We wanted a new speaker that was in between the British Sound and the American Vintage sound so we came up with the new Greyhound Speaker. During the design process we mainly used a Blackface Twin to test so we think this speaker sounds particularly good in this type of amp as well a Peavey 5150 for high gain. As far as tone goes, the Greyhound is smoother sounding on the top end and upper midrange than a Celestion Vintage 30 but has more punch than a Jensen C12N. It has a great rock tone (specially for mid gain to high gain amplifiers) but stays clean enough for those who don't like too much speaker break-up.