The Graham speakers are an endgame speaker if you can manage without the deep bass, it does mid bass wonderfully, like hearing the bass player in a jazz recording, it sounds very nice, but the speaker doesn’t go down far below 50 in your room, but off course you can get a subwoofer or two to remedy that.
What does it do good, well for me it’s the tone and decay, the voices as you can imagine from a BBC design are just wonderful and while modern design loudspeakers can make a woman voice sound great, the Graham’s can do male voices very well indeed, they have a chest so to speak, the flow of the sound is very nice also, not too fast, something I feel speakers with metal domes sometimes sound, only my opinion off course, but I am very sensitive to especially upper midrange into the tweeter, something that made finding speakers a bit difficult, so being able to listen for hours is very welcoming and something these Graham’s do excellently.
They are monitors, so you can expect un amplified instruments to sound very life like, violin and piano or an acoustic guitar just sound sublime, they are not heavy metal speakers, although playing uptempo rock works great and gets your feet tapping, but you can probably find much more satisfying speaker for that.
While writing this I have been listening to several rendition of Erbarme Dich, what a treat, several because I stop to write all the time 😝
Just remember that Graham Audio Speakers as all BBC design use thin wall cabinets and you sometimes can hear that in the bass, but it is not something I mind, I look at my speakers more like an instrument and I am truly smitten with them and I would only sell these for a bigger model in the Graham lineup.
If you have a nice dealer and can try them at home, that would probably be preferable as this design of speakers don’t give you the big wow straight away, but when you have listen for a while you will come to the conclusion that somehow they just sound right, at least that happen to me.
Good luck.