E1DA Cosmos ADC

[staticV3]

@Groom all improvements are firmware related and can be applied to all units, new or old. The hardware has stayed the same since launch.

 

[Groom]

Ok, thank you!

Will order a Grade A now

 

[trl]

@Groom, you can anytime check the development and support of these boards here: https://discord.gg/AAus72ZEpu, where you can also contact Ivan in person. On Discord he is way faster in answering to your inquiries than he is here on ASR.

However, given the new Cosmos APU (see may previous post with teardown and measurements link) that can be "attached" to the Cosmos ADC, the 120 dB SINAD can be easily surpassed, so you may grab them both if you intend to measure audio devices above the 120 dB SINAD limit.

 

[Groom]

@Groom, you can anytime check the development and support of these boards here: https://discord.gg/AAus72ZEpu, where you can also contact Ivan in person. On Discord he is way faster in answering to your inquiries than he is here on ASR.

However, given the new Cosmos APU (see may previous post with teardown and measurements link) that can be "attached" to the Cosmos ADC, the 120 dB SINAD can be easily surpassed, so you may grab them both if you intend to measure audio devices above the 120 dB SINAD limit.

Thank you for the link!

I don´t want to make measurements. I´ll leave that to Amir and the experts here .

I´m just interested in the development of converters outside the pro audio / m.i. world and this is the first ADC so far, among myriads of great DACs.
Will test it with my preamps and fx-chain.

 

[trl]

Will test it with my preamps and fx-chain.

Looking forward for your thoughts on this ADC and details about the setup used.

Also, as a preamp, you can try the APU as well, given it's internal low-noise and the selectable 34dB/60dB.

 

[IVX]

And one more FW for Cosmos ADC, 352.8k sampling rate is corrected(it was noisy), but 705.6k is deleted.

 

[Groom]

Looking forward for your thoughts on this ADC and details about the setup used.

Also, as a preamp, you can try the APU as well, given it's internal low-noise and the selectable 34dB/60dB.

User error

 

[pkane]

I encountered a severe lack of resolution and narrowing of the stereo image when inserting the two (reverb tails completely gone etc.).
I expected a phase problem and tried different balanced cables and adaptors - they all yielded the same results.

Sounds like you might have Cosmos ADC set to mono mode, so the left channel is a combination of left and right:

MONO/STEREO modes are switchable by the UAC2 volume commands, for example, if your Windows volume slider position is less than 50%(0 to 49%) the device works as 2 channel ADC, if more than 50% it is a MONO ADC with summed Left+Right inputs mapped on the Left channel(Right input is always mapped to the Right channel). In the MONO mode, both channels need to be tied together L+ to R+, L- to L-.

Source: https://e1dashz.wixsite.com/index/cosmos-adc

 

[Groom]

Sounds like you might have Cosmos ADC set to mono mode, so the left channel is a combination of left and right:


Source: https://e1dashz.wixsite.com/index/cosmos-adc

I use a Mac. How should that happen?
Or is mono mode the default setting?
But this is exactly how it sounds.
Thank you!

 

[pkane]

I use a Mac. How should that happen?
Or is mono mode the default setting?
But this is exactly how it sounds.
Thank you!

On a Mac, you can set the level to below 50% under MIDI Setup app:

 

[Groom]

Thank you!
Will try that tomorrow morning.

 

[IVX]

Sounds like you might have Cosmos ADC set to mono mode, so the left channel is a combination of left and right:


Source: https://e1dashz.wixsite.com/index/cosmos-adc

Thank you!

 

[Groom]

On a Mac, you can set the level to below 50% under MIDI Setup app:

View attachment 257912

On Monterey I had to set it to 0 (mute) to make it work but now it´s fine

 

[trl]

User error

Do you have two usernames?
I see you have deleted the message plane was replying, wondering why.

 

[Groom]

Do you have two usernames?
I see you have deleted the message plane was replying, wondering why.

No, only one.
I edited it because my findings were based on user error (sic) and therefore meaningless

 

[Groom]

On a Mac, you can set the level to below 50% under MIDI Setup app:

View attachment 257912

One more question if I may, could you explain how to activate the Riaa curve on a Mac?

Thank you again!

 

[pkane]

One more question if I may, could you explain how to activate the Riaa curve on a Mac?

Thank you again!

Just set the level to around 0.3 in MIDI Setup app. Doesn't have to be exact, somewhere between 0.2 and 0.35 will also work:

 

[Groom]

Oh yes, once you get there it´s pretty obvious .

Thank you!

 

[enricoclaudio]

Quick question regarding purchasing place for the E1DA Cosmos ADC. I placed an order yesterday over HiFiGo.com for a Cosmos ADC and Cosmos APU. Is HiFiGo a trusted place to purchase these? I see good reviews for HiFiGo every where so I'm just asking to know if these ship directly from @IVX or if HiFiGo.com has their own stock. I went with HiFiGo because they include taxes and custom duties pre paid in their shipping rates to the US.

 

[IVX]

Yes, HiFiGo is our reseller, the same as Linsoul, and Audiophonics.