Vacuum Tube Hybrid Integrated Amplifier Tube Digital Amplifier FX-AUDIO- TUBE-04J [Black] (Vacuum + IC)

【Important Notice for International Buyers – Tomoayax Premium Audio Hi-Fi Japan】

■ Voltage Compatibility This product is designed exclusively for use in Japan (AC 100V, 50/60Hz).

Many regions use 120V or 220–240V. Using this product without a proper transformer in such voltage environments may result in malfunction, overheating, or serious and irreversible damage.

■ Plug Type This product uses a Japanese plug (Type A or B). A plug adapter may be required depending on your region.

■ Transformer Requirement (Very Important) A transformer is required for safe use.

A plug adapter only changes the plug shape and DOES NOT convert voltage. Using this product without a transformer may cause serious and irreversible damage.

■ Buyer Responsibility As this is high-end audio equipment, the buyer is fully responsible for confirming compatibility with their local voltage (100V / 120V / 220–240V) and usage environment before purchase.

■ No Return / No Refund Policy We do NOT accept returns or refunds for: ・Voltage mismatch (including 120V and 220–240V environments) ・Use without a transformer ・Plug incompatibility ・Damage caused by improper setup or usage

■ Liability We are not responsible for any damage, malfunction, or performance issues caused by improper use or incorrect voltage conditions.

■ Final Notice Please ensure full understanding of the above before purchasing. Use only under the correct voltage environment. Vacuum tube hybrid integrated amplifier The 6K4 is used as the standard included vacuum tube. The power amplifier section is composed of a Yamaha YDA138. AC adapter required (sold separately) DC12V/2A DC jack 5.5mm x 2.1mm (center positive) This product is a hybrid integrated amplifier combining a vacuum tube preamplifier and a digital amplifier, featuring a YAMAHA "YDA138" digital amplifier IC and a maximum 12W x 2ch stereo output. A new challenge has begun for FX-AUDIO-! The vacuum tube preamplifier circuitry cultivated through the TUBE series, combined with the experience gained from producing numerous digital amplifiers. A dream vacuum tube hybrid integrated amplifier, where new and old technologies merge on a single circuit board, promises a new audio experience. [Caution] *Please note that the headphone output terminal does not support 4-pole plugs (TRRS). *AC adapter sold separately. Please purchase the recommended AC adapter at the same time. *The device contains high-voltage components, and contact could result in electric shock and injury. It could also cause a fire, so never disassemble or modify it. *Although the vacuum tubes are new, they are dead stock items and may have some dirt or cloudiness on the glass. Please note that this does 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 tubes: 6K4/6J1 Digital amplifier IC: Yamaha YDA138 Function: Headphone amplifier (exclusive use with speaker output) Gain setting (18/24/30/36dB) via DIP switch on the back. Maximum output: 12W + 12W / Compatible speakers: 4Ω to 16Ω Input terminals: Stereo RCA terminals Output terminal: 3.5mm stereo mini jack (headphone output terminal *4-pole plugs are not guaranteed to work) 2-channel stereo speaker output (gold-plated terminals compatible with banana plugs) *Speaker output automatically stops when using the headphone jack. Power supply: Rated voltage DC12V, recommended power capacity 2A or higher (AC adapter sold separately) Power connector: DC jack, outer diameter 5.5mm, inner diameter 2.1mm (center positive) Accessories: Instruction manual, 2 x 6K4 vacuum tubes (the type will be one of the following pairs: Shuguang, Beijing, or Shanghai; you cannot choose the type). Dimensions: Height 33mm (maximum 76mm including vacuum tube) x Width 98mm x Depth 118mm (excluding protrusions) Weight: 345g (with included vacuum tubes installed) *Specifications and design may be changed without notice due to improvements or other reasons.