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 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.
Dminches, You'll probably right.

Dan is investigating installing Bybee rails and Audio Magic pulse gen zx in the Transporter so I will have him lower the voltgage when in the shop. Meanwhile I'll just use the JJ GZ34. After 24 hours of use, the only difference is JJ has a little bit more body than TS which is not bad.