Upgraded Preamplifier Amplifiers HiFi Tube Preamp Amp Speaker Sound Home Theater

<p><strong>Specification:</strong><br>This product is a tube preamplifier and needs to be connected to an active speaker or power amplifier.<br>It cannot be directly connected to car speakers and passive speakers, headphones, and phono amplifiers.<br>Product name: Tube preamplifier<br>Tube: 6A2 (tube disassembled)<br>Power supply: DC12-16V, current 1A or more (DC12V 1.5A power supply is recommended) (without power supply)<br>Power socket: DC3.5/5.5*2.1<br>The product supports replacement tubes: 6J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 6AK5 6AU6 6BA6 6BD6 EF93 6K7 GE5654, etc.<br>Preamplification factor: voltage amplification 5 times<br>Preamp frequency response: 5HZ-500KHZ<br>Pre-level sensitivity: 3V<br>Audio input: mobile phone, CD, computer, TV, MP3 and other low-level signal inputs.<br>Audio output: connect to power amplifier or active speakers<br>Size: 87*75MM<br><br>notes:<br>The tube preamplifier is in Class A amplification state. It is recommended to use shielded wires for signal lines. Shared wires may cause leakage or noise.<br>The high-fidelity lift can be adjusted freely, and has a waveform switch with three levels of adjustment.<br>The switch on the far left is<br>The switch is located in the middle and can be raised<br>The switch on the far right is elevator number two.<br><br>notes:<br>1. If the signal line is not shielded or the power supply is not filtered well, noise may be generated. It is recommended to use shielded wire and clean power supply for testing.<br>2. Fill the tube with buffer approximately 5 times. The preamplifier has an amplification function and is connected between the audio source, preamplifier and power amplifier. The noise from the sound source is amplified, please use a good sound source for testing.<br><br><strong>Package Included:</strong><br>1 x 6A2 tube preamp (without power supply)<br><br><strong>Note: </strong><br>1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.<br>2.Please allow slight manual measurement deviation for the data.</p>

• This product is a tube preamplifier and needs to be connected to an active speaker or power amplifier.
• It cannot be directly connected to car speakers and passive speakers, headphones, and phono amplifiers.
• Product name: Tube preamplifier
• Tube: 6A2 (tube disassembled)
• Power supply: DC12-16V, current 1A or more (DC12V 1.5A power supply is recommended) (without power supply)