Vacuum tube preamplifier with high resolution compatible DAC output Subwoofer output terminal Tone control function USB optical 3 analog inputs

------------------------------------------------------------------------------------------------------------------ 【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. ------------------------------------------------------------------------------------------------------------------ AC adapter required (sold separately) DC12V/1.5A or higher DC jack 5.5mm x 2.1mm (center positive) Preamplifier that uses twin triode “6N3” vacuum tubes Adopts ES9018K2M for D/A conversion part IC・Adopts LM4562 operational amplifier for single-end conversion part Supports high resolution 24bit/192kHz with USB input / Equipped with a subwoofer output terminal that supports 2.1ch output Equipped with a total of 3 input switching functions: 1 analog + 2 digital A dream fusion of vacuum tube preamp and high resolution DAC! The highly requested vacuum tube preamp and DAC have finally been combined into one unit! This is a vacuum tube preamp product with a total of 3 inputs, 1 analog and 2 digital, and is equipped with a high-performance high-resolution DAC. Furthermore, we have made it a 2.1ch output preamplifier with a subwoofer output terminal, which was a popular request. Near field use and bookshelf speakers tend to lack bass, but with a subwoofer output terminal, If you prepare a separate powered subwoofer or monaural amplifier + passive subwoofer, the problem of lack of bass will be solved! Since it 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, you can add the characteristics of vacuum tubes to produce a pleasant sound. The warm, light, and clear sound produced by the vacuum tube preamplifier allows anyone of any generation to experience the "joy of enjoying music." In addition to the pre-out output, it is equipped with a subwoofer output terminal, allowing you to build a 2.1ch system by simply preparing and connecting a separate subwoofer. It is also easy to install a subwoofer into an existing system. [Notes] *The product warranty period is 6 months from the date of purchase. *This product is sold separately. A separate 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 an amplifier. *Compatible vacuum tubes are only 6N3 or 5670. *6n5p and 6080 are vacuum tubes that are said to be compatible, but these vacuum tubes are not compatible. *Operational amplifier replacement is not covered by the 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 terminal Digital input: [2 systems] USB Type B terminal Optical digital audio input (square type) Digital input compatible format: PCM 2ch stereo maximum 24bit 192kHz Analog output: stereo RCA terminal Subwoofer output: RCA terminal DAC IC: ES9018K2M manufactured by ESS Technology USB receiver IC: C-media CM6642 Single-ended conversion unit operational amplifier: Texas Instruments LM4562 Subwoofer output circuit operational amplifier: Texas Instruments NE5532 Function: 3 system input switching Tone control (BASS/TREBLE) subwoofer output Power supply: DC12V / Power capacity 1.5A or more (AC adapter sold separately) Power connector: outer diameter 5.5mm inner diameter 2.1mm (center plus specification) Accessories: 2 6N3 vacuum tubes, manual Size: Width 133mm x Depth 160mm x Height 33mm (excluding protrusions) Weight: 605g [Supported OS (USB connection)] USBAudioClass 1.0 compatible: Windows 11/10/8(8.1) & 7/Vista/XP/2000/ MacOSX/9.1 or later *Works with OS standard driver USBAudioClass 2.0 compatible: Windows10CreatorsUpdate version 1703 build 15063 or later MacOSX10.6.4 or later *Specifications and design may change without notice due to improvements or other reasons.