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Mini HiFi Stereo Pre-Amplifier Vacuum Preamp with Treble & Bass Tone Control

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 % 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