The high end was just too grating … Additionally, the leather of the GH4 feels a bit softer than that of the RS2e. You must log in or register to reply here. On one hand, the Grado GH4 has emphasis in the upper treble and upper octave around what sounded like 8 kHz and 10 kHz respectively. They also only follow the shape of the earcup, leaving a big hole where the ear sits. They are related and sound similar but the RS-1 is bigger and fuller sounding.