Jkjlorey 1 Piece 6K4 Tube Preamplifier Amplifiers HiFi Tube Preamp Bile Buffer As Shown Metal Home Theater DC12-16V

2. Pre-stage working condition: full-frequency output, full-frequency output does not exist there is a lack of any frequency, if you hear the high and low frequency which is less, please check your equipment preamp sensitivity: up to an effective 3V is not distorted! 4. High-quality materials, experience enhanced audio fidelity, restore true sound. Stable product performance, upgraded for a variety of models of bile ducts. Preamplifier frequency response 5HZ-500KHZ, as long as your ears can hear the frequency through the preamplifier is the same as can be heard 3. Tube preamplifier is a class A amplification state (that is, the preamplifier is always amplified state), the signal line is recommended to use with shielding, otherwise it may produce interference with the sound and so on! 1. This line uses the DC boost line power supply DC12V can be boosted to more than 120V power supply; single DC12V1A (DC12V1A), the current is not limited, the voltage does not exceed 16V preamplifier; voltage amplification 5 times, amplification is a little big, hear the distortion can be reduced in moderation volume 5. The preamplifier has a toggle switch with three adjustable , which you can freely adjust according to your own preferences and audio settings. Wide range of applications, support for any low-level signal inputs