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
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  • 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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4.9 ★★★★★
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UMmba
Omaha, US
★★★★★ 3
Nylabone Puppy Treat Starter Pack - A Mixed Bag of Delight and Disappointment
Size: Small, Color: Blue
I recently purchased the Nylabone Puppy Treat Starter Pack for my adorable 5lb puppy, and overall, I have mixed feelings about this product. While I was initially satisfied with the variety pack, one of the bones in particular left me disappointed due to its lack of durability. Let's start with the positives. The Nylabone Puppy Treat Starter Pack comes with three different toys: a blue puppy teething toy, a nylon dog toy, and a chew treat. This variety is great for keeping my puppy engaged and entertained, especially during the teething phase. The blue puppy teething toy is specifically designed for soothing sore gums, and my puppy seemed to find great relief when chewing on it. It has a pleasant texture that is gentle on the teeth and gums, making it an ideal choice for teething puppies. The nylon dog toy included in the pack is durable and sturdy. It has a satisfyingly textured surface that provides an excellent chewing experience for my little furry friend. The toy is designed to withstand the strong chewing habits of puppies, and it has certainly proven to be long-lasting compared to other toys I've tried in the past. My puppy enjoys gnawing on it for extended periods without any signs of damage. Now, let's address the bone that failed to meet expectations. One of the bones included in the pack was devoured by my puppy within a single evening. I was taken aback by how quickly it was consumed, especially considering my puppy's small size. While the other bones in the pack held up well, this particular one lacked the durability I had hoped for. I understand that puppies have strong jaws, but I expected the bone to withstand more than a few hours of chewing. Despite this disappointment, I must mention that the bone did not cause any harm to my puppy. It is important to supervise your puppy while they chew on any toys, especially if they have a tendency to swallow large chunks. In this case, I was fortunate that my puppy did not experience any adverse effects after consuming the bone. However, it's crucial to exercise caution and ensure that your puppy doesn't ingest anything that could potentially be harmful. Overall, while the Nylabone Puppy Treat Starter Pack has its upsides, I cannot ignore the fact that one of the bones failed to meet expectations in terms of durability. However, the other toys included in the pack provided a satisfactory experience for my puppy, and they have proven to be long-lasting. I would recommend this product with the caveat that you closely monitor your puppy's chewing habits and potentially avoid the bone that didn't hold up well in my particular case.
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Reviewed in the United States on May 31, 2023
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Rafael A
New York, US
★★★★★ 5
⭐⭐⭐⭐⭐ Great for teething puppies
Size: Small, Color: Pink
I purchased the Nylabone puppy chew toys for my teething puppy, and they’ve been a big help. The toys are the perfect size for a young puppy and feel durable without being too hard. My puppy enjoys chewing on them, and they’ve helped redirect chewing away from furniture and shoes. I also like that they’re designed specifically for puppies, so they’re gentle enough for growing teeth and gums. The variety in the set keeps my puppy interested, and the toys have held up well with daily use. They’re easy to clean and feel safe to give to a puppy. Overall, these are great chew toys for puppies. They’re effective, well made, and helpful during the teething stage. I would definitely recommend them to new puppy owners.
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Reviewed in the United States on December 15, 2025
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Verified Purchase
Debbie Hanchett
Lake Worth, US
★★★★★ 5
Happy puppy with this durable bone
Size: X-Small, Color: Pink
Our new puppy loves the texture and thickness of this bone. She is an aggressive chewed and has not yet destroyed this bone. We have purchased Nylabones for our dogs year after year and have had several happy puppies over the years.
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Reviewed in the United States on June 4, 2026
A
Verified Purchase
Allie T
New York, US
★★★★★ 5
Amazing for Heavy Chewers!
Flavor Name: REAL Jack Salmon, Size: Puppy (2-Pack)
If you have a dog that destroys every toy in minutes, Benebone is a total game changer. These chews are incredibly durable and actually last—especially for strong or aggressive chewers. They’re made with real flavors like bacon, chicken, and peanut butter, which dogs absolutely love, and you can tell because they keep coming back to it again and again. What I love most is that they keep my dog busy and satisfied without the mess or smell of traditional bones. They’re also thoughtfully designed with shapes that are easy for dogs to grip and chew comfortably. That said, like any hard chew, it’s important to supervise and replace it if it gets worn down—but overall, this is one of the best long-lasting chew toys out there. Highly recommend for anyone with a serious chewer—worth every penny! 💛🐶💛
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Reviewed in the United States on March 20, 2026
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Verified Purchase
LJ
Waukegan, US
★★★★★ 5
Excellent quality chews. Tiny Puppy size is perfect for adult toy breed dogs.
Flavor Name: REAL Bacon, Size: Puppy (2-Pack)
I bought the Tiny Puppy Bacon flavor 2-pack package of these, and my dog and his sister are obsessed with them. They chew on them multiple times every day. They seem to be fairly durable, although I expect they will break down over time, which is okay as it’s a chew. I like that they stay intact, with no chunks breaking off for the dogs to swallow. The dogs do ingest a small amount as the material breaks down, but I always supervise them when they have these, and there haven’t been any problems. It’s difficult to find good chews for toy breed dogs like our 12-pound Shih Tzus, so I was happy to find these. They are pricey, but I believe they are worth it. The dogs love to carry them around, and my little guy even plays with his chew sometimes like it’s a toy.
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Reviewed in the United States on February 20, 2026

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