Upgraded 6A2 Tube Preamplifier Amplifiers HiFi Preamp Bile Buffer Audio Amp Speaker Sound Amplifier Home Theater DIY

Product description: Power socket: DC3.5/5.5*2.1 Product support replace tube: 6J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 6AK5 6AU6 6BA6 6BD6 EF93 6K7 GE5654 etc. Size: 87*75MM Note: The tube preamp is a class A amplification state.. It is recommended to use shielded wire for the signal wire. Common wires may cause leakage or noise. The high-fidelity lift can be adjusted freely, and the three-gear adjustment with a wave switch. The switch on the far left is "Hi-Fi." Switch in the centre is "Boost 1". The switch on the far right is "Boost 2." Note: 1. If the signal line is not shielded or the power supply is not well filtered, noise may be generated. It is recommended to use shielded wires and a clean power supply for testing. 2. The tube buffer is amplified by about 5 times. The pre-amp has an amplification function, which is connected between the audio source, the pre-amp and the power amplifier. The noise from the audio source is amplified, so please use a good audio source to test. Package included: 1Pcs 6A2Tube Preamp(optional)(without supply power) Related Products:bluetooth receiver,amplifier,stereo system for home,amplifier home audio,bluetooth amplifier,home stereo system,stereo amplifier,receiver,stereo system Pre-stage magnification: voltage magnification 5 timesPre-stage frequency response: 5HZ-500KHZPre-level sensitivity: 3VAudio input: low-level signal input such as mobile phone, CD, computer, TV, MP3, etc.Audio output: connect to power amplifier or active speakers