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E1DA Cosmos APU - Teardown and personal thoughts and measurements

thin bLue

Active Member
Reviewer
Joined
Jul 29, 2019
Messages
172
Likes
341

thin bLue

Active Member
Reviewer
Joined
Jul 29, 2019
Messages
172
Likes
341
hm, what about the knob gain control, just replace that for your switches? o_O
Knob with gain(range) selecter will be smart solutions.
->Wide range with No extremely sensitive knob

Topping's Headphone Amps are great examples!
 

eeMGee

Member
Joined
Sep 22, 2022
Messages
7
Likes
6

oal

Member
Joined
Mar 22, 2021
Messages
20
Likes
16
Location
Tokyo, Japan
Nice review. If you sell the Scaler, I will definitely buy it! Having said that, it would have been nice if the APU's 1kHz/10kHz notch switch were 1kHz/No-notch switch. I do not use 10kHz notch, however, the No-notch option will be useful for various measurements such as J-Test, multi-tone signal, etc. The APU can be used as an input buffer for the ADC. My primary issue with Cosmos ADC is low impedance, gain control is only secondly.
 
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