Of all the E-strings described, THDP-01PT [diameter 0.268 mm, 8.2 kg, removable ball end] has the greatest projection capacity. It combines the clarity of the gold-plated THDP-01AU with the response of the tin-plated THDP-01. Like THDP-01AU, THDP-01PT is also extremely corrosion-resistant, but has less of a tendency to whistle and offers more brilliance in comparison. Due to its outstanding projection capability and clarity, it can be unsuitable for sensitive ears.
As a result of its larger diameter (0.268 mm as opposed to NO.DP01 and THDP-01AU with 0.265 mm), it offers more resistance to bow pressure and is also better suited to a very low string position.
Tip: players must also be careful when using a fine tuner hook with THDP-01PT , and always ensure that the sharp edges are rounded down.
