Kgturner,
Thanks for the write up regarding the Malbecs. Just a thought about your buzzing problem if you think that the efficiency of the speaker made it possible for you to hear the noise floor of the amps, why not connect an attenuator pad (with settings of 3, 6 and 9 dB or fine points in between on the positive leg of the output)with about 10 Watts power rating to be safe and see if it still persist? Since we are not concern about the sound quality at this point but to isolate the problem, the exercise will decrease the efficiency of the speakers as you increase the attenuation and you can monitor the buzzing sound if it gets affected by the change.
regards
Thanks for the write up regarding the Malbecs. Just a thought about your buzzing problem if you think that the efficiency of the speaker made it possible for you to hear the noise floor of the amps, why not connect an attenuator pad (with settings of 3, 6 and 9 dB or fine points in between on the positive leg of the output)with about 10 Watts power rating to be safe and see if it still persist? Since we are not concern about the sound quality at this point but to isolate the problem, the exercise will decrease the efficiency of the speakers as you increase the attenuation and you can monitor the buzzing sound if it gets affected by the change.
regards