from the manufacturer:
Thomastik-Infeld DOMINANT PRO® NO.DP400: For all you pros.
Inspired by the sound of a tube amplifier and using the playing possibilities created by an innovative metal core, DOMINANT PRO® redefines past tonal ideals. The set has an airy, light sound character with pronounced, brilliant overtones and a pleasantly warm basic timbre with plenty of texture. DOMINANT PRO® is a sheer joy to play.
Highest modulation capacity of timbres and sound structure: depending on the playing style, the sound of the strings can be formed with incredible brilliance or to be warm, round and saturated. The sound structure can be wonderfully modulated from fine-grained to coarse-grained.
The dynamic range extends from an airy and delicate pianissimo (pp) to a rich fortissimo (ff).
DOMINANT PRO® is the name of the fastest and most direct response within the Thomastik-Infeld cello string repertoire. Especially at high bow speed, the strings develop their supporting resonance.
Rich colors and also an especially structured sound!