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Compact black box with optical coaxial USB inputs and RCA 3.5mm outputs volume knob on front

Vszerda

Vszerda 192KHz DAC Optical Coaxial USB to RCA 3.5mm Audio Converter

SKU CH-11R9-7ES0A

Converts optical, coaxial and USB digital audio to analogue RCA and 3.5 mm outputs with 192 kHz 24-bit sampling and a 125 mW headphone amplifier

  • Converts optical, coaxial and USB digital audio to analogue RCA or 3.5 mm outputs
  • Supports PCM and LPCM at sampling rates of 32, 44.1, 48, 96 and 192 kHz
  • Built-in headphone amplifier delivers 125 mW per channel into 32 Ω loads
  • Volume knob lets you adjust output level directly on the device
  • Drives headphones from 32 to 600 Ω for flexible listening options

What it does and who needs it

The Vszerda 192KHz DAC converts digital audio from optical Toslink, coaxial SPDIF or USB sources into analogue stereo signals on RCA and 3.5mm outputs. It is built for listeners who want to connect a TV, games console or PC to an older amplifier or active speakers that lack digital inputs. A front-panel volume knob drives headphones directly at 125mW per channel into 32ohm loads.

The format that decides compatibility

Optical and coaxial inputs accept only PCM or LPCM streams at 32, 44.1, 48, 96 or 192KHz sampling rates; bitstream formats such as Dolby Digital or DTS are not decoded. The USB input is intended for PC playback and does not read USB storage devices. Buyers whose source cannot be set to PCM/LPCM output will hear silence or noise.

Behaviour during extended use

The integrated headphone amplifier delivers 125mW x2 into 32ohm and supports a suggested impedance range of 32-600ohm, so output level remains stable during long listening sessions. RCA and 3.5mm line outputs feed external amplifiers without added gain staging. The metal enclosure aids heat dissipation, keeping performance consistent when the unit is left powered for hours.

Highlights

  • Converts optical, coaxial and USB digital audio to analogue RCA or 3.5 mm outputs
  • Supports PCM and LPCM at sampling rates of 32, 44.1, 48, 96 and 192 kHz
  • Built-in headphone amplifier delivers 125 mW per channel into 32 Ω loads
  • Volume knob lets you adjust output level directly on the device
  • Drives headphones from 32 to 600 Ω for flexible listening options

Specifications

No published specifications for this item yet.

Questions about this item

What does the 192KHz sampling rate mean for music playback on this converter?

It supports PCM and LPCM streams at up to 192KHz, so high-resolution files from a PC, console or streamer are converted to analog without downsampling, provided the source is set to PCM output.

Which digital input standards does the optical and coaxial interface accept, and what is the practical limit?

The optical and coaxial inputs accept PCM and LPCM at 32, 44.1, 48, 96 and 192KHz; any multi-channel or compressed format such as Dolby or DTS must be decoded to PCM by the source device first.

What headphone impedance range can I plug into the 3.5mm jack and still get usable volume?

The built-in amplifier delivers 125mW per channel into 32 ohms and is rated for headphones from 32 to 600 ohms, so most consumer and studio models will work directly.

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