To add.. Here are some useful tips and suggestions they offer on their website (kinda buried). Pay special attention to the combining impulses suggestion.
If you need one general rule for all mics then you should probably start on the CapEdge at 1", then dial in from there.
These won't always work right off the bat, and you may find yourself surprised by what sounds good, so play around with the placement. Here are some tips:
* Move the mic closer for more proximity effect and thus more low-end. This will balance out the highs you get from being closer to the cap or overwhelm them in some cases and skew the balance.
* Move the mic farther away to thin it out. This works well for clean guitars & "bassy" amps.
* Move the mic towards the cap for more high end, or "definition" if it sounds too muddy
* Move the mic out towards the edge of the cone if you're getting too much high end or it sounds too harsh.
* If it sounds too bright, sometimes it'll work to leave the mic where it is and just flip it off axis. It will roll-off the highs and depending on the mic give it "grainy-er" sound.
* Try blending multiple close mics. The IRs are time-aligned so you can mix a 2" mic signal with a 0" mic signal and not have to worry about phase coherence. Try mixing an SM57 for some bite and an R121 for the beef. Or try a 421 with an R121 for the same effect with more cut and less midrange bite.
* Try blending in the room mics, the the back of cab mics, and the mics placed farther back for a more 3D sound
In short, if you use these guidelines and just start playing around you should quickly find many combinations that will work for you. No more applying dangerous amounts of EQ to try and get your IR'ed tracks to sit in the mix.
Good luck and have fun. We hope you find our speaker impulses useful. Feel free to send us samples of your work!
