Indeed, Hubbell makes some excellent products. Specifically, if you're looking for a 'bang for the buck' upgrade for your system, if you've typical residential grade outlets in your wall, replacing it with a HBL5362 (20amp) or HBL5262 (15amp) receptacle [as determined by your breaker rating] is a substantial, inexpensive upgrade, whether independently or in concert with power cord upgrades. They're available from stayonline.com for $14 and $12, respectively.
Regardless of what power cords you settle on, you'll find the outlet itself is a major contributor to sound quality. In my system I use the Jena cryoed version of the HBL5262 @$50. I also respect the TeslaPlex outlet @ $95, but frankly, its not my cuppa, although I can see where others might prefer its vivid presentation. As you're just starting out on you exploration of upgraded mains components, the standard Hubbells from stayonline are a great way to start, and it will give you a more accurate assessment of power cords.
FWIW,
Paul
KaplanCable.com
Regardless of what power cords you settle on, you'll find the outlet itself is a major contributor to sound quality. In my system I use the Jena cryoed version of the HBL5262 @$50. I also respect the TeslaPlex outlet @ $95, but frankly, its not my cuppa, although I can see where others might prefer its vivid presentation. As you're just starting out on you exploration of upgraded mains components, the standard Hubbells from stayonline are a great way to start, and it will give you a more accurate assessment of power cords.
FWIW,
Paul
KaplanCable.com