Description

amazing preamp! ill add 4 more vacuum tubes and the psu that i purchased myself. Product information Product description This is a preamplifier. It's not an power audio amplifier. Must be connected to active speakers or a power amplifier. Power supply: DC12V 2A Audio input: RCA LINE, Connect to MP3 player, computer CD, DVD, mobile phone, etc. Audio output: Connect to amplifier, active speaker, other signal inputs With treble and bass adjustment Specifications: Bluetooth 5.0 QCC3003 Bluetooth & AUX switch selection Size (L x W x H): 137 x 120 x 35MM (without tube height) Main Specifications Uses 6J1 tube. The main filter capacitor is imported from 1000UF/25V, and the coupling capacitor is imported along with 1UF Philips capacitor. This resistor uses 5-ring 1% metal resistor to ensure good signal-to-noise ratio. The PCB adopts 1.6mm thick double-sided sheet, 2.0oz copper thickness, and the whole process of tin spraying ensures the current good passing performance. The inputs and outputs are made of gold-plated RCA lotus sheets.