Sunday, July 14, 2024
e38 Mark II
exaSound presents Mark II upgrade of the 8-channel e38 DAC

What's New:

  • World's highest performance Sabre ES9038PRO DAC chip increases 4 times the internal paralleled DAC channels compared to the ES9028PRO to bring more presence in the midrange
  • Redesigned reference voltage sources and master clock power circuits deliver more precise 3D imaging and more natural portrayal of transients
  • Refined analogue output stages built with components with superb linearity and enhanced power lines offer lower noise and distortion levels, improves micro dynamics and base reproduction
  • Redesigned main board topology offers reduced EM interference and reduced channel crosstalk resulting in better detail and resolution
e38 DAC Overview

The e38 Mark II 8-channel DAC is a fifth generation DSD256 DAC. Built around the ES9038PRO monolithic DAC chip from ESS Technologies, the e38 has vanishingly low distortion and noise levels, and astonishingly clean analog-like sound. The e38 Mark II offers a high power, high performance headphone amplifier and ultimate resolution volume control.

The e38 DAC is an A+ Stereophile 2019 Recommended Component in the Digital Processor category. This recognition comes after its predecessor e28 – the world’s first multichannel DSD256 DAC was included in the Stereophile Recommended A+ list for three years in a row.

exaSound’s in–house design delivers world recognized, award winning sonic purity

  • ZeroJitter™ — a unique true asynchronous USB interface with error correction assures accurate data reception
  • ZeroResolutionLoss™ — an exclusive volume control with three–way volume synchronization• GalvanicInfinity™ — affords complete galvanic isolation for ultimate external noise reduction
  • FemtoMaster™ — our quad-clock architecture, with 82 femtosecond master clock and 3 auxiliary stream-control clocks, minimizes jitter for maximum timing accuracy, image development and bass extension
  • Balanced internal design - yields the lowest analog noise and lowest distortion

Roon offers engaging, enjoyable way to browse your music. Via intelligent automatic cloud service library management, Roon delivers metadata for the user’s library and frees the user from the complexities of music library management.

e38 Mark II is a Roon Tested DAC. It has been profiled and tested by both Roon Labs and exaSound for maximum compatibility with the Roon software and service. Roon identifies exaSound devices and sends them audio optimized for their capabilities. Together, Roon and exaSound deliver the power, flexibility, and performance benefits of digital audio, with the easiest setup and highest reliability available.

    • Uncompromised fidelity — ENclusiv™ zero-configuration comprehensive sampling rate support, all the way up to native DSD 256 (Quad DSD) and 32 bit PCM at 384 kHz/DXD
    • Simplicity — Play multichannel or stereo in one playlist without changing settings  
    • Forget guesswork — Zero-configuration automatic filter selection for every format and sampling rate
    • Love the convenience — Synchronized simultaneous operation from IR Remote, device controls and software dashboard
    • Blackest blacks — Ultimate clean power, with 15 linear power conditioning stages, and an upgradable external power supply
    • Get lost in your music — Roon: the most engaging, enjoyable way to browse your music. RoonReady enables fast and highly reliable auto–discovery for instant setup

            e38 Mark II DAC Standard Edition with Single-Ended RCA Line Outputs

           Limited Edition Balanced e38 Mark II DAC with Mini-XLR Line Outputs
           Custom-build, contact us to order

Power Supply Options

exaSound DACs are powered by external 12V power supply. The e38 Mark II uses 11 internal linear power conditioning stages in cascaded configuration. Every subsystem is powered by dedicated power source. This sophisticated power conditioning makes the e38 very insensitive to the quality of the external power supply.

The e38 Mark II DAC is sold with a desktop style switching power supply included. Customers interested in using a premium quality linear power source have the option to order the e38 Mark II DAC bundled with a Teddy Pardo power supply.

