Available in two versions: 1 and 2 * 12 * 10 + celestion heritage or vintage (and all mixable) ... well look at what you buy because a 1 * 12 heritage is not like a 2 * 10 vintage !!!!!
c makes the perfect complement (I think) of series 30 and 60 jtm. the weight is reasonable and will give you full satisfaction.
Personal I * in a 12 celestion heritage ... and sounds severe! (C I note that this version .... the others are at least as good, and at worst 7 / 10)