the cab ,does the difference in amp wattage come into play as much ?? (Ie are you going to get similar results with a little 20 water as a big 100 watter ?) I mean , is the load box essentially turning the amp into a 'preamp' at that point ? (Again , never tried this type of setup tube amp/load box)
A reactive load doesn't really simulate the power section of an amp. It just simulates the reactive resistance a speaker presents, vs a flat resistive load. It tricks the amp to think it is being plugged into a speaker.
 
The impedance curve of any given cab is a measurement of how freely the speakers in that cab will resonate at any point in the frequency spectrum.
So when we talk about an impedance curve for a load box, what does that mean? I had thought it basically meant it "Felt" (Electronically) like a given speaker to the amp. Didn't realize it includes the physics of the speaker moving in a cabinet as well, or am I misunderstanding? ...Anyways, my point was that whatever is going on, my amp through a load box into an IR doesn't sound like my amp into my cab.
 
A reactive load doesn't really simulate the power section of an amp. It just simulates the reactive resistance a speaker presents, vs a flat resistive load. It tricks the amp to think it is being plugged into a speaker.
yes
 
So when we talk about an impedance curve for a load box, what does that mean? I had thought it basically meant it "Felt" (Electronically) like a given speaker to the amp. Didn't realize it includes the physics of the speaker moving in a cabinet as well, or am I misunderstanding? ...Anyways, my point was that whatever is going on, my amp through a load box into an IR doesn't sound like my amp into my cab.

With the RL your amp thinks it's seeing a load. In the case of the Suhr RL, it makes your amp think it's seeing Celestions in a 4x12 cab.

An IR won't magically sound like your amp running through your cab. An IR is just a snapshot of someone else's cab recorded at one single point in time through whatever mics it was recorded with.

So for example, I have a cab with an Alnico Gold in it and I have it in my amp closet close mic'd with a Royer 121. I found an IR of a cab with an Alnico Gold in it mic'd with a 121 and the recorded results were very similar. The IR was a little better even so I moved my 121 around and found a better sweet spot. Using th IR actually stepped up my real life micing game.

If your experience is that your amp through a load box through an IR didn't sound like your amp through your cab, you probably used an IR too different than your actual setup. Or maybe you were expecting to hear what you hear in the room with an amp. IRs only sound like your mic'd amp. Totally different thing what your ears pickup vs an SM57 close mic'd.
 
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A reactive load doesn't really simulate the power section of an amp. It just simulates the reactive resistance a speaker presents, vs a flat resistive load. It tricks the amp to think it is being plugged into a speaker.
Ah okay gotcha ....so a 15 watt will still sound like a 15 watt and a 100 will still sound like a 100 👍🏻
 
I'm new to using LB...
I recently bought a St Rock React II.
It sounds amazing with the York Audio..
But I have a lot of basic questions...
Would it be advisable to go from the LB through mic preamps? (capi vp28) or would it color the simulation incorrectly?
 
Ah okay gotcha ....so a 15 watt will still sound like a 15 watt and a 100 will still sound like a 100 👍🏻
It will just sound the same as the amp plugged right into the cab. However, now you have the flexibility to send that signal into a poweramp, or computer, or IR, or whatever.

One thing I like to do it run my tube amps through a reactive load, and then take the line out into a stereo effects unit, and then back into a solid state poweramp. All your tube tone, in stereo, with stereo effects, at whatever volume you want.
 
I'm new to using LB...
I recently bought a St Rock React II.
It sounds amazing with the York Audio..
But I have a lot of basic questions...
Would it be advisable to go from the LB through mic preamps? (capi vp28) or would it color the simulation incorrectly?

If your goal is to record good guitar tones, definitely go through some kind of preamp from the LB. Coloration is a good thing. It's why we buy these pres.
 
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