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
Wig, Yes, please do let us know. I will be interested to know if you also prefer the Synergy to the vintage Mullard in the ModWright. By the way, what year production Mullard do you have? Mine was 1969.
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.