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Packaging Details - Unit Type:piece
- Package Weight:0.45kg (0.99lb.)
- Package Size:15cm x 12cm x 8cm (5.91in x 4.72in x 3.15in)
Packaging Details - Unit Type:piece
- Package Weight:0.45kg (0.99lb.)
- Package Size:15cm x 12cm x 8cm (5.91in x 4.72in x 3.15in)
product details: 1. Using original 6J1 tube 2. The main filter capacitor is imported from 1000UF/25V, and the coupling capacitor is 1UF. 3. The resistor uses a five-ring 1% metal resistor to ensure a good signal-to-noise ratio. 4.PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and spray tin full process to ensure good passing performance of large and small currents. First-class PCB 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 2A (DC) Net weight: 0.4KG Size: length 137* width 104* height 41MM (without tube height) Tips: First, this finished machine is a preamplifier, not a power 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. Second, the general audio line or power supply filtering is not good, resulting in a very high probability of noise at the bottom noise. It is recommended to use a good audio cable or power supply. Third, to ensure that there is no problem with your own audio source, the preamplifier itself has a preamplifier function. If the source itself has noise, then the preamplifier will only amplify its noise. Please use a good source test. 4. Check if the tube is plugged in with the base. Please insert the tube and the base. Be sure to insert the tube in case of power failure. -->
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