This and That:
Nice selection of silicone ear tips.
Nice Brainwavz storage case. Could be a bit larger, though.
Really nice shell design; made of silver metal.
I dislike the flat cable.
The red core tips are quite thin and wobbly.
Sound:
Largest included red core silicone tips, low impedance sources.
Tonality:
Warm upper bass and fundamental range elevation of around 8 dB; becomes neutral again around 600 Hz.
Roll-off towards sub-bass (upper midbass is still lifted; rolled off towards neutral levels at 20 Hz). Audibly less present than mid- and upper bass.
Central midrange bit elevated, therefore voices closer in the mix. Overall good, pleasant timbre.
Treble smooth and linear, pretty much neutral, except for a moderate lift around 5 kHz that makes the treble/cymbal timbre a bit metallic.
Driver matching quite poor in the lows.
Resolution:
Decent. Resolves well for a dynamic driver in-ear. Bit below of the M3, though.
Bass quality decent; lacks softness and sponginess. Bit tighter than M3.
Quite good instrument separation.
Soundstage:
Not particularly large, however round and realistic.
Conclusion:
Decent sound but bad driver matching and flat cable.