Electronic Tube Preamplifier Multifunctional Tube Amplifier Preamp Bile Buffer Auido Amp Speaker Sound Amplifier Home Theater DIY Module

computers, TV, MP3, and so on. With a toggle switch, three gears adjustable, free to adjust as you wish. Duitable for a variety of power 12-16VDC, current 1A or more. Such as a power adapter, rechargeable battery, and switching powersupply.¡¾Three Gears Adjustable¡¿: With a toggle switch, three gears adjustable, free to adjust as you wish.¡¾Multiple Power Supplying Ways¡¿: Duitable for a variety of power 12-16VDC, current 1A or more. Such as a power adapter, rechargeable battery, and switching powersupply.¡¾Positioner with Switch¡¿: Turn the knob clockwise to the "ticking" sound, the indicator lights up, to the minimum volumes, and continue to turn clockwise to increase the volumes.¡¾Electronic Tube Filament¡¿: The filament is a direct current 12 V powersupply. The filament of the two tubes is connected in series, using a direct current filament powersupply to reduce noise. The electronic tube should be completely inserted to see the electronic tube filament bright red light, note that the backlight is also red, and the electronic tube filament to light the machine to operate.¡¾Amplification Function¡¿: Electronic tube buffer with about 5 times amplification, connected between the audio source and the preamplifier and amplifier, can effectively filter the digital taste, cost-effective.Notes:This preamplifier with amplification function, if your source itself noise will be the source of its noise together with amplification, so please use a fine quality source test.Specifications:Name: Tube PreamplifierMaterial: plasticsPower supplying: 12-16VDC, current 1A or moreItem size: 110 * 75 * 35mm / 4.33 * 2.95 * 1.38inItem weight: 152g / 5.36ouncePackage size: 150 * 150 * 50mm / 5.91 * 5.91 * 1.97inPackage weight: 220g / 7.76ouncePacking List:1 * Tube Preamplifier