As a cheap experiment born of curiosity, I tried using a a widely available commercial "online" uninterruptible UPS, which does a full AC>DC>AC conversion for all power output, here: https://www.amazon.com/dp/B0050NZTQ2/ref=cm_sw_r_sms_tai_GYJ4zb8PJA3P1. In other words, it is NOT a stand-by power source; it is the primary source. It has a rated output of 1500 amps, far in excess of my system's needs. According to the included monitoring software, output, voltage and frquency were rock steady regardless of the music.
The results were impressive, even though the nominal THD quoted for the UPS was poor. Using a sound meter, hiss and noise at the speakers dropped 4-5 dB. Music sounded both more detailed and with greater air. Bass seems unchanged, but admittedly I am not a bass fiend. Ymmv.
Cheers, Alex
The results were impressive, even though the nominal THD quoted for the UPS was poor. Using a sound meter, hiss and noise at the speakers dropped 4-5 dB. Music sounded both more detailed and with greater air. Bass seems unchanged, but admittedly I am not a bass fiend. Ymmv.
Cheers, Alex