I don't have a lot of experience with higher-end speakers, but I think the Tonkerlite sounds great in my Gries 5. The amp weighs in around 27 pounds which is a nice bonus.
I have a blue in mine also so I know what your talking about. It sounds amazing. Not that the Man O War that came with the amp sounded bad at all, I just had to try a blue.Totin' a Gries 5 here w/celestion blue. It's just unbefudgingbelievable! I could have gotten the
Tonkerlite, but couldn't figure why a 100 watt speaker
would be a proper match in a 5 watt amp. So, the Blue made more sense to me. I ordered mine naked, and installed the Blue upon arrival. I couldn't be more pleased with mine.