RUVIEST Neo-E Hybrid HIFI In–Ear Monitor with 2 DD + 8 BA + 1 PZT
Model: Neo-E
Driver: 2DD+8BA+1PZT
Sensitivity: 107dB/mW(@1KHz)
Impedance: 8Ω(@1KHz)
THD: ≤1% (@1KHz)
Effective Frequency Fesponse: 20Hz~20KHz

The Neo-E is a hybrid in-ear monitor built for long listening sessions.
It doesn't grab you with a flashy first impression. Instead, a warm foundation, liquid vocals and treble that is bright without being sharp keep you going track after track.

The Neo-E runs an 11-driver hybrid architecture (2DD + 8BA + 1PZT), with a five-way physical crossover splitting the full frequency range so each band is handled by the driver best suited to it.
Two 7.5 mm dynamic drivers sit in an opposed configuration and take the bass path on their own. The eight balanced armatures are split across three paths — 2 for midrange, 2 for upper midrange, and 4 for treble and ultra-treble. The PZT piezoelectric ceramic driver occupies a path of its own, driving micro-vibration in the shell to complete the atmosphere.
Dynamic drivers bring natural, relaxed lows; balanced armatures bring density and speed through the mids and highs. The two are natural complements. The Neo-E doesn't stuff drivers into a shell to pad a spec sheet — it lets each one do only what it does best: the dynamics breathe the bass, the armatures voice the mids, and the PZT fills in the atmosphere.

The stock cable uses a silver-plated copper core, combining the body of copper with the openness of silver for cleaner signal transfer — the final piece of this five-way architecture.

Overall signature: warm · liquid · bright without being aggressive
Bass has ample quantity and solid extension, stopping cleanly without overwhelming the head. Vocals sit slightly forward — lush, full-bodied and generous with emotion. Treble is bright and open with rich detail, yet sibilance is reined in so it never pricks the ear. Layered with the PZT's shell micro-vibration, the soundstage spreads outward naturally for a more complete sense of space. The three bands blend seamlessly and long sessions stay fatigue-free — this is a pair you can listen to from track one of an album all the way to the last.