I don't know of a speaker that is more tonally correct than the Harbeths. The October 2015 issue of The Absolute Sound contains an excellent review of the Harbeth HL5-Plus loudspeakers written by Paul Seydor.
http://tb-pr.com/files/hal/reviews/oct15-TAS-SHL5plus-REVIEW.pdf
http://tb-pr.com/files/hal/reviews/oct15-TAS-SHL5plus-REVIEW.pdf