7th Acoustics Ryusei — Single-DD IEM - vividsound

What we hear

Vocals & Energetic

The 7th Acoustics Ryusei puts the voice in front of everything, with a level of vocal detail that's rare at this price, backed by deep, punchy bass, and it's made for singer-songwriters, a cappella and live acoustic sessions. On busy, loud tracks the crisp treble can turn sharp, so it's not the set for dense rock or EDM.

7th Acoustics Ryusei - vividsound

How it's built

Connectivity: 3.5 mm
Build:
Resin shells with a printed faceplate, built around a single dynamic driver.
Comfort:
Small and light, comfortable for long sessions. The stock Final Audio tips seal well without needing a deep insertion.

The specs:
 Drivers: 1DD — nano gold-plated diaphragm
Impedance: not published
Sensitivity: not published

7th Acoustics Ryusei — Single-DD IEM - vividsound

What's in the box

  • Detachable 2-pin cable
  • Final Audio Type E ear tips
  • Carrying case

What others ask  about 7th Acoustics Ryusei

Is the bass on the 7th Acoustics Ryusei sub-bass focused or mid-bass punchy?

Neither is the headline. The 7th Acoustics Ryusei has natural sub-bass (the rumble you feel) and a controlled mid-bass (the kick-drum thump), both kept tidy so they never crowd the voice. There's enough depth that music doesn't sound thin, but this single dynamic driver was tuned for singers, not bass lines. For low end at a similar budget, look at the Juzear x Z Reviews Defiant.

How do vocals sound on the 7th Acoustics Ryusei?

Ahead of everything else. The 7th Acoustics Ryusei puts the voice in front, so you hear breath, small movements and the space between words, and that level of vocal detail is rare at this price. One honest limit is that a crowded mix takes some body out of the voice. It's at its best with sparse recordings, so think acoustic, jazz vocals and singer-songwriters.

Is the treble on the 7th Acoustics Ryusei smooth, sparkly or sharp?

Sparkly, and sharp if you push it. The treble on the 7th Acoustics Ryusei is lit, which keeps it lively and airy, but busy tracks can turn sharp at volume. If you're treble-sensitive, try before you buy or pick the Dunu Kima 2, which gives you close vocals with a much calmer top end for a little less money.

Is the 7th Acoustics Ryusei fatiguing over long sessions?

It depends on your ears. Physically the 7th Acoustics Ryusei is small, light and easy to wear for hours. Sonically the bright treble is the limit, and at higher volumes with dense music it will tire treble-sensitive listeners well before the evening is over. At moderate volume with acoustic or vocal music it's fine. For all-day listening, the Dunu Kima 2 is safer.

Is the soundstage of the 7th Acoustics Ryusei intimate or wide?

Wide for a single dynamic driver at this price. The bright, airy top end of the 7th Acoustics Ryusei opens up the space around the singer, so the voice is close while the instruments spread out to the sides. Compared with the Dunu Kima 2, which keeps everything near, the Ryusei sounds like a bigger room.

Does the 7th Acoustics Ryusei fit smaller ears?

Yes. The 7th Acoustics Ryusei has small, light resin shells, and the Final Audio tips that come in the box seal well without needing a deep insertion. That last part matters for small ear canals, because you don't have to push the nozzle far in to get the bass. It's one of the safer picks in the shop for smaller ears.