The Synergistic power components make significant improvements on sound.
The PowerCells get better and better. Easy to tell that the next model now beats the last model, but any model would be a nice upgrade I am sure depending on listening skills. The power cables are the first thing to consider depending on how much your budget is. Synergistic Research power component make music and sound better, more natural in rhythm, timbre, and sound stage. They know what they are doing. Ignore (if you can) the ignorant complainer on Audiogon that dis SR. You'll be glad with any of their power products. The more you spend, the better the sound. Start with a Purple Duplex and a used power cable. The Powercell 12UEF is outstanding and comes with a great cable too. The Purple duplex will for a low cost make a significant boost in fidelity.