Xduoo Class A Vacuum Tube Headphone Amplifier Preamplifier Output Stereo Audio Vacuum Tube Amplifier Tube Amplifier Hifi Vacuum Tube Headphone

Welcome to MJ Select. We are Japanese seller. We ship authentic items from Japan. Please enjoy shopping with peace of mind! ----------------------------------------------------------- 【About Included Manuals】 If a manual is included, it will primarily be in Japanese. We recommend using image translation apps if needed. 【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. ----------------------------------------------------------- The front tube amplifier and rear transistor combine the advantages of two amplifier circuits to achieve the ideal sound effect, allowing you to immerse yourself in the happy atmosphere of music. A double 6J1 tube is used for the purine amplifier. Make your voice sweet and exquisite. A transistor is used for the class A buffer, and the maximum output power is 1300mW. It can easily drive many types of headphones. Adopting Japan's Rubicon capacitance as the main fitter capacitance, it has a smooth, warm sound and wonderful high frequency. Built-in relay for mute circuit when the amplifier is turned on to avoid POP noise and ensure the tubes work at their best. parameter: Power supply: DC12V/1A Gain: +15dB Output power: 1300mW (32Ω) Size: 12*7. 8*4cm THD+N: 0.1% (1KHz & 32Ω) Weight: 0.38kg Frequency response:: 10Hz~60KHz (±0.5dB) S/N: 115dB Suitable headphone impedance:: 16~600Ω