Well that was interesting! This is what I did to test the speakers: Amp settings 5W mode (master out), Master 5, Edge 8, Bass 7, Mids 10, Treble 7, Gain 6, Loop off
I tried a Greenback G12C 1x12 16 ohms, the Creamback G12H 1x12 8 ohms, Greenback G12C 2x12 8 ohms and Greenback G12C 4x12 16 ohms. I used a Zoom H1 mic 3m back from the Cabs.
Firstly the Astoria Custom sounded excellent through all 4, just different. Secondly the volume level was really interesting. The loudest volume perceived by the Mic was the Creamback - very slightly louder than even the 4x12 which surprised me. I guess this is down to speaker sensitivity and efficiency together with the fact that the power is shared between a different number of speakers. The 4x12 sounds fuller with much more bass and lower mids. Being closed back too, the 4x12 obviously sounds fuller in the low end than the open back cab.
Comparing the G12C and the G12H 1x12 helped me decide not to change the stock speaker in the Astoria Cab. The Creamback is louder, clearer and more articulate than the single Greenback.
The real difference between the sounds is in fullness. I liked the 2x12 but it was less clear and articulate than the Creamback.
After I had finished the experiment, I thought I would try a weird combination of the Creamback 1x12 and the 2x12 Greenbacks together so 2 8ohm cabs. This sounded excellent, preserving the open and articulate Creamback sound with an fuller Greenback sound complimenting the Creamback. Seems weird having 3 speakers not 1, 2 or 4 but it seems to work.
There are so many variables in an experiment like this that it gets complicated and ends up about opinion as much as anything. For example, I could have turned up the amp to get the same volume from the 1x12 Greenback making the map sound even better with the Master higher. The G12Cs have been more broken in at loud volumes gigging than the G12H. Basically I have learned that I can gig with any combination of these speakers and it will sound great, just different and I can match the cabs to the room. The volume thing was most interesting. People see a 4x12 and expect it to blast the sound out 4x louder than a smaller cab but this isn't really true.
If I knew how to post pictures or soundclips I would!
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