What creates the effortlessness in sound reproduction?


Hello, 
I have a chance to listen some speakers in the last 10 years. I notice that there are 2 speakers which produced sound 'effortlessly', even at low or high volume levels (I never tried max levels on them since they are not mine). With this effortlessness, listening to music is very relaxing. 

I wonder what makes the effortlessness in these speakers? 

Please shed some light on this. 

Thank you. 
Huy
quanghuy147

Showing 1 response by avanti1960

Effortless sound comes with a proper amplifier match to a given set of speakers.  
Obviously HE speakers need the least amount of quality power to deliver fast, responsive effortless sound without strain.  
Yet typical low efficiency dynamic box speakers can also sound effortless with the right amplifier.  
My 86db large british monitors sounded exceptionally dynamc and effortless being driven by a high current Bipolar transistor amplifier with 300 WPC.  The results were literally startling.