dac8 Stereo

Highest performance, streaming-enabled stereo D/A converter

"dac8 Stereo is a result of many years of our pursuit to get the most from the flagship Sabre D/A chips. While it shares the analog architecture with the dac8 PRO, the dac8 Stereo combines 4+4 channels to double the dynamic range and push the measured performance to the levels thought to be unattainable. It also adds Raspberry Pi 4 on top, a widely accepted, community-supported single board computer that enables it to play audio from network storage or streaming services.

In our design process, we ended up diverging completely from the D/A chip manufacturer guidelines. The main idea behind the products is that, ultimately, it is the implementation that creates the performance and character."

Pavel Krasensky,  dac8 Stereo designer



USB (asynchronous, UAC2.0 compliant), up to 384 kHz / 32 bit PCM, DSD256 or DoP128
2x Optical (Toslink)
2x Coaxial (SPDIF)
AES/EBU (SPDIF voltage level compatible)
Ethernet (through Raspberry Pi)
Wi-Fi (through Raspberry Pi)


2x XLR balanced, 2 connectors per channel
4.1V RMS full-scale
6.3 mm (1/4") headphone output

Analog performance

0.00003% / -130dB full-scale THD (Total Harmonic Distortion) or better
0.0001% / 120dB full-scale SINAD or better
131dB dynamic range
0.00022% / -113dB THD+N @ 100mW into 32 Ohms headphone output

Additional features

Designed to directly interface to amplifiers
Per-channel volume
Choice between 7 PCM reconstruction FIR filters
Configurable auto on / auto off
Configurable display timer for auto dim/off
Remote control learning 
Trigger output (pulse / continuous)
2x 2.42" OLED displays


446 mm x 183 mm x 50 mm
Weight: 4.5kg (10 lbs)


120 V AC or 230 V AC
Power rating: 15 W


2 years


Owner's Manual  |  Windows driver

With passion for music designed and made in Prague

From CNC machining to PCB assembly, Okto Research products are built for you in central Europe. We keep most of the production in-house and for the rest, we work with local suppliers and manufacturers to ensure the highest quality, because only that will make us proud to deliver our products.


dac8 Stereo

Due to supply chain issues, a limited amount of units is being released for sale at a time. Please contact us if you have an EU VAT number and want to make a purchase with VAT excluded.

Accessories and extras

Apple Remote

Practical, reliable, beautiful. While the dac8 Stereo can learn commands from any remote, we recommend the original Apple Remote

Custom output voltage

Choose a custom output voltage that matches your amplifier. Available in range from 1 to 12V RMS. Please specify the requested value in your order note.