FX-AUDIO- YD-202J YDA138 Digital Integrated Amplifier with Dual Mono Drive, USB Input, and Built-in DAC (Black)

This is a dual-mono digital amplifier equipped with two Yamaha YDA138 digital amplifier ICs. It's a multi-functional model with features like a USB-DAC, three-input switching, electronic volume and tone control, headphone amplifier, loudness control, and gain boost, making it a fun amplifier to play with.

It was originally developed as a completely in-house design as a successor to the Lepai LP-2020A+, which we previously sold, inheriting the functionality and sonic characteristics of the LP-2020A+. However, after collecting feedback from the sale of a prototype batch, we changed it to a pure-line concept that takes advantage of the characteristics of the dual-mono configuration, further improving the sound quality and operability!

The sixth batch will be available on May 7, 2021. [Changes from Lot 5 to Lot 6] Changed the capacitor in the output stage LPF circuit. For more details, click here: http://nfj2019.livedoor.blog/archives/9594193.html

[Product Features - Functionality]

■3-input switching (USB-DAC/3.5mm STEREO/RCA) ■Built-in USB-DAC (Supported formats: up to 16-bit 44.1kHz/48kHz) ■Loudness control (ON/OFF) ■Gain boost (ON: +11.25dB / OFF: 0dB) ■Mute function (ON/OFF) ■Tone control (TREBLE: ±14dB [±7 steps] / BASS: ±14dB [±7 Steps]

Product Features - Sound Quality

Dual Mono Digital Amplifier Dual Mono Headphone Amplifier DSP-Based Electronic Volume and Tone Control Operational Amplifier Buffer Circuit Power Supply Noise Reduction Circuit

Notes

- This product requires a power supply sold separately. Please purchase an AC adapter separately. Recommended AC Adapter: https://www.amazon.co.jp/dp/B01M4JK604 - The 3.5mm stereo mini jack input terminal is not guaranteed to work with a 4-pole plug (TRRS). - The headphone output terminal is not guaranteed to work with a 4-pole plug (TRRS).

[Product Specifications]

Color: Black Warranty Period: 6 months from the date of purchase Digital Amplifier IC: Two Yamaha YDA138 digital amplifier ICs (dual mono configuration) DSP IC: Titan Electronics TM2313 Hi-Fi Audio Processor USB-DAC IC: C-Media HS100B Input Terminals: [LINE-IN1] Stereo RCA / [LINE-IN2] 3.5mm Stereo Mini Jack / [USB] USB Type-B Input Switching: 3 Inputs (RCA/3.5mm/USB) Output Terminals: 2-Channel Stereo Speaker Output (Gold-Plated Banana Plug Compatible) / Front Headphone Jack (3.5mm Stereo Mini Jack) Headphone Output: Maximum Output 50mW x 2 Channels (@32Ω) Main Amplifier Maximum Output: Maximum Output 20W x 2 Channels (12V Power Input, 4Ω) Speaker Support: 4Ω to 16Ω Compatible OS: Windows 11/10/8 (8.1), 7/Vista / XP / 2000 / MacOS X / 9.1 or later Power Supply: DC12V, 2A or higher recommended (AC adapter sold separately) Power Connector: 5.5mm outer diameter, 2.1mm inner diameter (center positive) Features: Gain boost, 3-channel input switching, independent mute control, loudness control, tone control (control setting reset) Protection Circuits: Enhanced pop noise reduction, overcurrent protection (output short circuit protection), overheat protection Accessories: Remote control, simple instruction manual Dimensions: 35mm high x 117mm wide x 100mm deep (excluding protrusions) Weight: Approximately 360g

Specifications and design may be changed without notice for product improvement reasons. Equipped with tone control, loudness control, gain boost, and mute functions. 3-channel (RCA/3.5mm/USB) input switching, electronic volume, USB-DAC, and built-in headphone amplifier. Two Yamaha YDA138 digital amplifier ICs for dual mono drive. Includes dedicated remote control. AC adapter required (sold separately): DC12V/2A, DC jack 5.5mm x 2.1mm (center positive)