Thursday, February 21, 2019
e38 DAC Specifications
D/A Converter IC
 ESS Technology ES9028PRO
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
Intermodulation Distortion
19kHz + 20kHz
0 dBFS 2nd order IMD
-124db  0.00006%
Signal-to-Noise Ratio
A-weighted, 2 Vrms
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
134dB @ 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
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
10hm, 20Hz-20kHz  
Headphone Amp Output Voltage 0-6V
Headphone Amp THD+N
0.00087% , 1Vrms into 60ohms
Headphone Amp Intermodulation Distortion
1Vrms into 60ohms
19kHz + 20kHz 2nd order IMD
-120dB  0.0001%
Headphone Jack
1/4" TRS, SE 
USB Connector
 Classic USB B
Power Jack Diameter
Int. 2.5mm / Ext. 5.5mm
Power Consumption
< 15W
(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: US $3,849

 ASIO is a registered trademark of Steinberg Media Technologies GmbH

e38 DAC