Why not just use a sub that has speaker level inputs?
Adding a powered subwoofer RCA output to a tube amp
I have a Dynaco style tube amp that is really nice but I would like the flexibility of adding a powered subwoofer when I want the extra punch. I am still pretty new to audio but can read schematics and am learning fast.
I am looking for some insite into the correct way to wire the connections. Can I pigtail directly off the line level input from the volume potentiometer in the amp and connect that to a pair of RCA jacks in the back of the amp (keeping volume control for the sub)? Should I ground the new RCA jacks to the regular main amp ground or should they be isolated? Should I connect a resistor between the new outputs to ground?
I have been trying to read and figure this out myself but really don't want to mess anything up and can't find a straight forward answer. Thank you very much in advance.
I am looking for some insite into the correct way to wire the connections. Can I pigtail directly off the line level input from the volume potentiometer in the amp and connect that to a pair of RCA jacks in the back of the amp (keeping volume control for the sub)? Should I ground the new RCA jacks to the regular main amp ground or should they be isolated? Should I connect a resistor between the new outputs to ground?
I have been trying to read and figure this out myself but really don't want to mess anything up and can't find a straight forward answer. Thank you very much in advance.
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