Vacuum tube hybrid integrated amplifier Vacuum tube digital amplifier IC FX-AUDIO- TUBE-04J [Black] +

------------------------------------------------------------------------------------------------------------------ 【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. ------------------------------------------------------------------------------------------------------------------ Vacuum tube hybrid integrated amplifier Adopts 6K4 as standard vacuum tube The power amplifier section consists of YDA138 manufactured by YAMAHA. AC adapter required (sold separately) DC12V/2A DC jack 5.5mm x 2.1mm (center positive) This product is a hybrid integrated amplifier of vacuum tube preamp + digital amplifier, which is equipped with YAMAHA's "YDA138" digital amplifier IC, and has a maximum 12W x 2ch stereo output and vacuum tube preamp function. A new challenge for FX-AUDIO- has begun! The vacuum tube preamp circuit cultivated through the TUBE series and the experience of producing numerous digital amplifiers. A dream vacuum tube hybrid integrated amplifier that combines old and new technologies on a single board promises a new audio experience. [Note] *Operation is not guaranteed for the headphone output terminal with a 4-pole plug (TRRS). *AC adapter is sold separately. Please purchase the recommended AC adapter at the same time. *There are high voltage parts inside, and if you touch them, you may be injured by electric shock. Also, never disassemble or modify the product as this may cause a fire. *The vacuum tube is new, but since it is a dead stock product, there may be dirt or dullness on the glass. Please note that this will not affect the quality or sound quality. [Product specifications] Brand: FX-AUDIO- Product model number: TUBE-04J Color: black Product warranty period: 6 months from the date of purchase Compatible vacuum tube: 6K4/6J1 Digital amplifier IC: YDA138 made by YAMAHA Function: Headphone amplifier *Speaker output and exclusive use Gain setting (18/24/30/36dB) back side DIP switch Maximum output: 12W+12W / Compatible speakers: 4Ω ~ 16Ω Input terminal: Stereo RCA terminal Output terminal: 3.5mm stereo mini jack (headphone output terminal *4-pole plug is not guaranteed) 2ch stereo speaker output (gold-plated terminal compatible with banana plugs) *Speaker output automatically stops when using the headphone jack. Power supply: Rated voltage DC12V, power supply capacity 2A or more recommended (AC adapter sold separately) Power connector: DC jack outer diameter 5.5mm inner diameter 2.1mm (center plus specification) Accessories: Instruction manual, 2 6K4 vacuum tubes (one pair of Shuguang, Beijing, and Shanghai types cannot be selected) Size: Height 33mm (maximum 76mm including vacuum tube) x Width 98mm x Depth 118mm (*excluding protrusions) Body weight: 345g (with attached vacuum tube attached) *Specifications and design may change without notice due to improvements or other reasons.