6J1 TUBE Series Replacement Vacuum Tubes Selected Upgrade for FX-AUDIO- (2-pack), Mil-Spec Grade, TUBE-01J

【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. Mil-spec selected grade (premium quality) vacuum tubes, set of 2. This is an upgrade vacuum tube set for the FX-AUDIO- TUBE series. Special grade vacuum tubes, selected from military-grade tubes with even more consistent characteristics. Includes a one-week warranty against initial defects. *In the event of any problems, please contact us through your purchase history.* FX-AUDIO- TUBE Series Replacement 6J1 Vacuum Tubes (Set of 2) [New, Dead Stock] These are military-spec selected vacuum tubes, a higher grade than the standard tubes included with the TUBE-00J, TUBE-01, TUBE-01J, TUBE-02J, TUBE-03J, TUBE-03J+, and TUBE-04J models. After the initial shipment sold out, there was no prospect of restocking, but miraculously, it's back in stock! Due to soaring procurement costs, we have reluctantly revised our prices. We appreciate your understanding. Going forward, it is highly likely that continuing to sell the top-of-the-line model will become difficult due to the decrease in available inventory and the resulting increase in procurement costs. Please take this opportunity to purchase it. Even within the selected grade, these are paired from the same production period and in the same box, so their characteristics are in excellent condition. These are dead stock items from the People's Liberation Army. These vacuum tubes were stockpiled for maintenance of Air Force radar systems and are of the highest quality with consistent characteristics. Replace the standard accessories included with the TUBE series and enjoy the difference in sound. Although new, this is a deadstock item, so there may be some minor scratches or stains. Furthermore, although all vacuum tubes are inspected, they are dead stock items, so defects may occur during the subsequent storage period or after delivery. Amazon offers returns and exchanges for defects that occur during normal use. [Compatible Products] FX-AUDIO- TUBE-00J / TUBE-00J LIMITED FX-AUDIO- TUBE-01 FX-AUDIO- TUBE-01J / TUBE-01J LIMITED FX-AUDIO- TUBE-02J FX-AUDIO- TUBE-03J FX-AUDIO- TUBE-03J+ FX-AUDIO- TUBE-04J [Notes] *When installing the vacuum tube, please be sure to carefully check that the pins of the vacuum tube are firmly in the center of the terminals inside the socket. *If the device does not function correctly after installation, please re-install it while checking the contact of the terminals, and try swapping the left and right positions. *Applying excessive force or installing the tube at an angle may cause it to break. Please install with caution. *For use with FX-AUDIO- products only. *If installed on a product from another manufacturer, it may be damaged due to voltage incompatibility, but this will not be covered under warranty. *Beware of low-quality counterfeit products!!