HiFi Tube Preamp Stereo 4 Way Audio Switcher Box Desktop Headphone Amplifier (SA-1000)

------------------------------------------------------------------------------------------------------------------ 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ------------------------------------------------------------------------------------------------------------------ Tube Preamp & Audio Switcher & Headphone Amplifier: 4 RCA inputs, 2 RCA and 3.5mm headphone jack outputs, both audio selector and splitter, no need to repeatedly plug and unplug cables; computers, smartphones, CD players It is compatible with many audio devices such as, greatly improves the sound quality of your sound system. Mysterious vacuum tube built-in design: pluggable Soviet Union 6H3N tubes filter all digital sensations, the sound is warm and mellow, clear and delicate, and every detail is vividly displayed, providing a live listening experience The classic NE5532 op amp makes it easy to make most headphones. Separate Tone Knob and Input Selector: Separate treble and bass controls allow you to adjust specific ratios of treble and bass components to give your music exciting highs and deep bass. You can. You can also use the input switch knob to freely select between 4 RCA inputs. Exquisite Appearance and Great Design: Appropriate size looks cool and attractive, vintage and warm VU meters and tubes can decorate your desktop, powerful performance brings you great auditory and visual enjoyment. Please note: 1.All outputs (RCA and 2 groups of 3.5mm headphone jacks) can be output at the same time. 2.Default Soviet Union 6H3N tube can be replaced with Beijing 6N3/Soviet Union 6H3N-E, etc.