In Barn for Review: Ideon Audio EOS DAC

I reviewed the Ideon Audio Ayazi mk2 DAC along with their 3R Master Time Black Star external clock last year and concluded, in part, “There’s no better surprise in hifi than being startled by an unexpected level of musical engagement.”

The new EOS DAC sits above the Ayazi mk2 and below the ION and flagship Absolute Epsilon DACs in the Ideon lineup and it borrows proprietary tech from the ION and Epsilon.

The EOS’ back panel tells the simple story—USB and S/PDIF in, RCA and XLR out.

The front panel is equally simple with its power button, custom matrix LCD display, and input selector knob.

Of course the real story happens on the inside. I’ll let Ideon hit the highlights:

  • Cutting edge analog stage, with symmetrical ultra-low noise power supply.
  • -120 dB SNR, quad current output from DAC.
  • Silicon carbide diodes deployed to minimize diode-rectification noise
  • Upgradable DAC and USB input engine.
  • New in-house developed dedicated software for the DAC chip (same as the Absolute E DAC). The upgradable chip firmware is developed by Ideon Audio in close cooperation with ESS.
  • Native support and playback for all DSD and PCM formats/frequency rates
  • Proprietary Triple Distillation USB input: Noise Elimination.
  • New audio USB codec used in our USB input module. A proprietary design, being the most current, state-of-the-art technology. The result; amazing, practically zero jitter, extremely low noise, super-fast processing, and extraordinary, natural sound quality.
  • A customized USB Audio 2.0 audio class driver developed for Windows. It’s optimized for low latency and low CPU load. Buffer depths can be adjusted to optimize settings for any given computer. The driver implements a transparent (bit-perfect) playback.

I look forward to taking the EOS for a spin and perhaps another surprise. Stay tuned!

Ideon Audio EOS DAC
Price: $9500
Company Website: Ideon Audio
North American Importer/Distributor: Audio Skies


SUPPORTED FORMATS (INPUT DEPENDENT) 44.1kHz to 384kHz PCM up to 32 bits , Native DSD (up to 8X DSD)
DIGITAL INPUTS 3x Advanced isolated input module slots (USB, BNC, RCA)
THD (A WEIGHTED 20HZ-20KHZ) < – 110dB on all outputs
CHANNEL SEPARATION >124dB on all outputs
SNR (A WEIGHTED 20HZ-20KHZ) >120dB on all outputs
DYNAMIC RANGE 20HZ TO 20KHZ 132 dB (FS) . 130 dB (AFS)
DISPLAY Custom matrix LED display
DIMENSIONS (W X H X D) 460 x 295 x 110 mm ( (18.1 x 11.5 x 2.9 in)
WEIGHT 10kg (~22 lbs)