AKM AK4493SEQ
The AKM AK4493SEQ is a premium 32-bit Delta-Sigma DAC chip from Asahi Kasei Microdevices. Audiophiles often describe AKM chips as sonically warmer and more musical than ESS Sabre chips. Notably used in the Fosi Audio S3 HiFi Streamer.
The AK4493SEQ is a premium 32-bit / 768 kHz Delta-Sigma DAC chip from Asahi Kasei Microdevices (AKM), Japan. It features AKM’s VELVET SOUND processing which aims for a smooth, natural tonal balance.
Key specs
- Up to 32-bit / 768 kHz PCM and DSD512
- THD+N below -113 dB
- Dynamic range ~123 dB
Sound signature (per audiophile consensus)
Owners consistently describe AKM DACs as warmer, smoother, more analog-sounding, and less fatiguing over long listening sessions compared to ES9038Q2M-based designs. Whether this is due to the chip itself or the surrounding circuitry designers typically pair with AKM chips is debated.
Where you’ll find it
The AK4493SEQ is the DAC inside the Fosi Audio S3 HiFi Streamer, one of our top-picked all-in-one streamer/DAC/preamp options under $300.
Common myths & realities
AKM DACs always sound warmer than ESS
A very common claim, but sonic differences depend on implementation and are subtle. Trust your ears at your listening levels.
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