If you have a preamp that only has RCA out and an amp that only has XLR in (or want to use the XLR in on an amp), forget about using the RCA/XLR adapters for that application. The PI-2RX, if your budget extends to this, is the MUCH better option. Not only will in convert the incoming signal from an RCA cable to a balanced out going signal, the PI-2RX also isolates the signal and kelp eliminate noise inferences like hum, clicks or pops that may travel through the signal path, it also ensures no degradation in signal quality. The cheap “cheater” RCA/XLR adapter will not do any of the above.
Cosmetically, the unit looks in near mint condition. Copy of manual is included and unit will be securely packed for safe shipping.