Cayin C9ii Titanium Portable Tube Headphone Amplifier – Nutube 6P1, Fully Balanced
Cayin C9ii Titanium Portable Tube Headphone Amplifier – Nutube 6P1, Fully Balanced
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Explore solid-state and valve amplification on the move with the Cayin C9ii Titanium. Its battery-powered design and selectable sound settings make it a flexible partner for a suitable portable player or dedicated line-level source.
Key Features
- Gen5 Nutube 6P1 tube circuit – Cayin's fifth generation of its Nutube design gives the amp a genuine tube stage in a portable chassis.
- Adjustable anode (plate) voltage – change how the tube operates and fine-tune the presentation to your headphones and taste.
- Classic and Modern tube timbres – switch between two tube voicings without changing gear.
- Fully discrete, fully differential design – the circuit avoids integrated op-amp shortcuts in the signal path.
- Fully symmetrical architecture – both halves of the balanced signal are treated identically, which supports transparency and drive.
Good to Know
The C9ii is an amplifier rather than a source, so you pair it with a digital audio player or a DAC. Because it runs on its own battery, it works on the go as well as on a desk, and the tube settings make it easy to tailor one amp to several different headphones.
Shipping & Returns
Free UK Delivery – We ship exclusively within the United Kingdom. Orders are processed within 1 business day, with estimated delivery in 5–8 business days after dispatch.
30-Day Returns – Returns are accepted within 30 days of delivery, subject to our Return & Refund Policy.
Customer Support – Monday–Friday, 9 AM–5 PM (UK local time). Business days exclude weekends and UK bank holidays.
INSTALLATION NOTE
INSTALLATION NOTE
Our lighting products are designed for easy and reliable installation. Depending on the model, your item will either be hardwired directly into your mains electricity or simply plug into a standard wall socket.
If your product is hardwired (please refer to “Power Supply” above), we recommend installation by a qualified electrician to ensure safety and optimal performance.
For plug-in models, no special installation is required—just connect to a standard outlet and enjoy.
Detailed installation instructions are included in the manual provided with your product.
QUALITY GUARANTEE
QUALITY GUARANTEE
At Vaulto, quality is at the core of everything we do.
Each piece is carefully selected and undergoes strict quality control to ensure it meets our high standards and your expectations.
SHIPPING & DELIVERY
SHIPPING & DELIVERY
We deliver across the United Kingdom using trusted partners.
Orders are processed within 1–2 business days (Mon–Fri).
Delivery typically takes 4–6 business days, for a total delivery time of 5–8 business days.
Free shipping is available across the UK.
Once dispatched, you’ll receive a tracking number. Please allow 1–2 business days for tracking updates.
RETURNS
RETURNS
Changed your mind? Not completely satisfied? No problem.
You can return your item within 30 days of receiving your order.
Our returns process is simple, fast, and hassle-free.
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