I posted a video above and it backs up what I said. There are people saying the same in this thread and I tell them my understanding. 6k is not where it counts for guitar and at that frequency Celestion shows a 5dB difference, not 10, with their personal design. Again, it is my opinion and ear experience. I have found nothing guitar sound-wise that would make me dump any of my speakers for a Neo. I also stated "their designs" as in guitar related designs are lacking. I do not see Neo replacing ceramic or AlNiCo in guitar land at this point.