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
I just received the Create 5AR4 and it is fabulous in the Modright Oppo 95. I hear a clearer, more open soundstage with tighter bass and better dynamics. This tube replaced a new old stock Phillips tube from the Netherlands. Wig thanks for your feedback. I can't wait until I get at least 50 hours on this tube. It is hard to believe that a stupid rectifier tube can make such a difference.
I just rcvd a JJ GZ34/5u4gb and it's fabulous in my MW Transporter. It's only $14.99 plus it's new production so available. It's neutral, clarity, transparent, dynamic, high resolution ...

I also find Mullard GZ34/GZ32 too sweet so been using NOS Tung-Sol 5U4GB but it's getting difficult to find so looking for alternatives. The JJ sounds very similiar to the Tung-Sol and worth a roll.

Like I said earlier, JJ is highly recommended by MW owners that find Mullard gz34 and EML 5U4G too sweet.
Knghifi, can you define "sweet"?

In my MW Transporter I have been using a pair of Mullard ECC32s and an EML 5U4G mesh rectifier. I really like this combination. I am also a vinyl lover to give you some sense of the sound I enjoy.
Dminches, Too much body, warmth ... I'm using BT CV181-Z and TS 5U4GB in my MW Transporter. There's no right or wrong but just my preference.

2 TS already died so looking for alternatives. I still have 2 more and so far enjoying the JJ GZ34.
Knghifi, I had Dan reduce the voltage being delivered to the 5U4G. People had noticed that their EMLs were dying prematurely. This may be what's happening to your TS rectifiers.