Hi Alexv
I biamp my 801Ns with Mac tube and solid state amps, and am very happy with the results. That being said, I think that if your system sounds bright to you, adding more power to the bottom end won't change the way your current amp comes across in the mids and highs. The brightness is what you really want to address. Another amp on mid and high frequencies might do the job for you. Also, as Cxintx suggested, another source might be the answer.
Bill
I biamp my 801Ns with Mac tube and solid state amps, and am very happy with the results. That being said, I think that if your system sounds bright to you, adding more power to the bottom end won't change the way your current amp comes across in the mids and highs. The brightness is what you really want to address. Another amp on mid and high frequencies might do the job for you. Also, as Cxintx suggested, another source might be the answer.
Bill