Selfmade 2x12 and Foam test (with samples)

[::XeS::]

Ok guys...finally I have the time to do some test of my selfmade 2x12.
It's also my first attempt to mic a real cab so there are some mistakes and some sloppy playing (I recorded in my garage and here now we are near 0° C)..
I used my Schecter C1 with EMGs through my Engl Savage 60. Mic isa Shure sm57 on axis pointed to the edge of the cone.
Anyway, I did 6 samples, 2 with no Foam at all inside the cab, 2 with Foam only in the back panel and 2 with Foam in every side of the cab. Every couple of sample are 1 with Depth Boost on and the other with Depth Boost off.
The Clips are little different because I recorded without monitors and without click.

NO FOAM - DEPTH ON
http://www.sneapforum.celtiaproductions.co.uk/XeS/1-No Foam_Depth Boost.mp3

NO FOAM - DEPTH OFF
http://www.sneapforum.celtiaproductions.co.uk/XeS/2-No Foam_No Boost.mp3

BACK FOAM - DEPTH ON
http://www.sneapforum.celtiaproductions.co.uk/XeS/3-Back Foam_Depth Boost.mp3

BACK FOAM - DEPTH OFF
http://www.sneapforum.celtiaproductions.co.uk/XeS/4-Back Foam_No Boost.mp3

ALL FOAM - DEPTH ON
http://www.sneapforum.celtiaproductions.co.uk/XeS/5-All Foam_Depth Boost.mp3

ALL FOAM - DEPTH OFF
http://www.sneapforum.celtiaproductions.co.uk/XeS/6-All Foam_No Boost.mp3

I analyzed all the samples with IXL plugin and I saw that the more you add foam inside the cab, the more you cut the "super low" frequencies (from 0 to 60Hz).
Moreover, when I add the foam in the back panel, the projection increased a lot and also the volume (1dB/1.5dB RMS) and you can notice that in the clip3, where there are lot of clips. The following samples don't clip because I lower the Firepod pre of 1 little step.

The samples are not my best, probably there is too much gain, but I hope you can notice the difference with the different foam layering.
Today I will record some sample with new tubes... KT77!

 

[VH100R]

interesting test.

could you post the analyzed waveforms?

take care

 

[::XeS::]

Yeah shure.
Monday I will post all the IXL's waveforms.

 

[VH100R]

thanks

 

[doc_backmask]

Could you post the plans for your cab? I think I may take a stab at making my own 2X12 as well (no head yet, but maybe a cab will inspire me).

 

[Nebulous]

I'm assuming that you'd have had to move the cab between takes to install the foam, so the mic placement would be different for all clips yeah? Like, not 100% exact? Also, were these re-amped, or played each time?

 

[::XeS::]

No I didn't move the cab, the mic was in the same position. No reamp, I played each time..so the clips are little different