If you were bypassing the passive xo in the speakers than your point would be better taken. But your not.
Also, the distortion/noise added at the line level is completely different than what is created by the transducer. It is far more audible and nasty.
Finally, if you were talking about relieving a tiny amp of a horrendous bass load than it may make sense. But the NAD is more than adequate to drive these relatively efficient speakers.
But again, if he likes the sound that is all that matters.
But there is a reason why hardly anyone utilizes this approach.
-Rob
Also, the distortion/noise added at the line level is completely different than what is created by the transducer. It is far more audible and nasty.
Finally, if you were talking about relieving a tiny amp of a horrendous bass load than it may make sense. But the NAD is more than adequate to drive these relatively efficient speakers.
But again, if he likes the sound that is all that matters.
But there is a reason why hardly anyone utilizes this approach.
-Rob