TEDDY12/2 - 12V 2A Power Supply

The Teddy 12/2 power supply is based on a superior regulator called SuperTeddyReg.
Click here to read more about Teddy Prado’s power supply technology.

  • Power output: 12V, up to 2A
  • Mains Supply: 110-120V or 220-240V
  • Dimensions: 24x16x6 cm

Streaming Options

The exaSound Sigma Streamer turns any exaSound DAC to a network-connected device. It offers top-quality streaming with Roon Ready, HQPlayer, UPnP and Airplay. It delivers seamless, top-quality sound over wired or wireless connection, accessing high-resolution streaming services and local files. Sigma Streamer can be used with computer or with streaming server like exaSouns’s Gamma Server.
e38 Mark II DAC Specifications
D/A Converter IC
 ESS Technology ES9038PRO
PCM Sampling Rates - Asynchronous USB
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz

DSD Sampling Rates - Asynchronous USB
(Windows ASIO;
Mac Core Audio DoP256;
Mac ASIO) 

2.8224MHz (64Fs) 3.072MHz (64Fs)
5.6448MHz (128 Fs) 6.144MHz (128 Fs)
11.2896MHz (256Fs) 12.288MHz (256Fs)
PCM Sampling Rates - Coaxial SP/DIF
44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz  
PCM Sampling Rates - Optical (TOSLINK)
44.1kHz, 48kHz, 88.2kHz, 96kHz 
Total Harmonic Distortion + Noise,1kHz, 0dBFS
Total Harmonic Distortion1kHz, 0dBFS, typical
Intermodulation Distortion
19kHz + 20kHz
0 dBFS 2nd order IMD, typical
-122db  0.00008%
Signal-to-Noise Ratio
A-weighted, 2.1 Vrms, typical
DAC Master Clock Jitter
0,082ps (82fs) rms
Frequency Response
0Hz - 20kHz (-0.15dB) @ 44.1kHz / 48kHz sampling rates;
0Hz - 30kHz (-0.15dB) @ sampling rates >= 88.2kHz;
Channel Separation, typical
133dB @ 1kHz for adjacent channels
123dB @ 1kHz between channel groups
Digital Inputs
USB 2.0, SP/DIF Coaxial, SP/DIF TOSLINK (optical) 
Number of channels USB
  2 to 8 channels PCM, DSD 
 Number of channels SP/DIF 2 channels PCM 
Operating System Requirements: Windows
Windows 10 x64, Windows 8 x86, Windows 8 x64, Windows 7, Windows XP
ASIO compatible player required for all Windows platforms
Operating System Requirements: Mac
Mac OS Mavericks, Yosemite, El Captain, Sierra High Sierra, Mojave
 Operating System Requirements: Linux Not supported. Streaming is available via the exaSound streamers and servers.
Digital Volume Control Steps
Volume Matching between Channels
Better than 0.1dB
Line Output Unbalanced
(gold-plated contacts)
Line Output Balanced
(gold-plated contacts)
Line Output Level Unbalanced
Line Output Level Balanced
Line Output Impedance
Line Output Offset
< 5mV
Headphone Amp Current Output
250mA peak
Headphone Amp Output Impedance
1 Ohm, 20Hz-20kHz  
Headphone Amp Output Voltage 0-6V
Headphone Amp THD+N, typical
0.00052% , 1Vrms into 60ohms
Headphone Amp Intermodulation Distortion
1Vrms into 60ohms
19kHz + 20kHz 2nd order IMD, typical
-117dB  0.00014%
Headphone Jack
1/4" TRS, SE 
USB Connector
 Classic USB B
Power Jack Diameter
Int. 2.5mm / Ext. 5.5mm
Power Consumption
< 20W
(W x H x D)
 6.5 x 2.2 x 9.25 inches (165 x 55 x 235mm) 
2.4lbs (1.1Kg)  
 Price e38 Mark II: US $3,999

 ASIO is a registered trademark of Steinberg Media Technologies GmbH