DPPU(Desktop Plus Power Unit)：
DPPU adapts dual high-density battery customized power system, designed for High-Fidelity while ensuring separation of digital and analog power to eliminate digital circuit noise from the source, alike an enhanced DAP + Amplifier system but with a minimal path and hard soldered joints with no compromises.
Redesigned the charging circuit to reduce the switch circuit noise,ensure charging and playing at the same time, sound quality is not affected.
SG1 Power Design：
Normal Design:
The continuous evolution of Bluetooth technology, the development of aptx HD and LDAC protocols have made the wireless audio quality better and better.
According to the characteristics of Bluetooth digital signal output,SG1 selects appropriate DAC, well-designed LPF and headphone amplification circuit to make wireless sound tend to wired sound performance.
Software Design
Customize different firmware according to DAC and LPF circuits.
Different timbres through firmware instead of different accessories.
Inerface Design & CMF
Excellent control experience comes from the unique volume knob design.
The optimization of Touch &Feel algorithm makes the volume adjustment smooth and accurate.
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Specifications：
| Port： | |
| Input | Bluetooth |
| Output | 3.5 Single End/4.4 Balance |
| Specification： | |
| Bluetooth audio transmission format support: SBC，MP3，AAC，APT-X , APTX-L，APTX-LL，APTX-HD，LDAC等 |
|
| Performance： | |
| Frequency Response | 20Hz-20kHz |
| THD | 0.06% |
| SNR | 104db |
| MAX. POWER OUTPUT： | |
| Single End | 2.9V（32Ω） |
| Balanced | 2.8V（32Ω） |
| Others | |
| DAC Chip | ES9038Q2M |
| Chassis | CNC aluminum alloy |
| Dimensions | 117.5 x 59.2 x 16（mm） |
| Weight | 186g |
| Battery Life | 3.5 ：8 hours 4.4 ：6 hours |
| Charging | 5V 2A/3.5 Hours |
| Battery | 2000 mAH |
Review
https://www.headfonia.com/dethonray-pegasus-sg1-special-edition-review
Conclusion
The Special Edition SG1 is something serious about wireless music, and Anson continues to keep its unique position in the audiophile world. He’s always up to something and I think he’s going to release a desktop DAC/Amp soon.
Nevertheless, I’ve never been a fan of wireless ”audiophile” products. I always think that there should be some kind of a drawback with the sound quality. This is the first time that I think about actually using a wireless DAC at work or when commuting. The ease of use is hard to overlook, and you actually get a killer sound quality from a BT device.
The gold version, with its improved sound and power output, is a very special unit. Yet, if you already have the standard variant and you use IEMs most of the time, I don’t think it’s necessary to get it. But if you look for a premium wireless DAC, the SG1 SE is hard to beat.
I still think that Anson can come up with a new higher-end USB DAC/Amp with this more mature design and volume knob. Maybe a Mojo2 rival? Who knows. This guy is capable of making great-sounding units, so why not?
–Berkhan
Review
https://www.headfonia.com/dethonray-pegasus-sg1-review
Conclusion
I’ve never been a fan of wireless “audiophile” products. I always think that there should be some kind of a drawback with the sound quality. This is the first time that I think about actually using a wireless DAC at work or when commuting. The ease of use is hard to overlook, and you actually get a killer sound quality from a BT device.
However, I still think that Anson can come up with a new higher-end USB DAC/Amp with this more mature design and volume knob. Maybe a Mojo2 rival? Who knows. This guy is capable of making great-sounding units, so why not?
Pegasus SG1 enters into our Best DAC/Amp Combo Recommendations and Wireless Recommendations with its design and sound quality.
-Berkhan
Review
Value and Conclusion
With a price tag of 400 USD, the price / performance ratio of SG1 is super high, and even boutique companies like Dethonray are slowly getting updated, and now they have modern USB Type-C inputs, LDAC Bluetooth, and the same superb sonic performance we’re used to getting from the company. Basically, you’re quite unlikely to have anything that comes even close to the performance of SG1 Pegasus, but it comes with the drawback of being such a specialized device that if you don’t need a Bluetooth DAC/AMP, it won’t satisfy you too well.
At the end of the day, the performance of SG1 Pegasus has been so outstanding that I’m going to add it to Audiophile-Heaven’s Hall Of Fame as one of the best Bluetooth DAC/AMPs ever to have grazed the air of our planet and give us a music source, and for a super friendly price.
–Audiophile Heave
Review
https://www.audiophile-heaven.com/2022/12/best-products-of-2022-audiophile-heaven-awards.html
Best Bluetooth Receiver & Amplifier – Dethonray SG1 Pegasus
Best things in life are free, that’s a rule I believe life always follows, and an unknown company surprising me with a product I wasn’t ready for surely was a huge surprise. I liked the DTR1+ Prelude from Dethonray, but SG1 Pegasus is exactly what I’d consider if I really wanted to get serious about bluetooth products. This is not just a DAC / AMP, and in fact it cannot even work as a DAC/AMP, being a bluetooth receiver only. But the sound is so lush, thick and smooth that it wins hands-down the title of the best bluetooth receiver of 2022. You can grab it from here – https://amzn.to/3hHW6Ol
From my original Review – “I cannot begin to tell you how enjoyable using SG1 is, you have quite literally a high-end flagship audiophile source in quality and presentation, but it is Bluetooth with LDAC, and sounds just as good as most wired sources, without you having to clump yourself with those. I see such high potential for SG1, especially for those watching stuff on smartphones or tablets (I got a Huawei tablet and I love watching concerts while laying down and relaxing), also SG1 has a fairly low background noise so it should be ok for most IEMs. You can hear a faint hissing if no music is playing and your IEMs are sensitive, for example I hear something with Fir Audio Ne4 and Campfire Atlas, but I don’t hear much background noise with Final Audio A8000, and less sensitive IEMs. I suggest always keeping your smartphone / source at maximum digital volume and using the potentiometer on SG1 to set the volume for the song you’re enjoying.”
–Audiophile Heave