Stratocaster send his 'woodified' NAD RP18-Kapton in for measurements (including some other headphones)
This is how it measures:
and CSD (right channel only)
Tonally balanced, the midrange seems slightly ‘better’ than T50RP-Alpha, a bit more clarity.
Bass on this one is also somewhat ‘clippish’ but seems slightly better than that of T50RP-Alpha.
The cymbals are over-accentuated a bit, making it sound highly detailed.
No sibilance or harsh sound with the better recordings. A bit in-between the lusher T50RP-Alpha and the more direct DT250 treble.
Not as smooth/clean as T50RP though but certainly not rough sounding.
Mids are its strongest points. A very clean and pleasant sound leaning toward ‘cuppy/hollow’ sound in some recordings on direct comparison with a reference headphone.
Very open and not overly dynamic nor compressed sounding, just ‘right’ in the mids tonally albeit leaning towards some edginess with some recordings.
The Alpha padded T50RP is more bassy (warmer) and slightly smoother up top but the NAD sounds a bit more ‘detailed’ and ‘fresher’ be it somewhat ‘rougher’.
Frequency range right up to 4kHz is quite good. The dip at 5kHz and treble peak is less desirable and is flanked by ringing.
