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11-27-2018, 07:52 PM
Hi jmcd
Yes, Rg1 in your drawing works against Cin to create a low-frequency roll-off. In a typical feedback-stacked splitter, the equivalent Rg1 value is higher than the schematic value because of the bootstrapping effect of the feedback node. In your drawing with no feedback and not stacked, Rg1 is Rg1.
Changing Rg1 to a pot with the wiper only tied to the grid does not change the bass response over the sweep if the pot.
Yes, Rg1 in your drawing works against Cin to create a low-frequency roll-off. In a typical feedback-stacked splitter, the equivalent Rg1 value is higher than the schematic value because of the bootstrapping effect of the feedback node. In your drawing with no feedback and not stacked, Rg1 is Rg1.
Changing Rg1 to a pot with the wiper only tied to the grid does not change the bass response over the sweep if the pot.
