Generation 3

Good for people with smaller ears and long term use, uses 3d printed custom resin shells designed by RikuBuds

Alter Rider 3

Neutral: Linear bass shelf rise with sub-bass focus and very well textured bass, not a lot of bass quantity (for neutrality), balanced male/female vocals, smooth yet airy treble, holographic stage, excellent timbre, thinner note-weight than most other models, versatility (matches well with a lot of genres)

Price: 100 euro (excluding shipping, generally 10-15 euro)

Grand Alter Saber 3

Refined GAS2 with cleaner bass quality and a bit reduced mid-bass, more vocals and smoother and a bit less treble, more balanced overall (bass boosted neutral) and improved timbre

Optional MMCX version: Has slightly less bass than the non-MMCX version. MMCX connection is extremely tight, not recommended to disconnect.)
Costs 35 euro extra

Price: 150 euro (excluding shipping, generally 10-15 euro)

Saber 3

L shaped: mix of the Ej07m/XBA-Z5, upper mids of 07m, Z5 treble without 4/10k peaks, bass/lower-mids mixed between 07m/Z5. | Boosted sub/mid-bass, has forward female vocals, smooth and somewhat dark treble, quite deep stage that is holographic. Great timbre

Price: 100 euro (excluding shipping, generally 10-15 euro)