Yup we lined up 4 cabs loaded with all types of speakers... we settled on the greenback and V30 blend, as being the best. It’s a terrific little cab, looks great, manageable size, and the speaker blend gives you options for miking. As far as FRFR, I’ve so far only tried plugging into a dynaudio BM5 studio monitor. Sounded awesome at practice volume! Of course this isn't really any different than me plugging into my UA interface and hearing the amplifier through my Adam or Barefoot studio monitors which I do every day! If anyone’s interested- There’s a couple more vids I’ve put up on my channel this week- Matthews reverb, and a Keeley Fuzz- where I’m using the amp.