Acoustune HS1900X “SHINOGI” Wired IEMs - Mint - Verified by HiFiLoop
The Audiophile's Hook
Acoustune HS1900X “SHINOGI” is Japanese metalcraft turned into sound—fast, articulate dynamics with a clean, high-contrast presentation that stays controlled when the mix gets dense. Mint condition, full set: reference-grade detail and build at a smarter-than-new price, verified by HiFiLoop.
Condition Report (The Truth)
Mint / Collector Quality: Pristine, like new with minimal handling marks.
- No obvious cosmetic defects observed.
- Full retail set included (box and accessories as shown in the listing photos).
Mandatory: The device has passed all functional tests.
Sonic Signature & Pairing
HS1900X is built around a single high-quality dynamic driver, aiming for natural timbre with speed and punch—an excellent match for listeners who want realistic instrument texture without losing separation. For best results, pair it with a low-noise DAP and use the balanced output to maximize headroom and control.
To unleash the full potential of this device, we recommend pairing it with gear from our Digital Audio Players Collection.
Technical Highlights (Mobile-Table)
| Driver | 10mm 3rd-gen Myrinx composite dynamic driver |
| Impedance | 24Ω |
| Sensitivity | 110 dB/mW |
| Frequency Response | 10 Hz – 25 kHz |
| Build | CNC titanium outer shell + multi-layer dry carbon fiber internal structure |
| Cable / Termination | ARC93 (tin-plated OFC), 4.4mm TRRRS balanced |
| IEM Connector | Pentaconn Ear |
What's in the Box
- Acoustune HS1900X “SHINOGI” IEMs
- ARC93 stock cable (4.4mm balanced)
- Ear tips (AEX50 S/M/L + AEX70 S/M/L)
- Aluminum protective case + portable carrying case
- Earphone clip and strap
- Retail box and accessories (full set, as shown in photos)
Why Buy Used from HiFiLoop?
- ✅ 14-Day DOA: Full refund/replace if dead on arrival.
- 🔧 180-Day Warranty: Free repair service (buyer pays return shipping).
- 🔬 Lab Tested: I/O integrity, noise floor, and channel balance verified.
- 📦 Free Shipping: Orders over $199.
See full Grading Scale in Footer Condition Guide.
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Condition Report
See details in the description above.
Shipping & Warranty
Processing Time:
Please allow 3-5 business days for order processing. We perform a final rigorous audio test, functional inspection, and deep cleaning to ensure the device is in perfect condition before dispatch.
Shipping Method:
We use reliable International Priority Lines. Tracking numbers are provided once the item is dispatched.
Estimated Delivery:
7-15 business days to most destinations (USA, Europe, etc.).
Warranty & Support:
We stand behind our quality with a 180-Day Warranty.
- 0-14 Days: Full refund or replacement for any functional defects upon arrival.
- 15-180 Days: Free repair service for hardware issues (Buyer is responsible for return shipping costs and any applicable customs duties or taxes).
Tech Specs
Refer to official manufacturer specifications.