I recently installed a 6 gauge "home run" line from our main panel to a dedicated outlet for audio. Connected to this outlet is a Sound Application TT7 240v power distributor. My amp, server, dac and switch power supply are connected to the TT7 and my class d speaker amps are on dedicated wall outlets.
I rented a Fluke 345 to initially measure at the panel which phase would give the best power factor measurement. The PF measured .74 and .68 on the other, which is not good. After much head scratching, I finally realized this was probably due to a small water pump station serving our neighborhood. This pump station is served by the next transformer down from the transformer that feeds our house.
I did find, however, there is an easy way to get the PF back up into the .90's which is to add a resistive load to the circuit in the form of incandescent light bulbs. So I replaced the CFL bulbs with about 300 watts of incandescent to get a PF reading of .91. Along with the PF, this improves the measured Current THD and creates a smoother Current waveform.
In initial listening tests, the SQ benefit is subtle but noticeable primarily in the form a more expansive soundstage.
I rented a Fluke 345 to initially measure at the panel which phase would give the best power factor measurement. The PF measured .74 and .68 on the other, which is not good. After much head scratching, I finally realized this was probably due to a small water pump station serving our neighborhood. This pump station is served by the next transformer down from the transformer that feeds our house.
I did find, however, there is an easy way to get the PF back up into the .90's which is to add a resistive load to the circuit in the form of incandescent light bulbs. So I replaced the CFL bulbs with about 300 watts of incandescent to get a PF reading of .91. Along with the PF, this improves the measured Current THD and creates a smoother Current waveform.
In initial listening tests, the SQ benefit is subtle but noticeable primarily in the form a more expansive soundstage.