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Need to split signal into two before this remote

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Hi,

Newby here. I need to split the connector coming out of a jamhub into two or three so I can increase the number of remotes that can be used. If a y cable is used the power is too low so I expect that for each of the channels I will need to use an opamp to increase the signal strength. Would a TL084 be able to do this? Would I use signal ground instead of earth ground?

I tried to come up with a circuit, but I have no idea how to match the impedance so don’t know what resistor values to use. If I duplicate the 4558 circuit with the TL084 would that do it?

Thanks,
Ian

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