This digital amplifier features a dual-mono amplifier configuration with two YAMAHA YDA138 digital amplifier ICs.
It's a multi-functional and fun amplifier equipped with features such as USB-DAC functionality, 3-input switching, electronic volume control, tone control, headphone amplifier, loudness control, and gain boost.
Initially, it was developed as a completely in-house design, inheriting the functions and sound characteristics of our previously sold Lepai LP-2020A+.
However, after gathering feedback from the prototype batch, we changed the concept to a pure line that leverages the characteristics of the dual-mono configuration, further improving sound quality and operability!
This is the 6th batch, available from May 7th, 2021.
[Changes from the 5th to the 6th lot]
Changed the capacitor in the output stage LPF circuit
Details 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 16bit 44.1kHz/48kHz)
■ Loudness function (ON/OFF)
■ Gain boost function (ON: +11.25dB / OFF: 0dB)
■ Mute function (ON/OFF)
■ Tone control function (TREBLE: ±14dB [±7 Step] / 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 does not include a power supply. 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 4-pole plugs (TRRS).
・The headphone output terminal is not guaranteed to work with 4-pole plugs (TRRS).
【Product Specifications】
Color: Black
Product Warranty Period: 6 months from the date of purchase
Digital Amplifier IC: YAMAHA YDA138 Digital Amplifier IC x 2, Dual Mono Configuration
DSP IC: Titan Electronics TM2313 Hi-Fi Audio Processor
USB-DAC IC: C-Media HS100B
Input Terminals: [LINE-IN1] Stereo RCA terminal / [LINE-IN2] 3.5mm stereo mini jack / [USB] USB Type-B terminal
Input Switching: 3 systems (RCA/3.5mm/USB)
Output Terminals: 2ch stereo speaker output (gold-plated terminals compatible with banana plugs) / Front headphone jack (3.5mm stereo mini jack)
Headphone Output: Maximum output 50mW x 2ch (@32Ω)
Main Amplifier Maximum Output: Maximum 20W x 2ch (at 12V power input, 4Ω)
Compatible Speakers: 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: Outer diameter 5.5mm, Inner diameter 2.1mm (Center positive)
Functions: Gain boost function, 3-input switching, independent MUTE control, loudness function, tone control function (control setting reset)
Protection Circuits: Bop noise reduction function (enhanced), overcurrent protection function (output short circuit protection), overheat protection
Accessories: Remote control, quick start guide
Dimensions: Height 35mm x Width 117mm x Depth 100mm (excluding protrusions)
Weight: Approx. 360g
*Specifications and design may change without notice due to improvements, etc.
Features tone control, loudness control, gain boost, and mute function.
Three input options (RCA/3.5mm/USB), electronic volume control, built-in USB-DAC and headphone amplifier.
Two Yamaha YDA138 digital amplifier ICs; dual-mono drive digital amplifier.
Dedicated remote control included as standard.
AC adapter required (sold separately): DC12V/2A, DC jack 5.5mm x 2.1mm (center positive).
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