Quick and dirty test in wooden summerhouse, cranked the A30 up to 48 (not sure what it goes up to), but the SPL meter app on my iPad showed 90db 3m (9ft) from speakers.From what I read they are both not particularly efficient speakers, but not inneficient neither. How close are you to your bookshelves? This kind of power is suitable for desktop/nearfield setup, very small room, or if you like quiet listening
Loud enough for me.