Khrs,
You must have not tried many amps on your Duettas. I used a mere 150 watt amp on those "inefficient" speakers to very good results. Good enough to have Martin Logan owner and a Quad owner enjoy them.
Only the Scintilla really fits the bill as grossly inefficient. Even so, when the Scintilla is matched with a can do amp, there are few full range speaker contenders.
That precludes the Quad - not full range.
My Scintilla does straight line down to 20db, and trails off to beyond. The mids and highs are as delicately articulated as any, while surpassing nearly all.
You must have not tried many amps on your Duettas. I used a mere 150 watt amp on those "inefficient" speakers to very good results. Good enough to have Martin Logan owner and a Quad owner enjoy them.
Only the Scintilla really fits the bill as grossly inefficient. Even so, when the Scintilla is matched with a can do amp, there are few full range speaker contenders.
That precludes the Quad - not full range.
My Scintilla does straight line down to 20db, and trails off to beyond. The mids and highs are as delicately articulated as any, while surpassing nearly all.