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

Multiple audio inputs for different purposes: Equipped with 3.5mm AUX and phono inputs, supports both MM/MC cartridges, and has MC input impedance settings, compatible with various MM/MC record players and other audio devices Compatible. 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 auditory and visual enjoyment and pursue HiFi sound . Note: 1, The DIP switch on the side is only in MC mode, and serves to adjust the impedance matching with the gramophone (for example, if the gramophone is marked "Gramophone impedance is 470Ω", the corresponding 470Ω (turn on the switch), it is not a function to adjust 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.