80W Toroidal Transformer

Custom pure copper toroidal transformer with up to 100W peak output ensures stable power delivery, even with three devices connected.

Nippon Chemi-Con Capacitors

Premium capacitors help minimize ripple and noise, with ripple as low as 0.1mV.

High-Reliability Rectifier

A GBU806 rectifier bridge rated at 600V/8A ensures fast, stable AC-to-DC power conversion.

4-Core Regulation

Powered by three LM1085IT and one ST78M05 linear regulators from Texas Instruments.

Product details

Description
  • Small USB DAC headphone amplifier with optimized HiFi audio architecture ensures High-Resolution sound quality. The portable USB DAC DS1 is compatible with various systems like Android/iOS/Windows/Mac, compatible with the latest devices: phones/computers/tablets/laptops/audio players, etc. Wonderfully versatile when commuting in the home, office, or gaming.

  • DS1 adopts ESS Technology ES9038Q2M DAC Chips supporting DSD 512 and 32Bit/768kHz PCM, features best-in-class specifications, and high-power outputs capable of supporting the most demanding of headphones with impedance above 200Ω.

  • Low Noise Floor Clean Sound for True High-Fidelity. DS1 features abundant power with a high signal-to-noise ratio, low distortion, and almost 0 noise.

  • 3.5MM+4.4MM Dual Headphone Outputs are both Powerful enough to easily drive most headphones. The traditional 3.5mm single-ended headphone output is widely compatible with most headphones, and a 4.4mm balanced headphone output for a more detailed audio experience. Specifications: THD+N<0.0006%, output power up to 220mw, SNR>120dB, Noise<1.6UV.

  • What You Get: DS1 USB DAC Headphone Amp x1, Type-C to Type-C cable x1, USB-A to USB-C Converter x1, user manual x1, our worry-free 24-month warranty, and friendly customer service. NOTE: The new version of the DS1 headphone amp optimized the volume control which is independently controlled from the audio source device.
DS1


Specifications

Specifications Details
Model DS1
Output Power 120mW(SE); 220mW(BAL)
Terminating Impedance 16-300Ω
Input Mode USB Type C
Output Mode 3.5MM + 4.4MM Headphone
Frequency Range 20Hz-20kHz (±0.5dB)
THD 0.0006%(32Ω SE); 0.001%(32Ω BAL)
SNR ≥120 dB
Sampling Rate 32bit/768kHz
DSD DSD64/128/256/512
DAC Chipset ES9038Q2M
Material Tin Alloy
Device Weight 38g


What‘s in the box?

Item Quantity
Fosi Audio DS1 x 1
Type-C to Type-C cable x 1
USB-A to USB-C Converter x 1
User Manual x 1

Specifications

Power Input
AC: 115V / 230V
Note:
115V setting supports 100–120V input
230V setting supports 220–240V input
Power Output
DC 1: 12V / 15V (Rated Power: 20W)
DC 2: 12V / 5V (Rated Power: 15W)
USB: 5V / 1A (Rated Power: 5W)
Operating Temperature
-20 ~ 40°C (-4°F ~ 104°F)
Temperature Rise Test
Temperature rise of 25°C (77°F) at full load

What‘s in the box?
  • Fosi Audio PSU20*1
  • 1.2m (47.2 in) DC-DC Power Cable*1
  • 0.3m (11.8 in) DC-DC Power Cable*1
  • User Manual*1
  • AC Power Cord*1