To start off, let's take a look at some of the specifications of the GMX A-2.1 speakers. You can find a more fully featured technical specification here if you so wish.
|Frequency response||30-20 kHz +/- 5 dB|
|Max acoustic output||108 dB|
|Amplifier power - Satellites||14 W/channel continuous, 2 channels driven from 150 Hz-20 kHz|
|Amplifier power - Subwoofer||50W continuous, from 30-150Hz|
|Inputs||1 analogue stereo mini-plug, 3.5mm; 1 analogue stereo|
|RCA outputs||Two speaker level outputs (spring clips)|
|Transducers - Satellites||0.75" metalized polymer tweeter and 3" metalized fiber-composite midbass with center bullet|
|Transducers - Subwoofer||6.5" fiber-composite subwoofer|
|Crossover frequency||To satellites @ 140Hz|
|Subwoofer||6.5" front firing driver|
As we've just mentioned the GMX A-2.1 are (as the product name suggests) a 2.1 speaker set, comprising of two 14W per channel satellite speakers and a 50W subwoofer. These speakers are designed to accept any analogue stereo input, and thus are suitable for any device from a PC to a console or HiFi system. The diagram below, as found in the product manual, gives a more visual representation of the potential connectivity.