I currently have a Celestion Creamback I'm using with my Dr Z Antidote. This is in a Z 1x12 convertible cabinet typically played closed back. I like the Creambacks break-up but find it a little spiky in the hights. Additionally when maxing the volume on my Seth Lovers the speaker's bass gets a little flubby. I would like to maintain the breakup characteristics but tighten up the bass and smooth out the hights.
I'm looking at the ET65. Am I on the right track? Are there other suggetsions.
You might be on the right path, see:
https://wgs4.com/creamback#comment-8504