No. As I said earlier, if you want to scale the input, the easiest option is a wavefile current source with a resistor across it e.g. 0.1 ohms for 100mV amplitude. Whether or not you need a coupling capacitor depends on your circuit's biassing. Your circuit needs a DC path for the base current of Q17, so if you AC couple the input, you'll need to provide a bias network after the coupling capacitor.
If you use a potential divider to scale the circuit OUTPUT and need to get rid of DC offset, AC couple it. The RC time constant of the coupling capacitor with the total divider resistance should be chosen to get the -3db cutoff frequency well below the lowest frequency of interest. Alternatively, if the operating point is stable, for sim only, you could add a DC voltage source in series with the output to cancel out the offset.