Okto dac8 Stereo D/A processor Specifications

Sidebar 1: Specifications

Description: Two-channel, digital-to-analog converter with volume control, headphone output, 2" × 2.42" OLED display, 7 PCM reconstruction filters, optional Raspberry Pi module, and Apple remote control. Digital inputs: AES/EBU (S/PDIF voltage compatible) on XLR, S/PDIF on 2 RCA jacks and 2 TosLink optical connectors, asynchronous USB Type B, 2 USB Type A host, Ethernet on RJ45 jack and Raspberry Pi module, Wi-Fi via Raspberry Pi module. PCM sample rates supported: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, and 192kHz via AES/EBU and S/PDIF, plus 352.8kHz, 384kHz, DSD64, and DSD128 via USB and Ethernet. Maximum input word-length: up to 32 bits depending on input. Analog outputs: 2 pairs balanced XLR, ¼" stereo headphone jack. Maximum output voltage at 0dBFS: 4.1V RMS at main and headphone outputs. Frequency response: not specified. Dynamic range: 131dB. THD+N: –130dB (0.00003%) ref. 0dBFS; SINAD, –120dB (0.0001%) ref. 0dBFS, main output; –113dB (0.00022%) at 100mW into 32 ohms, headphone output. Channel separation: not specified. Output impedance: 50 ohms (main), <0.1 ohm (headphone). Power consumption: 15W.
Dimensions: 17.55" (446mm) W × 7.2" (183mm) D × 2" (50mm) H (including feet). Weight: 10lb (4.5kg).
Finishes: Black, silver.
Serial number of unit reviewed: 0, Firmware v1.00.
Price: €1089, equivalent to $1285 at the time of writing, plus €89 for the streaming module and €25 for the Apple remote, to give a total of €1203 ($1423). Sold direct, with 30-day return policy. Warranty: 2 years.
Manufacturer: Okto Research s.r.o., Jana Masaryka 257/26, 12000 Prague, Czech Republic. Web: oktoresearch.com.

Okto Research s.r.o.
Jana Masaryka 257/26
12000 Prague
Czech Republic

rt66indierock's picture

John you got the same measurements I did when I measured it last year which is good.

I have said this is the best DAC I have heard.

Olle Linder's picture

How does Chord Qutest sound compared to Oktos dac?

kirk's picture

Hello John

Thank you for the review. What I glean from it is that the unit majors on detail retrieval, leading edge definition and resolution. You also mention that another more expensive DAC gets out of the way of the music more effectively - what does that mean exactly?

Also, any dac8 owners reading this: how would you describe the sound? Anything to add?

MhtLion's picture

I haven't heard Okto dac8. But, as far as the measurements published in Stereophile are concerned - I think it's in the top 10, even the top 5 possibly. Rest assured, I'm ordering this.