I run the Sugden A21SE and it will not thicken the sound. Of oourse I cannot speak about your DIY tube amps. One would presume the Sugden would be much quicker with extended high end. But then I also run Manley tube amps and they are very quick indeed.
I will say the Sugden is very speaker cable sensitive and does not like silver much. Bright. The Sugden is not a warm sound. Very open and the bottom end is not warm or thunderous, just very fast and accurate. Hope this helps.
I will say the Sugden is very speaker cable sensitive and does not like silver much. Bright. The Sugden is not a warm sound. Very open and the bottom end is not warm or thunderous, just very fast and accurate. Hope this helps.