I'm not sure your question is about spkrs sensitivity (db spl/1W/1m) or frequency response or power response.
Generally speaking, spkrs that spec over92db "sensitivity" will play plenty loud with your amps (they'll reach ~115db spl peaks -- if they can take that power).
If OTOH you want speakers to play an extended frequency range i.e., "soaring extended highs, warm, life-like mids' and bass from the bowels of the earth" you'll need a subwoofer -- or similar setup. You can come close with a number of stand alone spkrs, but you won;t actually get there...
Some manufacturers offer models that incorporate a separately amplified bass section -- which can effectively help you attain a "full-range sound. Genesis, the expensive VS, Vandersteen, many others. These tend to be expensive (over 10k). The Genesis 6.1 I listened to recently were quite nice for less than 10k.
BTW, how big is your room?
Generally speaking, spkrs that spec over92db "sensitivity" will play plenty loud with your amps (they'll reach ~115db spl peaks -- if they can take that power).
If OTOH you want speakers to play an extended frequency range i.e., "soaring extended highs, warm, life-like mids' and bass from the bowels of the earth" you'll need a subwoofer -- or similar setup. You can come close with a number of stand alone spkrs, but you won;t actually get there...
Some manufacturers offer models that incorporate a separately amplified bass section -- which can effectively help you attain a "full-range sound. Genesis, the expensive VS, Vandersteen, many others. These tend to be expensive (over 10k). The Genesis 6.1 I listened to recently were quite nice for less than 10k.
BTW, how big is your room?