SKU: 90643449931

E1DA Cosmos Scaler High-Performance Low-noise Low-distortions Variable Gain Pre-AMP

Sale price$116.10 Regular price$129.00
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Description

E1DA Cosmos Scaler High-Performance Low-noise Low-distortions Variable Gain Pre-AMPSpecifications: Device purpose: Ultra low THD+N variable gain buffer for Cosmos ADC Materials: Sandblasted black anodized aluminum laser mark OPA1612+OPA1656 composite,Viking resistors,Murata, Samsung C0G caps, Taiwanese connectors relays Dimensions: PCBA 90x50x29mm104x61x39mm Weight: PCBA 40g 160g Power: USB C +5V rail, <500mA current Input: 2 channels balanced 200 100kOhm bal unbal 3. 5mm jack up to 20 10Vrms bal unbalIf only the left input is

 
 

Specifications:

Device purpose: Ultra-low THD+N variable gain buffer for Cosmos ADC
 
Materials: Sandblasted/black anodized aluminum/laser mark/OPA1612+OPA1656 composite,Viking resistors,Murata, Samsung C0G caps, Taiwanese connectors/relays
Dimensions: PCBA 90x50x29mm104x61x39mm
 
Weight: PCBA 40g / 160g
 
Power: USB-C +5V rail, <500mA current
 
Input:
2 channels balanced 200/100kOhm bal/unbal
3.5mm jack up to 20/10Vrms bal/unbal
If only the left input is plugged, the signal is routed to the right channel as well, to implement MONO mode for Cosmos ADC. Cosmos APU's short cables are suitable for Scaler as well. 

Output: 
2 channels balanced 20/10hm bal/unbal
3.5mm jack up to 20/10Vrms bal/unbal
Cosmos APU's short cables are suitable for Scaler as well.
 
Variable gain table:   
in db 0, 7, 10.7, 13.38, 15.788, 17.38, 18.673, 19.844, 21.08, 21.98, 22.764, 23.513, 24.336, 24.965, 25.527, 26.078
16 positions controllable by the knob, in the "Auto" position Scaler works like a ultrafast autoranger(100mS) with the left channel target 4.5Vrms.
The right channel output voltage is ignored. 20Hz-20kHz is the valid frequency range for autoranger.
 
Frequency Response: 
.2Hz-570kHz @ 26db gain +.5/-3db, .2Hz-7..11MHz @ 0db gain 10MHz area depends on a cable(Scaler's output is stable up to 7m of mic cable) capacitance
 
Residual Noise:   
250nVrms(A) @ 26db gain typical 
 
Distortions:
The only indirect measurement method is available at such a low level due to a huge loop gain OPA1612+OPA1656 composite(170db@1kHz/130db@10kHz)
Something like 100x times less than Cosmos ADC or H3 -175db@1kHz at 0db gain
Crosstalk:

L->R -133db, R->L -158db@1kHz unused input is shorted @0db gain 

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 90643449931

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Kallie
Lowell, US
★★★★★ 3
Janky
These are very cheaply made and barely stay on. The clasp to keep the diapers closed breaks half of the time when I'm trying to put a fresh diaper on. Won't be buying these again.
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Reviewed in the United States on January 30, 2023
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Charlotte
New York, US
★★★★★ 5
Works Well
These diapers fit well right now, but like any diaper, we will be watching the weight of the baby and move up a size as the weight limit gets close, as that affects the amount of leakage that can occur. They are thin and easy to fit in a small diaper bag that goes anywhere, yet they are also absorbent. The designs are cute, and I like that it has a wetness indicator on the outside. They are absorbent for a few hours, but I wouldn't trust them for more than 4 hours because they are thin; however, that's the negative of any thinner diaper on the market, at least that's what I've found. The baby doesn't suffer from any irritation on his sensitive skin, which is also a big plus and is a necessity, as far as I'm concerned.
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Reviewed in the United States on June 24, 2022
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Verified Purchase
BandC928
Charlottesville, US
★★★★★ 1
I've used babyganics for two children and will never buy again
I've used babyganics diapers for years and have always loved them. They used to be soft, incredibly absorbent and with a minimalist design that didn't show through light colored baby clothes. They were the diapers I recommended to everyone as a cloth diaper alternative and I was willing to pay the extra $ for them. What happened?!?! These have a brightly colored yet faded appearing design on them, they are rough and they constantly leak (like EVERY time). They are also small! I sized up one as I always used to do with babyganics but these size 2 diapers for 12-18 lb babies barely fit my 10 lb baby. I switched to Millie Moon diapers and find them a million times better. They're everything babyganics used to be.
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Reviewed in the United States on December 6, 2022
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Webb
Grantham, US
★★★★★ 5
Natural and Soft
Fun colorful patterns that are great for boys and girls and are soft to the touch. They are thin when dry which is great, but they still hold a lot. They have worked great well overnight with zero leaks and the baby stays dry. Fit is snug but not too tight and they move well with baby! Overall very happy with the "Babyganics, Absorbent, Breathable, Triple Dry Protection Diapers".
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Reviewed in the United States on September 12, 2022
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giovanna
West Palm Beach, US
★★★★★ 4
Still pretty good
We had their “old version” - different pattern and also apparently a different material? Because these don’t seem as good quality. But they are still more absorbent than most
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Reviewed in the United States on February 21, 2023

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