Singxer SDA-6 PRO2 / PRO 2 Dual AK4499EX Digital to Analog Convertor (DAC)
SKU: 81359127326

Singxer SDA-6 PRO2 / PRO 2 Dual AK4499EX Digital to Analog Convertor (DAC)

Sale price$526.10 Regular price$584.55
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Description

Singxer SDA-6 PRO2 / PRO 2 Dual AK4499EX Digital to Analog Convertor (DAC)Features: >New Generation AK4191+Dual AK4499EX DAC chipset. >XMOS XU316 USB Processor. >Decodes 32bit 768kHz PCM and Native DSD512. >Optimized Ultra Low Noise Power Supply System. >Digital Pre Amp Function. >Two Level Gain Modes. >OLED Display Screen. >External 10M Clock Input. >Self Developed Adaptive Clock System. >High performance digital analogue Hybrid Phase Locked Loop. >4 Way Fully Balanced Class A Discrete Output Circuit. >Large FPGA For

Features:-

>New-Generation AK4191+Dual AK4499EX DAC chipset.

>XMOS XU316 USB Processor.

>Decodes 32bit/768kHz PCM and Native DSD512.

>Optimized Ultra-Low Noise Power Supply System.

>Digital Pre-Amp Function.

>Two-Level Gain Modes.

>OLED Display Screen.

>External 10M Clock Input.

>Self-Developed Adaptive Clock System.

>High-performance digital-analogue Hybrid Phase-Locked Loop.

>4-Way Fully Balanced Class A Discrete Output Circuit.

>Large FPGA For Signal Processing.

>Built-in 40-watt Customized O-Type Transformer.

>115V and 230V AC Voltage Support With Internal Toggle Switch.

Singxer SDA-6 Pro 2 is the latest flagship DAC developed with AKM’s new-generation AK4191+dual AK4499EX DAC chips and a custom-developed FPGA signal processing architecture. Singxer has optimized the internals of the SDA-6 Pro 2 to achieve class-leading performance promising quality output with ultra-low distortion and high SNR performance. The SDA6 Pro 2 supports native DSD and 32-bit PCM audio signals!!

New-Generation AKM DAC Chipset:-

Enjoy amazing sound signal decoding performance with a rich, velvety AKM in-house sound. The Singxer SDA6 Pro 2 comes equipped with a new-gen AK4191+Dual AK4499EX DAC chipset. This dual DAC arrangement delivers quality output by providing a natural tone, exquisite details, ultra-clear background, and low distortion performance. The output has amazing dynamics and high SNR performance.

Upgraded XMOS USB Processor Chipset:-

Singxer has upgraded the USB processor chip on the SDA6 Pro 2. It now comes with an XMOS XU316 16-core 3rd generation processor that enables smooth sound signal processing supporting up to 32-bit/76kHz PCM and native DSD512 audio signals. The SDA 6 Pro 2 is a true flagship-level performer in terms of USB Processing and overall performance.

Specially Developed Large-Scale FPGA Architecture:-

In order to achieve smooth digital audio signal processing, SDA-6 Pro 2 features a specially optimized FPGA architecture. It adopts self-developed third-gen algorithms with original multi-input channel isolation technology to ensure the purity of each input mode. Singxer SDA-6 Pro 2 features a high-performance digital-analog hybrid Phase-Locked Loop, that provides excellent clock synchronization recovery technology. It significantly improves the performance by filtering external digital input jitter secondary PLL.

Self-Developed Low-Jitter Clock Architecture:-

Singxer SDA-6 Pro 2 features a self-developed adaptive clock system technology. The DAC has a built-in 4-way independent ultra-low jitter crystal that is configured using a femtosecond clock system for the USB part. The clock architecture is embedded with Singxer’s self-developed thermostat technology to maintain a constant temperature. The SDA-6 Pro 2 also supports external 10M clock input for the USB interface while the other interfaces use WCK input.

Consistent Performance With Premium Power Supply:-

Singxer has a built-in 40-watt customized O-type transformer. The output of the four independent power supply winds up to 20 groups of distributed voltage regulator lines. Both the digital and the analog sections get a proper supply of power ensuring consistent performance in any given scenario. 

Here is the test data for the production version of the SDA-6 PRO, based on the APX555: -

 
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 81359127326

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Reviewed in the United States on April 25, 2026
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San Leandro, US
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Size: 4 Ounce (Pack of 3), Set name: E. Orange Cream, Watermelon Mint, Strawberry Mango
We’ve been using Boka Fluoride Free Toothpaste with Nano‑Hydroxyapatite for a while now, and it has easily become a staple in our household. Finding a toothpaste that is both clean and effective and something my daughter actually enjoys using has always been a challenge, but this one truly checks every box. First, the flavors deserve special mention. We’ve tried Orange Cream and Watermelon Mint, and my daughter absolutely loves both. There’s no struggle at brushing time anymore, no complaints, no resistance. She actually looks forward to brushing her teeth, which as any parent knows, is a huge win. The flavors are fun but not overpowering, and they don’t have that harsh or medicinal taste found in many toothpastes, especially “kid-friendly” ones. From a parent’s perspective, what really sold us is the fact that Boka is fluoride‑free and made with clean ingredients. We love knowing that we’re not exposing her to unnecessary chemicals while still supporting good oral hygiene. The inclusion of nano‑hydroxyapatite gives us peace of mind as well, it feels like a modern, thoughtful alternative that aligns with what we want for our family. The toothpaste feels gentle, non‑gritty, and leaves mouths feeling smooth and clean without dryness or irritation. The texture is another pleasant surprise. It’s creamy and smooth, easy to spread on the toothbrush, and doesn’t foam excessively. Both flavors leave a fresh, clean feeling afterward without any lingering bitterness. Even as adults, we genuinely enjoy using it, which says a lot, we often find ourselves reaching for it instead of our usual toothpaste. Overall, Boka Toothpaste has made brushing easier, more enjoyable, and more reassuring for our family. My daughter loves every flavor we’ve tried, and we love knowing we’re using a product that’s clean and fluoride‑free without compromising quality. If you’re looking for a toothpaste that works for both kids and adults and one that finally ends brushing battles,, I can’t recommend this one enough.
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Megan
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Size: 4 Ounce (Pack of 1), Set name: A. Strawberry Mango
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