Cayin C9 Portable Headphone Amplifier - Excellent - Verified by HiFiLoop
Overview
The Cayin C9 is a true flagship portable headphone amplifier built for “choose-your-flavor” listening: switch between Tube and Solid-State timbre, then fine-tune with Class A / Class AB to match your headphones and mood. This Excellent (98% new) bundle delivers reference-grade drive and flexibility at used-market value—verified by HiFiLoop.
Condition and Included Items
Excellent / Well-Cared For: Very clean overall, lightly used, and handled with care.
- Bare unit bundle (no retail box unless shown in photos).
- No obvious cosmetic defects observed.
- Included: two interconnect cables + USB-C charging cable + battery set.
Mandatory: The device has passed all functional tests.
Sonic Signature & Pairing
C9 is all about control and customization. Tube mode adds a more organic bloom and dimensionality, while Solid-State keeps edges tight and images sharply outlined. Class A emphasizes density and smoothness; Class AB leans punchier and more efficient—ideal for longer portable sessions.
To unleash the full potential of this device, we recommend pairing it with gear from our Headphones Collection.
Technical Highlights (Mobile-Table)
| Timbre Modes | Tube (dual KORG Nutube 6P1) / Solid-State |
| Amplifier Modes | Class A / Class AB (instant switching) |
| Inputs | 3.5mm single-ended + 4.4mm balanced |
| Outputs | 3.5mm single-ended + 4.4mm balanced (supports BAL↔SE optimization) |
| Power System | Removable battery module; 4× user-replaceable 18650 cells |
| Charging | USB-C charging |
| Size | 160 × 80 × 28 mm |
What's in the Box
- Cayin C9 portable headphone amplifier (bare unit)
- Portable interconnect cable(s) (as included in your bundle)
- USB-C charging cable
- Battery set (4× 18650 cells)
Why Buy Used from HiFiLoop?
- Listing photos and final unit details are reviewed before final payment.
- Included accessories, missing items, and version details are documented.
- Function checks are completed before dispatch.
- Shipping method, destination costs, and support coverage are confirmed case by case.
If you are unsure, send us the model, destination, and condition target before payment.
Condition Report
Condition grade, visible wear, included accessories, missing items, and final photos are reviewed before payment.
For this unit, please refer to the listing photos and included-item notes above.
Shipping & Support
Shipping method, estimated delivery, destination-related costs, return handling, and support coverage are confirmed before final payment based on the exact item and destination.
Any support coverage or return terms that apply to this unit will be stated in the final confirmation before payment.
Tech Specs
Refer to official manufacturer specifications.