Pros:
Well-balanced U-shaped Harman warm sound signature.
Bass quality, control, and texture are excellent for a planar IEM.
Vocals are lush, clean, sweet, and engaging.
With the right tips, the treble is smooth, with good body and extension.
Comfortable and light housing.
Immense technical performance.
Can be analytical or musical depending on the tips used.
Nice stock cable.
Natural timbre.
Cons:
Quite power demanding, requires a good source.
Tips sensitive: wrong tips can result in harsh, peaky, and grainy treble.
No case or modular jack option included.
Slight sibilance present, as with many planar sets.
Slight planar timbre, though minimal.
The Tin HIFI P1 Max II boasts solid technical capabilities, with particularly impressive bass quality. Enthusiasts who appreciate a transparent and detail-oriented sound signature will likely enjoy Tin HIFI's latest creation. The ergonomics and build quality are also commendable.
However, several tonal flaws prevent it from achieving greatness. The upper midrange and treble may be polarizing, especially for those sensitive to treble. Additionally, the lack of a case or even a pouch at its >$100 price point is disappointing. The below-average isolation and relatively high power requirements are also potential drawbacks.
In the highly competitive planar IEM market, the P1 Max II does not necessarily fail, but it does not lead in any specific area to distinguish itself from the competition. In such a dynamic market, being average can equate to being forgettable, as new IEM releases continually vie for the attention of audiophiles.