Description:

The main filter capacitor uses the original imported capacitor, the capacitance capacity is 1000UF/25V; the coupling capacitor uses the imported capacitor, and the capacitor capacity is 1UF.
The resistor uses a five- 1% metal resistor to ensure a good signal-to-noise ratio.
The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and the whole process of tin-spraying ensure the current is good passing.
The input and output are gold-plated RCA lotus seat, which is durable and beautiful.
Using the high quality original electron tube ; the board wiring is reasonable, beautiful, and the current is small.
Audio input: can be connected to MP3, computer CD/DVD, mobile phone, etc. (signal output).
Audio output: can be connected to amplifier, active speakers, etc. (signal input).

Specification:

Power supply: DC12V 2A (DC)
Size: approx. 137x104x41mm/5.39x4.09x1.61inch (not include tube height)
Potentiometer function: from left to right bass / treble / volume adjustment

Package Includes:

1Piece Vacuum Tube Pre-Amplifier

Note:

This product is a preamplifier, not a power amplifier. It should be used with a post-amplifier or an active speaker. It can not directly connect a passive speaker, a speaker or a headphone as a power amplifier; it cannot be used for car, because the car voltage is unstable and will burn.
Please allow slightly difference due to manual measurement.
Color may be slightly different since different monitor.