Speaker hiss

What if I said that I wanted to try listening to a pair of speaker drivers super-nearfield, almost "earfield". Any hiss from the Proprius coming through will be undesirable. Is there a way to manipulate the load, by increasing impedance or lowering sensitivity, to push the hiss into inaudibility without altering the frequency response or damping factor?

Adding to Graham's points. Ash, the signal to noise ratio is fine but that close you would need to turn the signal level right down before listening to music and the noise you hear would be cut drastically at the same time. You'll know the signal level drops off as you move away from the speaker cone just as the noise does so it is very loud next to the speaker.

Turning the volume control down on the Proprius amp would save your ears from very loud music at close range in that hypothetical (and inappropriate) listening position and simultaneously address the noise you can hear that close to the speaker cone.

I have the volume controls on my Proprius amps at about 12 o'clock (roughly -20dB FS) and the Majestic volume between 10 and 11 o'clock and it's loud enough for me in my living room at 2.5 metres! Yes, there is a subtle hiss I can hear if no music is playing but only if the central heating is off and the street outside is silent.