Currently have an LSS 1x12 and a 5:25 1x10
am about to get an LSC in 2x12 format
To answer some of your questions
I demoed the Ace Combo, loved it, thought it picked up right
where the LSS leaves off. I think the LSS stops at thick medium
overdriven tones, SRV, don't think it is that great for high gain.
While the Ace has a good clean, it has a great overdrive, that
turns to killer gain with the fluid swith on channel 2. seems to
get everything in between
Can definately justify owning both
I bought the 5:25 cuz it is a great home amp with the 10 inch
speaker, Can get a louder sound, without it being much louder
Great 5 watt warm on channel one, and a bit tighter gain on
channel 2 than the LSS. This kind of can justify an LSS and 5:25
but it's pushing it
I'm actually about to pick up an LSC in 2x12 cuz the clean is
awesome, and with the 10 watt class A, and the tweed setting
you really get a whole slew of awesome tones.
Probably going to keep the LSS and LSC and oddly enough
part with the 5:25
Definately think you could own an LSC and LSS
specially with diff speaker configs, and diff types of speakers.
Had a Celestion Blue in the LSS, makes is sound like a Vox
Now have a Weber Blue Dog, this amp sounds quite a bit
diff than the LSC with 2 C-90s
If you want your EL-84 to be tighter for higher gain the 5:25 is the way to go, otherwise I like th LSS better
cheers