harddriver
Well-known member
Not my video but a cool comparison video using a St. Rock load and IR.
Yeah the JMP/SD1 is way more focused and the other two just sound bigger/wider. I've been messing with a JMP/SD1 combo a lot recently and its just on the verge of being a little honky in the mids. Altho my SD1 isn't an old MIJ one.I think the SD1 in front of the JMP is really skewing things when compared to going straight into the other two amps, which both sound twangier and looser since the signal hitting the front end isn't being heavily band-passed beforehand. Nice tones all around though
Here's another comparison...the above videos was a St. Rock load boax IR setup. The following videos are from a board member LittleB in these clips is a mic'd Greenback speaker using an SM57 and Royer R121. While the IR's don't sound horrible the actually mic'd speaker does seem to have more dynamics to the tone.
Here's another comparison...the above videos was a St. Rock load boax IR setup. The following videos are from a board member LittleB in these clips is a mic'd Greenback speaker using an SM57 and Royer R121. While the IR's don't sound horrible the actual mic'd speaker does seem to have more dynamics to the tone.
An IR file by definition captures the decay time at all frequencies, so it does indeed affect dynamics. It doesn't replicate compression or saturation though, as you say, which is what I said in my above post. Some of the IRs on the market are captured very badly (some are essentially non-dynamic match EQs), but a WELL captured IR can convey resonances extremely accurately, since that's essentially what they are designed to do.The words dynamics and compression are frequently misused and misunderstood in my experience. Here's a fact I've not seen mentioned - IR's cannot, and do not, induce compression or affect dynamics. An IR in this context is just an EQ curve, and nothing more. If you had a high quality analogue parametric EQ with a few dozen bands you could fairly closely replicate a digital IR.
A poorly designed or underspec'd load (or something else in your chain) is the culprit if you're noticing a change in dynamics, resonance or feel - whatever the hell this means to you.
I feel your thoughts and breakdowns.Word to the wise, a well captured IR will usually be MORE dynamic than a speaker, because it has essentially infinite headroom where the real speaker compresses as the cone tries to replicate all the frequencies/amplitudes being demanded of it. I think you're hearing the proximity effect bump of the Royer (which would be captured in an IR too) and attributing that quality to the fact it's a real mic'd cab.
It also sounds like the mics are in a different, brighter, position for the Marshall clip than the Morris.
I'm talking the typical short IR's used to capture a guitar cab - decay time doesn't remotely enter into. So I'll stand by my statement, dynamics are not a factor at all.An IR file by definition captures the decay time at all frequencies, so it does indeed affect dynamics. It doesn't replicate compression or saturation though, as you say, which is what I said in my above post. Some of the IRs on the market are captured very badly (some are essentially non-dynamic match EQs), but a WELL captured IR can convey resonances extremely accurately, since that's essentially what they are designed to do.
Hah, thanks!I feel your thoughts and breakdowns.
By feel, I mean agree.
I bet you’d be a fantastic therapist, I’m serious!
I mean no offense, that’s rad man!
How long do you think the decay time of a guitar cab is? How long would an IR need to be to capture authentic dynamics of a cab, in your opinion?I'm talking the typical short IR's used to capture a guitar cab - decay time doesn't remotely enter into. So I'll stand by my statement, dynamics are not a factor at all.