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Special Edition Upgrades
The SG1 Special Edition is a limited version where the 3.5mm interfaces have been removed from the design and only 4.4mm interfaces have been retained.
Compared to the standard version, resetting the LPF circuit greatly improves the sound quality.
Driver power reaches 4Vrms.The output of the normal version is 1.1Vrms.It can easily drive popular IEMs at low gain and headphones at high gain.
The SG1 SE is only available in Gold.
Mobile DAC/Amp with Bluetooth
"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."
Dethonray Pegasus SG1 Review - Headfonia Reviews
Audio Circuit Design
DPPU (Desktop Plus Power Unit
DPPU adopts a dual power supply system tailored for high-density batteries, designed for high-fidelity while maintaining the separation of digital and analog power supplies to eliminate digital circuit noise from the source, similar to an upgraded DAP+ amplifier system , but with a minimal path and brazed connections without compromise.
The charging circuit has been redesigned to reduce circuit noise and ensure that charging and playing at the same time does not affect the sound quality.
SG1 Power Design：
Continuous advances in Bluetooth technology, development of aptx HD and LDAC protocols have made wireless audio quality better and better.
According to the characteristics of the Bluetooth digital signal output, the SG1 selects an appropriate DAC, a well-designed LPF and a headphone amplification circuit to match the wireless sound with the wired sound performance.