I have the Gunmetal Grey FSR version of this amp that shipped from the factory with G10s instead of Ten 30s. G10s are nice with this amp, but I went with Jupiter 10LCs (50W) and found them just right. Because it was talked about in different circles that this speaker with a 10SC (25W) was righteous I obtained one, OK but did not blow my skirt up real high. To my ear it added some unnecessary fizzy highs. A few months ago I spotted a Jupiter 10LA (Alnico) on Reverb for a reasonable price in “mint” condition so I scooped it up and that is now in there with the 10LC, it works great. The 10LCs are expressive and right for this amp and I would have been totally fine there. The cost of these speakers is quite reasonable. Another speaker brand I use with regularity in my Fenders and related cabs is Fat Jimmy and a couple versions of excellent 10” are offered there. These are made by WGS to these companies specs and are worth the hype. This amp makes the scene at some of our gigs and I play it in a home studio a lot….great amp with reverb and tremelo which requires the foot pedal attached to turn on. I recommend Jupiters speakers without reservation.