Crisp sounding tubes for Modwright 5400ES


I recently upgraded from a Modwright 9100ES to a Modwright 5400ES. While there were improvements, the richer mid-range and more powerful bottom end of the 5400ES tipped my previously balanced sounding system into one sounding a bit overly polite with a lack if crispness in the top end.
Can anyone advise me on what tubes (output & rectifier) and power cables to chose so as to brighten the top-end.
Grateful for your advise.
solentgreen
Podeschi is spot on with his power cord observation on the MW. Audience PC produces a quieter background and allows you to listen deeper into the soundstage. Other cables were good if you want a more forward sound and less
precise localization of images.

Audience just sound more natural...
I just rcvd the Create 5AR4 tube and my initial 15 min observation with my Shure 840 headphones and they are fantastic and will need 50+ hours to stabilize.

Waay more ambiance and detail retrieval, more to follow after listening through my system tonight...
I found the Synergistic Hologram D PC to be a substantial improvement to other cords I tried. On the PS I use a T3. Also receptacles can help you shape the sound. The TeslaPlex will certainly make your system less polite and perhaps the cheapest change.
Wig, Glad to hear the tube is showing some potential for you. At the very least, I think this tube is going to take some pressure off of the vintage Mullard market. I found the tube to be exactly the ticket for the ModWright Sony. People who use a 5AR4/GZ34 owe it to themselves to give the Create tube a try.
I will be getting this tube this week and report back on how it sounds in the Modright Oppo 95.