High resolution compatible 4 digital amplifier USB light optical coaxial digital up to 24bit 192kHz FX-AUDIO- D302J++ [Black] digital/analog

【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/2A or higher DC jack 5.5mm x 2.1mm (center positive) Sound quality comparable to high-end amplifiers full digital amplifier USB input supports high resolution 24bit/192kHz by adopting SA9123L Equipped with 3 digital inputs (high resolution compatible) + 1 analog RCA input High-quality electronic volume and tone control function Nichicon KT series audio capacitors are used as power supply decoupling capacitors. This is a high-quality full digital amplifier that minimizes sound quality deterioration along the route by transmitting digital signals from the input terminal to the digital amplifier IC. Based on the high-resolution fully digital amplifier product "D302J+", this is a high-end model that uses the new generation SAVITECH BRAVO-HD "SA9123L" as the USB receiver chip and supports up to 24bit/192kHz with USB connection. [Notes] *This product is sold separately. A separate AC adapter is required for use. *Operation is not guaranteed for the headphone output terminal with a 4-pole plug (TRRS). *This product does not support DSD or surround input (Dolby Digital, etc.). *Depending on the environment, you may need to configure the audio output settings of the OS when connecting to a PC via USB. *Connection with mobile OS devices such as smartphones and tablets may not be recognized due to device specifications or software compatibility, so operation is not guaranteed. *The product warranty period is 6 months from the date of purchase. [Product specifications] Brand: FX-AUDIO- Product model number: D302J++ Color: black Product warranty period: 6 months from the date of purchase Analog input: [1 system] Stereo RCA terminal Digital input: [3 systems] USB Type B terminal/optical digital audio input (square type)/coaxial digital audio input Headphone output: 3.5mm stereo mini jack *Operation is not guaranteed for 4-pole plugs (TRRS). Supported format: PCM 2ch stereo maximum 24bit 192kHz Output terminal: 2ch stereo speaker output (gold-plated terminal compatible with banana plugs) Maximum output: Maximum 15W x 2ch (when power input is 12V, 4Ω) / Compatible speakers: 4Ω to 16Ω Full digital power amplifier IC: STMicroelectronics STA369BW USB receiver IC: SAVITECH BRAVO-HD SA9123L Audio receiver IC: Cirrus Logic CS8422 ADC IC: Burr-Brown PCM1808 manufactured by Texas Instruments Headphone circuit operational amplifier: Texas Instruments NE5532 Function: 3 digital systems + 1 analog system input switching, tone control function, mute function Power supply: DC12V / Power capacity 2A or more (AC adapter sold separately) Power connector: outer diameter 5.5mm inner diameter 2.1mm (center plus specification) Accessories: Instructions Size: Width 133mm x Depth 108mm x Height 33mm (excluding protrusions) Weight: 410g [Supported OS (USB connection)] Windows 11/ 10/ MacOS X/9.1 or later USB AUDIO CLASS 2.0 compatible: Windows10 Creators Update version 1703 build 15063 or later Mac OS X 10.6.4 or later *For Windows 10 or later and MacOS, it operates with the OS standard driver. *Operation is not guaranteed for devices equipped with mobile OS* Connection with a device equipped with a mobile OS may not be recognized due to device specifications or software specifications, so operation is not guaranteed. *While we do not guarantee operation, we have confirmed that it works on some mobile devices, so we will post it here as reference information. ・iPhone6/iPhoneSE/iPhoneXR/iPhoneX (Connection with Lightning to USB 3 camera adapter) *Specifications and design may change without notice due to improvements or other reasons.