Product Description

Parameters
Power supply: DC12V 1A (With power supply)
Audio input: Bluetooth/ AUX (connected to MP3, computer CD, DVD, mobile phone, etc. )
Audio output: RCA (connected to amplifier, active speaker)
Frequency Response:20Hz-20kHz
SNR:98dB
Control:Potentiometer knob and toggle switch
Treble adjustment range:±6dB
Bass adjustment range:±10dB
Size (L*W*H): 137*104*41MM (without tube height)
With treble and bass adjustment
Color: Black with Bluetooth 5.0/ Silver with Bluetooth 5.0 1. Using original 6J1 Tube, Bluetooth 5.0 version
2. The main filter capacitor is imported from 1000UF/25V, and the coupling capacitor is imported with 1UF Philips capacitor.
3. The resistor uses a five-ring 1% metal resistor to ensure a good signal-to-noise ratio.
4. The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and the whole process of tin-spraying ensures the good passing performance of the current. First-class PCB quality.
5. The output is made of gold-plated RCA lotus seat, which is durable and beautiful!
6. The board layout is reasonable, beautiful, and the current is small.
Attention :
The product is a preamplifier. It is not audio amplifier. It needs to be connected to an active speaker and a rear amplifier.
Package included:
1Pcs 6J1 Tube Preamplifier
1Pcs Power Supply

Product Features

• Using classical tube 6j1 design and optimize the route,Bluetooth 5.0 Tube preamp((Note:Cannot be used on a record player and phonographs))
• Tube can be replaced design,soft voice.With treble and bass adjustment
• The power circuit is completely separate from the audio circuit ,in order to Minimize interference
• AUX / Bluetooth Audio input, DC12V/1A power supply(Can’t beyond 12V,Otherwise it will burn out the diode,When you use it in the car, Pls pay attention to that connect use it after your finished ignition .Because when the car starts to fire, the power will reach 13.5V). All aluminum alloy shell,heavy gold PCB,Control ways:Potentiometer knob and Toggle the switch
• The product is a preamplifier. It is not audio amplifier. It needs to be connected to an active speaker and a rear amplifier