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I got this idea from a YouTube video of a guy who wired this same amplifier into a Marshall Cab and was pretty impressed with the sound from that demo. I still had mine laying around so I did the same thing and plugged it into the 1x12 I'm making (Jensen Mod) and was even more impressed than I expected with the result. I went ahead and removed the amp portion from the original housing and slapped together my own housing with a speaker out jack.
Edit: I don't know why the photo keeps showing up sideways for me, i tried to rotate it and upload again but that hasn't fixed it. Apologies for this...
Often these little practice amps are better than you think, but are held back by the stock speakers and cabinet. I got a Fender 15G free when I bought a guitar years ago. Recently, I populated the circuit board for reverb, added a spring tank, and swapped in a Celestion speaker, and it's now pretty good.
But a few weeks ago I ended up with another free Fender 15G! This time I think I'll build a new cabinet for it as well as adding in the reverb.