When investing in an amplifier, there are many companies offering many variants in terms of models, size, sound quality and much more. But purchasing the one that is apt for your needs is what is crucial. If your needs are of a bigger amplifier than buying a smaller one would not just disappoint, but would also not serve the purpose.
When you are looking at amplifier options, a G30 is a good amp. You might want to check the specifications of a good amplifier that suits your needs:
Features of a good amplifier:
Power Output: To simplify this, a power output is more or less directly proportional to the amount of sound you will get from the speakers. If you have big speakers working in a bigger room you might need an amplifier with a higher power output. Likewise, if the needs are lesser a lower power output is also good enough.
Total Harmonic Distortion and Noise: This basically implies the kind of effect the amplifier has on the quality of the sound. The lesser is the distortion and noise the more the amplifier will make the sound feel original. And a distortion generally means there is more element of color to the sound. Always look for an amplifier with a lower Total Harmonic Distortion and Noise.
The ratio of Signal to Noise: Here the aim is to make the back ground noise as imperceptible as possible. The noise could be due to the electrons in the amplifier whizzing. So higher is the ratio the better will the sound quality be. This can be explained by the example of the new sounds one can hear more clearly when the noises in the background diminish.
Crosstalk: When the stereos are placed at a particular distance from each other there is scope for cross talk. This is when the left signals of one stereo mix with the right signals of the other stereo. The distance between the speakers must be watched out for.