Sparkler Audio model S504 "unison" 16 bit Non-Oversampling DAC

Regular price €888,00

Tax included.

model S504 "unison"
16 bit Non-Oversampling DAC

Non-oversampling D/A converter and the power supply unit is built in a compact size. It is characterized by sound quality with highly pure musical power. There are 4 variations for each interface, COAXIAL (S/PDIF), USB (PC), OPTICAL (TOSLINK) and I2S. In addition to the current-mode output, you can connect directly with the conventional voltage-mode amplifier with this single model.


Smart Size ― Easy to wiring from rear panel.

In size-held (100×200mm) in one hand, you do not choose a place to put it. Since the depth is narrow, it does not get in the way routing of the wiring from the rear panel.

Japanese Taste ― The texture of Japan.

Elegant and cool, finished with a timeless design. The color of the handmade Japanese paper is by hope, you can choose from below color variations. You can also choose gray-smoke monotone or clear-transparent panel without Japanese paper.


Simple Front Panel ― Easy to operate.

We designed as soon as possible to immerse into the music by losing cumbersome switches as much as possible, just plugging in the cable and turning on the power.



  • D/A converter: Philips 16 bit non-oversampling DAC TDA1543
  • Rate: 32kHz, 44.1kHz, 48kHz
  • Reclock: Fully discrete analog oscillator (ultra-low jitter, ultra-low 1/f phase noise)
  • Crystal: high grade (for professional wireless devices), low drift (within 5..7ppm) crystal
  • Output Stage: Fully discrete JFET/BJT current mirror amplifier
  • S/N ratio: 96dB (typ)
  • Line Output (voltage-mode): Analog RCA pin jack (unbalanced) max 2.0Vrms (0dB, 10kΩ load), L/R stereo x1
  • Line output (current-mode): unbalanced RCA pin jack 5.5mAp-p, able to connect to 0Ω devices
  • Chassis: Stainless steel (hairline finish), Acrylic top panel
  • Size: W200×H46×D100mm
  • Weight: 700g (without power cable)
  • Accessories: Power cable, manual

model S504u for COAXIAL ― S/PDIF (coaxial 75Ω)
〜Non-oversampling is still a best choice for the CD-DA format.

  • Interface: RCA pin jack, S/PDIF (coaxial 75Ω)
  • DAI: Wolfson WM8805 receiver

model S504u for USB
〜Listening to the sound soures on your PC/iPad and on the internet.

  • Interface: USB 'B' type receptacle, self-powered, available PC, tablet & smart phone
  • DAI: Burr Brown PCM2706C USB-I2S mode

model S504u for OPTICAL ― TOSLINK optical fiber cable
〜Enjoy home theater with this high quality sound!

  • Interface: square type, TOSLINK (optical fiber)
  • DAI: Wolfson WM8805 receiver

model S504u for I2S ― Connect to any I2S devices
〜Pure and high quality sound with low jitter connection.

  • Interface: 4 pin connector, I2S
  • DAI: DAI signal BLK / WS (LRCK) / DATA / GND

Top Panel

Color variations of handmade Japanese paper

From left to right: 1.violet, 2.cobalt-blue, 3.olive, 4.plum,, 6.lavender, 7.cream, Please choose your favorite color for top panel when you purchase order of this product.

Monotone Panel

You can also choose gray-smoke monotone or clear-transparent panel without Japanese paper.