exaSound s88 multichannel D/A processor Specifications

Sidebar 1: Specifications

Description: Network-connected 8-channel 32-bit DAC. Digital inputs: LAN (RJ-45 and Wi-Fi), USB 2.0 audio, S/PDIF coaxial, S/ PDIF TosLink, 2 × USB 2.0 (keyboard, mouse), 2 × USB 3.0 (external storage). Outputs: 8 channels unbalanced (RCA) and balanced (XLR), headphone (¼" TRS, SE), HDMI (video only). Supported services: UPnP, AirPlay, Roon RAAT, NAA (HQPlayer), OpenHome, Tidal, Qobuz. Supported formats: DSD, WAV, FLAC, AIFF. Supported sample rates: up to DSD256, up to 32/384 (8 channels), and up to DSD512 (stereo) via USB and LAN; up to 24/192 PCM via S/PDIF coax; up to 24/96 PCM via TosLink. Total Harmonic Distortion + Noise: 0.00021% @ 1kHz, 0dBFS. Total Harmonic Distortion 0.00014% @ 1kHz, 0dBFS. Intermodulation distortion (2nd order): –128dB 0.00004% @ 19kHz+20kHz, 0dBFS. Signal-to-noise ratio (A-weighted): 123.8dB @ 4.6V RMS (balanced), 123.5dB @ 2V RMS (unbalanced). DAC master clock jitter: 0.082ps (82fs) RMS. Frequency response: 0Hz–20kHz (–0.15dB) @ 44.1kHz/48kHz; 0Hz–30kHz (–0.15dB) @ 88.2kHz and higher. Channel separation: 133dB @ 1kHz. Line output level: 4.6V RMS (balanced), 2V RMS (unbalanced). Line output impedance: 400 ohms (balanced), 200 ohms (unbalanced). Headphone amp output: 250mA peak, 0–6V RMS. Headphone amp output impedance: 1 ohm, 20Hz– 20kHz. Headphone amp distortion (1V RMS into 60 ohms): THD+N, 0.0012%; 19kHz + 20kHz 2nd order IMD, –120dB (0.0001%). Power consumption: <64W. Supplied accessories: IR remote control, external universal power supply, USB cable, Ethernet cable, Wi-Fi antennas, Quick Start Guide, AC power cord.
Dimensions: 17.5" (445mm) W × 2.6" (70mm) H × 9.6" (245mm) D. Weight: 13.7lb (6.2kg).
Finish: Black or Silver.
Serial number of unit reviewed: 041336. Made in Canada.
Price: $6500. Sold direct. Warranty: Limited one year.
Manufacturer: exaSound Audio Design, 3219 Yonge St., Suite 354, Toronto, Ontario Canada M4N 3S1. Web: exasound.com.

exaSound Audio Design
3219 Yonge St., Suite 354
Toronto, Ontario
Canada M4N 3S1

JRT's picture

The article states, "...it was little more than a tick from the main speakers and a bip from the subs. I only heard it from the unbalanced inputs—it was absent when I hooked things up with RCA."

Kal, I suspect that you had intended the word "balanced" rather than "unbalanced" in this, if the problem went away on the RCA terminated interconnection.

Kal Rubinson's picture

Thanks. Actually, it really should say "I only heard it from the balanced outputs—it was absent when I hooked things up with RCA."

John Atkinson's picture
Kal Rubinson wrote:
Actually, it really should say "I only heard it from the balanced outputs . . .


John Atkinson
Technical Editor, Stereophile

JRT's picture

...keeping the audio interface separate from the separately replaceable and upgradable computer and software.

Kal Rubinson's picture

I prefer the idea of having the multiple input options on the s88 without additional boxes and cables.