I bought this speaker mainly for to reasons to have stronger speaker in my amp so that I can use it as cabinet for stronger amps and also o improve tone of the Marshall Dsl5 C amp.
I'm not a sound engineer and I'm only driven and rating by how its sounds to my ears. Is it a better the Celestion 10-30 speaker, per my opinion yes, but Celestion 10-30 speaker is also good speaker and the difference with Vintage is not huge, and i can't complain about 10-30 speaker performance.
Using the Vintage speaker on ultra gain distorted chanel sound is better and the leads on it sound less snapy and bright to my ears. Also i think the lower frequencies also sound better. Further more the speaker needs some time to flex and to give all of its potential, roughly after 30 hours of use.