Need help for Upgrading new S.E.X with C4S

[chuotcon15]

Hi guys,
I just got my new S.E.X with C4S.
I want to upgrade tubes, capacitors, … etc. for a better sound.
Anyone having experience on this, please help me.
Thanks all.

 

[Paul Birkeland]

Built it stock and get it working properly first. 

 

[chuotcon15]

Thanks for advising.
I will build it then asking again.