Op-amp with TIhigh standard OPA1612 op-amp 2，OPA604op-amp 2 op-amp unit gain stability in a wide range of conditionscan maintain excellent dynamic performance, but also moreconvenient for customers to upgrade their own polished sound.
The AK4499EX, is coupled with the digitalmodulation chip, the AK4191 decoder circuit, and thedigital-to-analogue chip is split.The AK4499EX is based on the predecessor of its AK4499current output DAC.The new design uses the "latest high qualitysound technology" and a separate digital/analoque solution toachieve as close to the original sound experience as possible.And when used together with the AK4191, the sample rateDSD is the ideal analoque conversion solution for ultra-high
resolution sound sources.In addition the AK4499EX exceeds its predecessor with a signalto noise ratio of 135dB per channel and a total harmonicdistortion (THD) of -124dB.The natural sound quality of the newDAC comes from the newly developed "DWA (Data Weighted Average)routing technology", which suppresses noise caused by manufacturingprocess factors.
The TPA6120 is an advanced TI headphone amplifier chipwith excellent specifications and powerful driving powerexcellent dynamics and professional internal headphonedriving circuitry，compatible with 99% of the headphoneson the market.
| Specifications | |
| Power Supply | DC12V2A(5.5*2.5mm) |
| Audio input | USB-PC (OTG support) |
| OPT | |
| COA | |
| Bluetooth 5.3 | |
| Audio output | RCA |
| AUX 3.5 | |
| Chip | DAC: AK4499EX/AK4191 |
| Op Amp: OPA1612*2/OPA604*2 | |
| Bluetooth : QCC5171 | |
| General | Weight: 0.48kg |
| Size: 165*139*40mm | |
| Meterial:Metal | |
| SNR:>DB124 | |
| Headphones Impedance: 32-600Ω | |
| DSD Sampling Frequencies：2.8224 MHz (DSD64),5.6448 MHz (DSD128),11.2896 MHz (DSD256),22.5792 MHz (DSD512) | |
| PCM Word Length：16-bit,24-bit,32-bit | |
| PCM Sampling Frequencies：44.1 kHz,48 kHz,88.2 kHz,96 kHz,176.4 kHz,192 kHz,352.8 kHz,384 kHz | |
| Bluetooth support: LDAC，APTX-HD，APTX，SBC，AAC | |
| Package |
amplifier host *1
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