Product details:1. Using 6J1 tube. 2. The main filter capacitor is imported 1000UF/25V and the coupling capacitor is imported 1UF.
3. Five-ring 1% metal resistance is selected to ensure good signal-to-noise ratio of the whole machine.4. PCB uses 1.6mm thick double panel, 2.0A thick copper, tin spraying process to ensure the good passing performance of large and small currents. First-class PCB quality.
5. Gold-plated RCA lotus pedestal is used for input and output, which is durable and beautiful.6. The board has reasonable wiring, beautiful appearance and low current and sound.
Color: black + silver; Material: plastic + metal; Maximum Power Per Channel:NO POWER; Model Number:None
Working power supply: Recommend DC12V2A
Size: 137 * wide 104 * high 41MM (without tube height)
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 passive speakers, speakers and earphones to the power amplifier; if it is not used, the car will be burnt if the voltage is unstable.
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 failure.
You need to bring your own power supply, the package only one 6J1 Tube Preamplifier included.
This product is a Bluetooth bilepreamplifier. It has a buzzing due to the influence of the high-frequency Bluetooth signal on the boot, which is a normal phenomenon and does not affect normal use, It's not about product quality. When you play music, the buzz is gone.
1 * 6J1 Tube Preamplifier
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.