E1DA Cosmos ADC DM Hi-Precision Analog To Digital Converter For Audio Testing

E1DA Cosmos ADC DM Hi-Precision Analog To Digital Converter For Audio Testing

$2,422.94

$2,422.94 $0.00

Description

SPECIFICATIONS

Bluetooth: No

Brand Name: E1DA

Certification: CE,RoHS

Choice: yes

DSD Sampling Frequencies: NONE

Dimensions (W x H x D): 104x61x39mm

E1DA Model: Cosmos ADC DM

Electrified: No

High-concerned chemical: none

Input Format: PCM

Inputs: AUX

Material: Metal

Model Number: Cosmos ADC DM

Origin: Mainland China

Outputs: XLR

PCM Sampling Frequencies: 44.1 kHz,48 kHz,88.2 kHz,96 kHz,176.4 kHz,192 kHz,352.8 kHz,384 kHz,768 kHz

PCM Word Length: 32-bit

Type: Portable

USB Compatibility: Windows 7,Windows 8,Windows 8.1,Windows 10,Windows XP,iOS,Android

WIFI: No

semi_Choice: yes

Cosmos ADC DM

Bundle 2 is Grade B

Bundle 3 is Grade A

Bundle 4 is Grade 0

SNR=DR@MONO:

Grade B 129~129.9db(A)

Grade A 130~131.9db(A)

Grade 0 ≥132db(A)

"thermostat" =Off (threshold = 255),=On may reduce harmonics but increase the noise

STEREO mode has 3db worse SNR/DR. Measured at 32/48 AP2700

For the MONO mode, please use REW feature Virtual_balanced_input/Sum

ADC DM starts slower than ADC/ADCiso, 3min needed at least, better 10min

THD+N@1kHz@-.5dbFS SR48kHz BW 20-20kHz

-125db typical for Grade-B
-126db typical for Grade-A
-127db typical for Grade-0

Specifications:

Device Purpose/Marketing Target:

ultra-low THD+N Analog to PCM Digital Converter for audio measurement, DIYers, audio tech bloggers-reviewers

Materials:

Sandblasted/black anodized aluminum/laser mark/2xES9822Pro/OPA1612/RT6863S, Susumu, Viking resistors, Murata, Samsung C0G caps, Taiwanese connectors/switches

Dimensions:

104x61x39mm Assembled
(PCBA 90x50x29mm)

Weight:

157g Assembled
(PCBA 34g)

Power:

USB-C +5V rail, the second USB connector, <500mA current - power it first.

Cosmos ADC DM has a built-in "thermostat" +TweakCosmosADC_DM.exe control

Input:

USB bridge Comtrue CT7601PR(768K) custom FW

XLR L/R (FDA) up to 10Vrms

AUX 2.5mm Jack up to 43Vrms

Max DC +/-1V allowed; DC-biased DUT is better to test with Cosmos Scaler

Output:

USB-C, PCM up to 32b/768kHz has that connector isolated with 8pF

Please do not use a screwdriver to fix the DATA USB-C cable, use your fingers instead to avoid overstrength and damage to the USB-C socket.

Latency:

5mS@192k ASIO4ALL REW

Measured as a physical delay/2 from ADC input to the 9038D output

Input Ranges/Impedance:

XLR 1.7Vrms/640Ω; AUX 20.5Vrms/7.8kΩ
XLR 2.7Vrms/1kΩ; AUX 21.5Vrms/8.1kΩ
XLR 3.5Vrms/1.3kΩ; AUX 23Vrms/8.8kΩ
XLR 4.4Vrms/1.66kΩ; AUX 23Vrms/8.8kΩ
XLR 5.3Vrms/2kΩ; AUX 24Vrms/9.1kΩ

The lowest noise sensitivity settings:

XLR 3Vrms/640Ω; AUX 36Vrms/7.8kΩ
XLR 4.7Vrms/1kΩ; AUX 38Vrms/8.1kΩ
XLR 7.7Vrms 1.66kΩ; AUX 41Vrms/8.8kΩ
XLR 9.5Vrms 2kΩ; AUX 43Vrms/9.1kΩ

Note: all voltages listed for -.5dbfs, 0dbfs is 6% higher
unbalanced impedance about 30% less

Frequency response:

.8Hz-320kHz @ 32b/768kHz -3db, depends on the interpolation filter setting

all harmonics level <-140db(typical)

Crosstalk: < -160db@1kHz if not used inputs are shorted

Windows 10 doesn't need the driver but Windows 7 does and the driver installation may require manual installation. So, if you are not ready for that the good idea just update W7 for W10/11.

The Windows driver, Tweak_CosmosADC_DM, FW and extra info are here.

https://discord.gg/U9Z28KC