Hi, I'm new to this forum. Currently making use of a Hidizs Sonata HD to my Oneplus 6 phone and was contemplating upgrading to a better dac/amp like Dragonfly (red or black) or any others but unsure whether is it a worthy upgrade. Sonata HD is around $30 and Dragonfly red is 10 times the price approx. , will I be getting like day and night difference or is a case of diminishing returns? Thanks in advance.