@jsqt
I don’t envision any possibility of damage. But whenever the impedance of a speaker is significantly mismatched to the load impedance a tap is designed for there may be compromises to both maximum power capability and distortion performance.
As I indicated, paralleling two channels each of which has a tap that is optimized for a 6 ohm load in effect creates a 3 ohm tap. Applying a 3 ohm resistive load to such a tap would typically result in the amp being able to supply approximately twice as much power as it could supply into 6 ohms when running in stereo mode. With the impedance of your speakers being much higher than 3 ohms at most frequencies I’m pretty certain that the amp is falling significantly short of realizing that 2x increase. And although I’m just speculating perhaps the mismatch is contributing to the adverse sonic effects you described.
Regards,
-- Al
I don’t envision any possibility of damage. But whenever the impedance of a speaker is significantly mismatched to the load impedance a tap is designed for there may be compromises to both maximum power capability and distortion performance.
As I indicated, paralleling two channels each of which has a tap that is optimized for a 6 ohm load in effect creates a 3 ohm tap. Applying a 3 ohm resistive load to such a tap would typically result in the amp being able to supply approximately twice as much power as it could supply into 6 ohms when running in stereo mode. With the impedance of your speakers being much higher than 3 ohms at most frequencies I’m pretty certain that the amp is falling significantly short of realizing that 2x increase. And although I’m just speculating perhaps the mismatch is contributing to the adverse sonic effects you described.
Regards,
-- Al