About the SIMGOT DEW4 Ultra
From the product page on linsoul.com.
Dual CS43198 DAC & Dual SGM8262 Amplifier Architecture
The DEW4 Ultra features dual CS43198 DAC chips, delivering powerful performance and excellent musicality. With a 131dB wide dynamic range, it restores detail and dynamics for a more realistic and expressive sound. It supports 768kHz/32bit PCM and DSD256 high-resolution audio, easily decoding various sources. The carefully designed peripheral filter circuit suppresses power noise and interference, ensuring a pure and stable audio signal. Two independent SGM8262 amplifier chips handle left and right channel signal amplification separately, greatly reducing crosstalk and ensuring cleaner output.
Through meticulous circuit design, the DEW4 Ultra achieves an astonishingly low noise floor. It delivers a 131dB signal-to-noise ratio and ultra-low distortion of <0.00018% (@4.4mm BAL). This allows sound to emerge from a pitch-black background with an almost "0" noise floor (1μVrms). The pure sonic background fully presents instrumental overtones, spatial reverberation, and sound layers. In gaming scenarios, it helps reveal subtle audio details such as footsteps, weapon switching, and environmental interactions, giving you a competitive edge.