Either one would be fine, but again, just make sure that with the 4 ohm 100 watt resistor you don’t turn the volume control up so high that it gets hot.
For that matter, though, using the 4 ohm 100 watt resistor might be preferable to using the 300 watt 8 ohm resistor because if the lower powered resistor is not getting hot it would provide you with assurance that you are not overdriving and clipping the amp.
Regards,
-- Al
For that matter, though, using the 4 ohm 100 watt resistor might be preferable to using the 300 watt 8 ohm resistor because if the lower powered resistor is not getting hot it would provide you with assurance that you are not overdriving and clipping the amp.
Regards,
-- Al