Band: opinion spread · Dot: weighted average
Sources split three ways over the same curve. Most — including the measuring reviewer who called it 'less bright, more neutral' — hear the X as the balanced, natural Grado. Others hear it as still unmistakably coloured and forward, built around a 2 kHz spike. A smaller group of Grado loyalists and one harsh critic hear the opposite problem: darker and duller than the old SR325e, with the house bite gone.
Measured
Three rigs (oratory1990's GRAS, kr0mka's 711 clone with KB501X pinnae, Auriculares Argentina), each against an HD 600 on the same rig: the 2.1 kHz peak sits at about the HD 600's own 2 kHz level; 3–5 kHz is 4.4–5.8 dB and 5–8 kHz 2–5 dB below the HD 600; a narrow 9.3–9.7 kHz peak is 8–10 dB above it; 40–200 Hz runs 1–3.5 dB above it. On InnerFidelity's rig the older SR325e measured ~4 dB hotter than its HD 600 at 2–3 kHz.
vs. listeners — The 'too dark' and 'still shouty' camps are describing different bands of the same curve: the 3–8 kHz region really is darker than the old Grado's (and the HD 600's), while the narrow 2 kHz spike Resolve calls 'massive' is still there.
“The overall tonal balance now tilts less bright, more neutral, darker even in some respects, while maintaining Grado's DNA on the upper mids.”
Marvey, Super Best Audio Friends
“It’s definitely a coloured headphone and by no means ‘reference’”
Matty Graham, Headfonia
“the midrange is simultaneously warm and veiled, not unlike an under-driven HD600.”
k4rstar, Super Best Audio Friends
