I have an ST500 and I find the choice of power cord does make a significant difference. I really like the Nordost Brahma cord which is then plugged into a Nordost Thor. My set-up is probably a bit unusual for an amp in this price range whereby the cord is almost as much as the amp, the power center twice the price and the preamp five times the price.
The stock cord isn't bad. I preferred it over a 12 gauge PS Audio cord I have which tended to sound thin. I have not tried an assortment of cords other than to note what works for me.
If you check my systems, you can see I enjoy tubed components. My ST500 has the WBT outputs which I'm told makes a noticeable improvement vs the standard terminals. I find that the sound is not like SS amps I've had before nor is it the same as tubes. I enjoy the amp.
The stock cord isn't bad. I preferred it over a 12 gauge PS Audio cord I have which tended to sound thin. I have not tried an assortment of cords other than to note what works for me.
If you check my systems, you can see I enjoy tubed components. My ST500 has the WBT outputs which I'm told makes a noticeable improvement vs the standard terminals. I find that the sound is not like SS amps I've had before nor is it the same as tubes. I enjoy the amp.