Cayin C9ii Balanced Portable Vacuum Tube Headphone Amplifier
- Advanced Amplification Circuit: Fully discrete, fully symmetric differential amplification with a three-stage circuit design for superior load-driving capability and enhanced transparency.
- Three Amplification Modes: Offers Class A and Class AB modes, along with the newly introduced Hyper Mode, maximizing circuit performance for superior fidelity, dynamics, and soundstage.
- Triple Timbre Options: Features Tube Timbre with dual KORG Nutube 6P1 vacuum tubes for warm, analog-rich sound, Solid-State Timbre for a clean and precise sound profile, and Bypass Timbre for uncolored output, ensuring versatility for different listening preferences.
- High-Quality Power Management: Powered by four high-capacity 21700 batteries with an advanced power supply circuit to ensure stable, high-current delivery for all modes and timbre options.
- C9ii,
- Battery Module,
- CS-35C35II Single End Cable,
- CS-44C44II Balance Cable,
- 4 x Samsung INR18650-35E Batteries,
- Hi-res Sticker,
- Type-C Cable,
- User Manual
| Product Availability | Available (current model) |
| Product Type | Amplifier (Headphone) |
| Style/Type | Portable |
| Features | Line-out, Line-in |
| Connectivity | Fully Wired |
| Amplifier Class | Class A, Class A/B |
| Power Amplification Type | Solid State, Vacuum Tube |
| Bluetooth Version | - N.A - |
| Frequency Response (Hz) | 11Hz-80Khz |
| Input Connectivity Options | 3.5mm Stereo, 4.4mm (5-Pole) [Balanced] |
| Output Connectivity Options | 3.5mm Stereo, 4.4mm (5-Pole) [Balanced] |
| Colour | Black |
| Battery Life (Hours) | Solid State - 10.5 hours, Vacuum Tubes - 8.4 hours to 9.7 hours. |
| Product Dimensions | 30 x 88.5 x 165 mm |
| Product Weight (g) | 650g |
| Package Contents |
|
| Warranty | 1 year warranty (local) |
If you're based in Singapore,
- spend $300 or more for free doorstep delivery1.
($250 for Silver/Gold/Platinum VIP members) - add a few more bucks, for delivery during the night/weekend, or quicker prioritised delivery options2.
- self-collection is possible at our Showroom, based in Ubi (nearest to MacPherson MRT). Find out where, and how to get to us here.
- and yes, you may arrange your own 3rd party logistics to pickup your purchases on your behalf.
GrabExpress, Lalamove, GoGoX, RydeSEND services are welcome.
View additional Terms & Conditions associated to local doorstep delivery service.
Friends from Overseas,
- we do ship internationally.
- shipping fees are calculated according to total gross actual or volumetric weight of all item(s) in cart, whichever higher.
- shipping fees will vary depending on international carrier(s)3, and will be displayed during checkout.
- do be aware of additional import tax/VAT that may apply.
Due to recent changes in U.S. trade regulations, additional tariffs are being imposed on products manufactured in China and imported into the United States. As many of our audio products are made in China, orders shipped to U.S. addresses may be subject to an added tariff charge at checkout, reflected as a "U.S. Import Tariff Surcharge". Please note that this surcharge amount is determined by U.S. import policies and may vary significantly depending on product categories and any future policy adjustments. These charges are necessary to ensure compliance with U.S. customs requirements and to allow us to continue serving our U.S. customers reliably. We strongly encourage you to review the total cost at checkout before placing your order.
View additional Terms & Conditions associated to international door to door shipping service.
1 Terms and condition do apply for free delivery. For more information, click here to view.
2 View our updated list of local delivery options.
3 View our updated list of international carriers.
No Reviews Available Yet. Leave Your Review
| Product Availability | Available (current model) |
| Product Type | Amplifier (Headphone) |
| Style/Type | Portable |
| Features | Line-out, Line-in |
| Connectivity | Fully Wired |
| Amplifier Class | Class A, Class A/B |
| Power Amplification Type | Solid State, Vacuum Tube |
| Bluetooth Version | - N.A - |
| Frequency Response (Hz) | 11Hz-80Khz |
| Input Connectivity Options | 3.5mm Stereo, 4.4mm (5-Pole) [Balanced] |
| Output Connectivity Options | 3.5mm Stereo, 4.4mm (5-Pole) [Balanced] |
| Colour | Black |
| Battery Life (Hours) | Solid State - 10.5 hours, Vacuum Tubes - 8.4 hours to 9.7 hours. |
| Product Dimensions | 30 x 88.5 x 165 mm |
| Product Weight (g) | 650g |
| Package Contents |
|
| Warranty | 1 year warranty (local) |
No Reviews Available Yet. Leave Your Review
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