Undertow mentions a couple of points about pro sound power amps. With regard to the ZR1600....sensitivity is no problem. A jumper plug lets you select any of four sensitivities, 0.316, 0.775, 1.23 and 2.45 vrms. The 0.316 value is for consumer single ended sources, and the 1.25 vrms value is for normal pro sound balanced lines.
The ZR1600 does have a fan. It is said that for home audio use it can be disconnected, but a better approach is to swap it for a very low noise fan that you won't hear even when no music is playing. For single ended RCA input you need only a MONO 1/4 inch phone jack to RCA adapter. (MONO provides the grounding of the (-) balanced input pin). Finally, being a digital amp, it wastes almost no power and runs cold.
The ZR1600 does have a fan. It is said that for home audio use it can be disconnected, but a better approach is to swap it for a very low noise fan that you won't hear even when no music is playing. For single ended RCA input you need only a MONO 1/4 inch phone jack to RCA adapter. (MONO provides the grounding of the (-) balanced input pin). Finally, being a digital amp, it wastes almost no power and runs cold.