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Upgraded for Pre s HiFi Tube Preamp Amp Speaker Sound Home Theater

<ul><li>【Improved Preamplifier Performance】: This tube preamplifier is designed to enhance the performance of your audio system, delivering sound with enhanced and depth. It is compatible with active speakers and power amplifiers, providing an improved audio experience for home theater setups.</li><li>【 Tube Options】: The preamplifier supports various tube replacements, including 6J1, 6J2, 6J3, 6J4, 6J5, 6A2, 6K4, 6K5, 6AK5, 6AU6, 6BA6, 6BD6, EF93, 6K7, GE5654, and more. This allows you to customize the sound signature to your preferences and experiment with different tube combinations for optimal sound reproduction.</li><li>【Wide Frequency Response and Sensitivity】: With a frequency response range of 5Hz-500kHz, this preamplifier ensures a wide and balanced audio reproduction, capturing both low and high frequencies with precision. The pre-level sensitivity of 3V ensures compatibility with various audio sources like mobile phones, CDs, computers, TVs, and more.</li><li>【Class A Amplification and Noise Reduction】: The preamplifier operates in Class A amplification state, providing a cleaner and more accurate signal transmission. It is recommended to use shielded wires for line connections to minimize potential noise and interference, a pristine audio output.</li><li>【Compact and for Durable Design】: Measuring 87mm x 75mm in size, this preamplifier is compact and easy to integrate into your audio setup. Its sturdy construction ensures long-lasting durability, and the included 6A2 tube adds a touch of elegance. Enhance your home theater experience with this upgraded tube preamp.</li></ul>

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Specification:This product is a tube for pre and needs to be connected to an active speaker or power .It cannot be directly connected to car speakers and passive speakers, headphones, and phono s.Product name: Tube for preTube: 6A2 (tube disassembled)Power supply: DC12-16V, current 1A or more (DC12V 1.5A power supply is recommended) (without power supply)Power socket: DC3.5/5.5*2.1The product supports replacement tubes: 6J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 6AK5 6AU6 6BA6 6BD6 EF93 6K7 GE5654, etc.Preamplification : voltage amplification timesPreamp frequency response: 5HZ-500KHZ for pre-level sensitivity: 3VAudio input: mobile phone, CD, computer, TV, MP3 and other low-level signal inputs.Audio output: connect to power or active speakersSize: 87*75MMnotes:The tube for pre is in Class A amplification state. It is recommended to use shielded wires for signal lines. Shared wires may cause leakage or noise.The high-fidelity lift can be adjusted freely, and has a waveform switch with three levels of adjustment.The switch on the far left isThe switch is located in the middle and can be raisedThe switch on the far right is elevator number two.notes: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.2. Fill the tube with buffer approximately 5 times. The for pre has an amplification function and is connected between the audio source, for pre and power . The noise from the sound source is amplified, please use a good sound source for testing.Package Included:1 x 6A2 tube preamp (without power supply)Note: 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.2.Please allow slight manual measurement deviation for the data.

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