Audio Compatible Vacuum Tube Preamplifier Output Subwoofer Output Terminal Tone Control Function USB Optical 3 Analog Inputs FX-AUDIO- TUBE-D06J

【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. AC adapter required (sold separately). DC 12V/1.5A or higher. DC jack 5.5mm x 2.1mm (center positive). A preamplifier employing the dual triode "6N3" vacuum tube. The D/A conversion section uses the ES9018K2M IC, and the single-ended conversion section uses the LM4562 operational amplifier. It supports high-resolution audio (24-bit/192kHz) via USB input and is equipped with a 2.1ch output subwoofer output terminal. It features a three-input switching function with one analog input and two digital inputs. A dream fusion of a vacuum tube preamplifier and a high-resolution DAC! The highly requested vacuum tube preamplifier and DAC have finally been combined into a single unit! This vacuum tube preamplifier features a total of three inputs—one analog and two digital—and incorporates a high-performance, high-resolution compatible DAC. Furthermore, we've added a subwoofer output terminal, a feature that was frequently requested, making it a 2.1ch output preamplifier. While near-field use and bookshelf speaker setups often result in insufficient bass, the inclusion of a subwoofer output terminal allows for this. If you provide a separate powered subwoofer or a mono amplifier + passive subwoofer, the lack of bass will also be solved! As this is a preamplifier product, it can be added to your existing stereo system. For example, by connecting it between your TV or CD player and your amplifier, the characteristics of vacuum tubes are added, producing a pleasant sound. The warm, lively, and clear sound produced by the vacuum tube preamplifier allows people of all generations to experience the joy of enjoying music. In addition to pre-out outputs, it also features a subwoofer output terminal, allowing you to build a 2.1ch system simply by adding and connecting a separate subwoofer. It's also easy to integrate a subwoofer into an existing system. [Notes] *The product warranty period is 6 months from the date of purchase. *This product does not include a power supply. An AC adapter is required for use. *This product is a preamplifier. A separate power amplifier is required to connect to passive speakers that do not have a built-in amplifier. *The only compatible vacuum tubes are 6N3 or 5670. *While 6n5p and 6080 vacuum tubes are said to be compatible, this device does not support these tubes. *Replacing the operational amplifier is not covered under warranty. [Recommended power supply] AC adapter required (sold separately) ▼Recommended AC adapter https://www.amazon.co.jp/dp/B01M4JK604 [Product Specifications] Brand: FX-AUDIO- Product model number: TUBE-D06J Color: Black Compatible vacuum tubes: 6N3 (2 included) / 5670 Product warranty period: 6 months from the date of purchase Analog input: [1 system] Stereo RCA terminals Digital inputs: [2 systems] USB Type-B connector Optical digital audio input (square type) Supported digital input formats: PCM 2ch stereo, up to 24-bit 192kHz Analog output: Stereo RCA terminals Subwoofer output: RCA terminals DAC IC: ESS Technology ES9018K2M USB receiver IC: C-media CM6642 Single-ended conversion section operational amplifier: Texas Instruments LM4562 Subwoofer output circuit operational amplifier: Texas Instruments NE5532 Function: 3-input switching Tone control (BASS/TREBLE) Subwoofer output Power supply: DC12V / Power capacity 1.5A or higher (AC adapter sold separately) Power connector: Outer diameter 5.5mm, Inner diameter 2.1mm (center positive specification) Accessories: 2 x 6N3 vacuum tubes, instruction manual Dimensions: 133mm (width) x 160mm (depth) x 33mm (height) (excluding protrusions) Weight: 605g [Supported OS (USB connection)] USB Audio Class 1.0 compatible: Windows 11/10/8 (8.1) & 7/Vista/XP/2000/ MacOSX/9.1 and later *Operates with OS standard drivers USB Audio Class 2.0 compatible: Windows 10 Creators Update version 1703 build 15063 or later, macOS X 10.6.4 or later. *Specifications and design may be changed without notice due to improvements or other reasons.