FiiO K13 R2R DAC - Excellent - Verified by HiFiLoop
The Audiophile’s Hook
The FiiO K13 R2R is your desktop “resistor ladder” gateway: a fully balanced R2R DAC + headphone amp built for black-background clarity and musical flow. Get reference-grade drive and tuning flexibility for less—without paying the new-price tax.
Condition Report (The Truth)
Excellent (95%) — well-cared for, with normal signs of use.
- Visible cosmetic wear from regular handling (minor scuffs/marks).
The device has passed all functional tests.
Sonic Signature & Pairing
R2R decoding is prized for its more “analog” texture—natural timbre, smoother edges, and an easy sense of flow. On the K13 R2R, that character pairs beautifully with bright-leaning headphones and detail-forward dynamics, while its strong output keeps planars under control.
To unleash the full potential of this device, we recommend pairing it with gear from our Headphones Collection.
Technical Highlights
| DAC Architecture | Fully differential 24-bit R2R resistor array (fully balanced signal chain) |
| Output Power | Up to 2400mW + 2400mW (balanced) @ 32Ω |
| NOS / OS Modes | NOS for original-rate playback; OS upsampling mode (up to 384kHz) |
| Hi-Res Decode | PCM up to 384kHz/32-bit, DSD256 |
| Wireless | Bluetooth 5.4 (LDAC / AAC / SBC) |
| EQ / Tuning | 10-band high-precision PEQ via FiiO Control (app/web) |
What’s in the Box
- FiiO K13 R2R (unit)
- Accessories: Not specified in this listing. (If you need confirmation, message us before purchase.)
Why Buy Used from HiFiLoop?
- ✅ 14-Day DOA — dead on arrival? Full refund or replacement.
- 🔧 180-Day Warranty — free repair service (buyer covers return shipping).
- 🔬 Lab Tested — I/O, noise floor, channel balance, and basic stability verified.
- 📦 Free Shipping — on 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.