I loaded the Scumback M75 into my 1x12 cabinet after work tonight.
Compared to the driver I already had in there (Carvin Vintage British 100W), I noticed several physical differences: The cone has a much steeper incline, as well as going deeper into the gasket; the voice coil is much smaller as is the dust cap; the Scumback weighs perhaps 10% more than the Carvin.
Sonically, there is no comparison. The Scumback
NAILS the 70s hard rock/early metal tone. It is extremely tight and tuneful. I also noticed that there was very little tonal difference when listening off-axis as opposed to straight on. This speaker just has gobs of everything; it was also extremely responsive to any changes in EQ, gain, and volume.
This speaker, simply put,
will not break up and no matter how hard I hammered it, never got brittle, spitty, chuffy, wooly, or any other negative side effect I've had from cranking a single 12".
Even with the TB smashing the clean channel, as you can hear, open and barre chords retain their clarity.
Here is a quick clip I made:
http://www.soundclick.com/util/getplayer.m3u?id=6708338&q=hiSignal Chain is:
VHII loaded tele ... 1970s NOS JAX curly guitar lead ... Thundertomate Phil Hilborne Treble Booster ... Splawn Quick Rod (1st gear, clean channel) ... Audix D2 approximately 2" off axis and 3" away from the grille ... no EQ, compression or audio fiddling done after the fact.
If you are looking for a speaker to nail classic rock tones of yore, or or a modern player who craves a vintage speaker, look no further than the Scumback.