Mini HiFi 6J1 Vacuum Tube Stereo Audio Pre-amplifier Buffer Preamp Aluminum Alloy with Power Adapter

Features:
Mini pre-amplifier for connecting computer, smart phone, music player to digital power amplifier, active audio devices etc.
It makes your audio devices full of pure and HiFi sound, with excellent performance.
All aluminum alloy shell with compact size, great durable quality and exquisite appearance.
Adopts 6J1 vacuum tubes, removable tube design for convenient replacement and upgrade.
Gold-plated RCA input(L & R) and output (L & R) jacks for reducing distortion and signal loss.
With Treble and Bass adjuster, free for you to get a ideal tone.
12V power supply is included.

Specifications:
Material: Aluminum Alloy
Color: Silver & Black
Tube: 2 * 6J1 Vacuum Tubes
SNR: >=110DB
THD: <0.005%
Power Supply: AC 12V 3A Power Adapter
Power Adapter: US Plug, Input--100-240V 50/60Hz 0.6A, Output--12V 3.0A
Item Size: 12 * 10 * 3cm / 4.7 * 3.9 * 1.2in
Item Weight: 334g / 11.8oz
Package Size: 25 * 18 * 7cm / 9.8 * 7.1 * 2.8in
Package Weight: 600g / 21.2oz

Package List:
1 * Pre-amplifier
2 * 6J1 Vacuum Tubes
1 * Power Adapter

Note:
This product is a pre-amplifier, and it can not directly connect passive speaker, headphones. It needs to be connected with power amplifier for use.