E1DA  Cosmos Scaler High-Performance Low-noise Low-distortions Variable Gain Pre-AMP
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
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 90643449931

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Larrisa D
Alexandria, US
★★★★★ 5
BUY THEM NOW!! the search is OVER! 🥳
Color: Blue, Size: Queen Size Set of 2, Color: Blue, Size: Queen Size Set of 2
pillow whore here 🤭 and I very rarely find anything worth writing a 5 star review for but let me just save you the time of searching anymore for the PERFECT pillow!!! BUY THEM! 😍 I promise you will NOT be disappointed!! I have spend thousands on pillows over the years, trying to find the perfect pillows... As someone who suffers from debilitating chronic pain and who has had multiple neck and back surgeries I'm very particular about pillows & have such a hard time finding one's that are comfortable, not too hard, not too soft but also offer great support. I FINALLY found them 🥹 and my hubby is Italian and stays hot but gets even hotter when he sleeps so finding an authentic cooling pillow has seemed impossible UNTIL now!! Just wow!! Now Im adding more to my cart while they are still 70% off 🥳🤩
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Reviewed in the United States on May 8, 2026
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Amazon Customer
Boise, US
★★★★★ 3
no thank you
Color: Blue, Size: Queen Size Set of 2
while they look great, they are not soft. I can not sleep with them. Woke with a headache.
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Reviewed in the United States on May 7, 2026
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Rochelle Johnson
Carnegie, US
★★★★★ 5
Loved the pillows
Color: Blue, Size: Queen Size Set of 2
I don’t get paid for reviews so if you want a real one here ya go …. These pillows are great in my opinion. They came vacuum sealed and popped right up “ big and fluffy” immediately, as in big enough I wasn’t sure they would fit in my pillow cases. I used them last night and even though they are full, big and fluffy they still smashed down to a proper size when I laid my head down. First night in a long time I did wake up with a headache. I was extremely happy with these pillows. Now cooling ….I didn’t really find a difference from a reg pillow but, that again just could be me. Hope this helps
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Reviewed in the United States on May 7, 2026
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MIRZA IRFAN BAIG
Fort Morgan, US
★★★★★ 5
Heavenly Sleep Upgrade – DIORIS Pillows Are a Dream Come True!
I’ve finally found the perfect pillows! The DIORIS Queen Pillows Set of 2 has completely transformed my sleep experience. From the moment I laid my head down, I felt like I was at a luxury hotel — but right in my own bedroom! These pillows strike the ideal balance between softness and support. The premium down alternative filling cradles the head and neck gently, yet offers just the right amount of firmness. Whether I sleep on my side, back, or stomach, these pillows adapt perfectly and keep me comfortable all night long. The slow-rebound, breathable fiberfill is a game changer. It stays cool, supports proper posture, and even helps reduce neck pain — something I’ve struggled with for years. I wake up feeling refreshed and ache-free, which is priceless.
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Reviewed in the United States on August 13, 2025
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Daliana guerra
Whiting, US
★★★★★ 5
Wonderful
Size: Cooling Queen, Size: Cooling Queen
I absolutely love these pillows From the very first night, I could feel the difference. They are incredibly comfortable, soft, and still provide great support for my neck and head. Plus, the modern design makes my bed look so much cleaner and more elegant. The fabric feels high quality, and the pillows keep their shape really well. I genuinely feel like I’m sleeping better since I started using them. Great value for the price, and I would definitely buy them again. Highly recommend
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Reviewed in the United States on May 27, 2026

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