This high-quality, fully digital amplifier minimizes sound quality degradation along the signal path by transmitting everything from the input terminal to the digital amplifier IC using digital signals.
Based on the high-resolution compatible fully digital amplifier product "D302J+", this is a higher-end model that uses the new generation SAVITECH BRAVO-HD "SA9123L" as the USB receiver chip, supporting up to 24-bit/192kHz via USB connection.
[Notes]
*This product does not require a power supply. An AC adapter is required for use.
*The headphone output terminal does not support 4-pole plugs (TRRS).
*This product does not support DSD or surround sound input (Dolby Digital, etc.).
*When connecting to a PC via USB, depending on the environment, the OS audio output settings may need to be adjusted.
*Connection to mobile OS-equipped devices such as smartphones and tablets is not guaranteed as it may not be recognized due to device specifications or software compatibility issues.
*The product warranty period is 6 months from the date of purchase.
【Product Specifications】 Brand: FX-AUDIO-
Product Model: 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
*4-pole plugs (TRRS) are not covered by the warranty.
Supported Format: PCM 2ch Stereo, up to 24-bit, 192kHz
Output Terminal: 2ch Stereo Speaker Output (Gold-plated terminals compatible with banana plugs)
Maximum Output: 15W x 2ch (at 12V power input, 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: Texas Instruments Burr-Brown PCM1808
Headphone Circuit Op-amp: Texas Instruments NE5532
Functions: Digital 3-input + Analog 1-input 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-positive polarity)
Accessories: Instruction manual
Size: 133mm (W) x 108mm (D) x 33mm (H) (excluding protrusions)
Weight: 410g
【Supported OS (USB connection)】
Windows 11/ 10/ MacOS X / 9.1 or later
USB AUDIO CLASS 2.0 compatible: Windows 10 Creators Update version 1703 build 15063 or later, Mac OS X 10.6.4 or later
*For Windows 10 and later and MacOS, it works with the OS standard driver.
*Operation with mobile OS devices is not guaranteed*
Connection with mobile OS devices is not guaranteed as it may not be recognized due to the specifications of the device or software.
*Although operation is not guaranteed, we have confirmed operation with some mobile devices, so we are listing it as reference information.
・iPhone 6/iPhone SE/iPhone XR/iPhone X (connection with Lightning - USB 3 camera adapter)
*Specifications and design may change without notice due to improvements, etc. 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
Uses SA9123L chip, allowing USB input to support high-resolution 24bit/192kHz audio
Equipped with 3 digital inputs (high-resolution compatible) + 1 analog RCA input