Are the Sonic Impact HF1 High Fidelity Earphones the best earphones on the market? Is it worth buying it? They are not the best of the best, but for the price we think they are a good set of earphones, but you decide. Let’s see the features and specs for this super earbud style earphones. The Sonic Impact HF1 High Fidelity Earphones are inexpensive, they are pretty Standard, but they also have a good set of specs for the cost. It has a 13mm Drivers that produce a frequency between 18hz and 22hz. The Sonic Impact HF1 are compatible with any portable device and one of the cool features of this earphones, is the leightweight in-ear design with soft earpads.