Don’t have experience with Harbinger, but Roland is the most affordable and still good sounding keyboard amp IME.
FWIW, I was considering a pair for floor monitors, and was steered to a pair of Mackie Thump 12s. I am very pleased with the Thumps.
For home use with my little Casio, I use a pair of GC's Acoustic Control AB-50 amps, designed for acoustic bass. Good little utility amps; I've run guitars, bass, keys and drum machines through them.
The Harbingers should be okay for home practice, but I'd be leery of pushing them hard at a club gig. Keyboards are demanding on an amp and speakers.
Bill
I would probably want to bump it up to at least an Alto - https://www.musiciansfriend.com/pro-audio/alto-ts312-12-2-way-powered-loudspeaker
I would probably want to bump it up to at least an Alto - https://www.musiciansfriend.com/pro-audio/alto-ts312-12-2-way-powered-loudspeaker
I was gonna suggest that too. Again - depending how loud, the ts212 might work fine.
if you want a louder stage volume, they don't work- they can't compete with a dedicated guitar amp for sheer volume.
Just pulled the trigger on the JBL for $279.20
Just pulled the trigger on the JBL for $279.20