Stereo Buffer 6J5 (Upgrade 6J1) Bluetooth 4.2 Tube Preamplifier HiFi Amplifier

6J5 tube tone preamp Bluetooth 4.2 Bluetooth Preamplifier Product details: 1. Using 6J5 tube, NE5532 2. The main filter capacitor uses the 470UF/25V, and the coupling capacitor uses the capacitor 1UF. 3. The resistor uses high-precision resistor to ensure a good signal-to-noise ratio of the whole machine. 4. adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickne, and tin-spraying proce to ensure good paing performance of large and small currents. First-cla quality. 5. The input and output are made of gold-plated RCA lotus seat, which is durable and beautiful! 6. The board layout is reasonable, beautiful, and the current is small. Basic parameters: Power supply: DC12V 1A-2A ( needs to be regulated by 12V, not higher than 12V) Machine size: about 129* 100* 35MM (without tube height) Panel function: switch adjustment ba adjustment total volume Note: 1. This finished machine is a preamplifier, not an amplifier. It should be used with a post-amplifier or an active speaker. It is not allowed to directly connect paive speakers, speakers and earphones to the power amplifier; if it is not used, the car will be burnt if the voltage is unstable. It doesn't support phonograph connection, it can't work to connect to the phonograph and may also damage our products. 2. The probability that the normal audio line or power supply is not good enough to cause the noise at the bottom noise is very high. It is recommended to use a good audio cable or power supply. 3. Make sure that there is no problem with your source. The preamplifier itself has a preamplifier function. If the source itself is noisy, then the preamplifier will only amplify its noise. Please use a good source test. 4. Check if the tube is plugged into the base. Please insert the tube and the base. Be sure to insert the tube in case of power fai. Packaging: 1* Tube Amplifier 2* Tube 1* Power Adaptor(Optional) 1* Bluetooth

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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