Douk Audio T3 PLUS Vacuum Tube 6A2 Preamp Phono PHONO Stage Desktop Record Player Headphone Amplifier MM/MC

---------------------------------------------------------------------- 【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. ----------------------------------------------------------------------

Multiple Audio Inputs for Different Purposes: Equipped with 3.5mm AUX and phono inputs, supports both MM/MC cartridges, has MC input impedance settings, and is compatible with a variety of MM/MC record players and other audio devices. Headphone output and exquisite design: Can be used as a headphone amplifier to drive 32-300Ω headphones. Adopts reasonable and advanced circuit and high quality components. (Example: Adopts 3 JRC2608 operational amplifiers) Pluggable tube design and HiFi sound: Using 6A2 vacuum tubes, it is warm, delicate, and mellow, making the sound much softer and easier to listen to. Direct replacement for 6J1/6J4/GE5654/6AK5/6*1N to enjoy different sound styles. Special Appearance and Appropriate Size: The vertical arrangement design is more beautiful and fashionable, and the black solid aluminum chassis looks cool and elegant, which is very suitable for audiophiles who enjoy both hearing and visual enjoyment and pursue HiFi sound. Please note: 1. The DIP switch on the side is only in MC mode, and only plays the role of adjusting the impedance matching with the gramophone (for example, if the gramophone is marked "Gramophone impedance is 470Ω", turn on the corresponding 470Ω switch), but not the function of adjusting the volume. 2. Since AUX is given priority, if there is no sound, please make sure that the AUX cable is unplugged. 3. Not compatible with record players with built-in phono amplifiers. 4. Regarding the side dial switch, when adjusting it, use tweezers or a small screwdriver to slowly turn it on. No need to switch frequently. 5. Difficulty inserting tubes is a common problem in the HIFI industry. Mostly because the tube pins are a little distorted. In this case, you can easily insert it into the socket with a simple adjustment by hand. In the unlikely event that only one channel does not produce sound, it may be due to a poor connection due to the vacuum tube of that channel not being inserted deep into the channel, or there may be a problem with the vacuum tube itself. Please make sure that the vacuum tube is inserted all the way and try swapping the left and right vacuum tubes.