tag:blogger.com,1999:blog-4781727111866727703.post8078899272982567822..comments2024-03-29T00:15:52.117-07:00Comments on <em>Archimago's Musings</em>: EARLY LOOK: E1DA Cosmos ADC - affordable high performance measurements for the audio hobbyist!Archimagohttp://www.blogger.com/profile/08642574001287787545noreply@blogger.comBlogger37125tag:blogger.com,1999:blog-4781727111866727703.post-40340657505246174152022-09-08T16:19:31.032-07:002022-09-08T16:19:31.032-07:00This comment has been removed by the author.Doughttps://www.blogger.com/profile/12981828921649308703noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-11761770322458327762022-09-08T16:12:19.943-07:002022-09-08T16:12:19.943-07:00This comment has been removed by the author.Doughttps://www.blogger.com/profile/12981828921649308703noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-67024888842599574962022-04-21T10:52:11.820-07:002022-04-21T10:52:11.820-07:00Hi Ju,
Typically I don't use the autoranger fo...Hi <em>Ju</em>,<br />Typically I don't use the autoranger for DAC measurements (one less device and wiring in the measurement path) but will use it for amplifiers. Being mindful of the impedance is the key I think...Anonymoushttps://www.blogger.com/profile/13381312798065946271noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-78684286040041708422022-04-21T05:24:38.933-07:002022-04-21T05:24:38.933-07:00Hello !
I'm following your journey with atten...Hello ! <br />I'm following your journey with attention :) Do you still use the autoranger for DAC & Amplifier measurements ? Particularly for it's input impedance ?Ju'https://www.blogger.com/profile/03813117575635601681noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-87903288251582223262022-01-27T13:57:44.726-08:002022-01-27T13:57:44.726-08:00? What are we looking at?
? What are we looking at?<br />Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-81218335890580883382022-01-27T13:57:16.335-08:002022-01-27T13:57:16.335-08:00If you want best dynamic range, the 5V out will gi...If you want best dynamic range, the 5V out will give you a little bit more!<br />Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-19254395605954447132022-01-27T01:18:14.996-08:002022-01-27T01:18:14.996-08:00 RME ADI 75,73 dbFS and the Cosmos ADC -61,35 dbF... RME ADI 75,73 dbFS and the Cosmos ADC -61,35 dbFS equivalent?Anonymoushttps://www.blogger.com/profile/08789454665841188157noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-77012038058678625382021-10-20T06:19:32.201-07:002021-10-20T06:19:32.201-07:00Thank you. That was exactly what I wanted.
Thank you. That was exactly what I wanted.<br />Anonymoushttps://www.blogger.com/profile/01585662146411115958noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-84397102954060570622021-10-17T15:22:59.984-07:002021-10-17T15:22:59.984-07:00Hello, do you suggest 4v or 5v for topping d90se i...Hello, do you suggest 4v or 5v for topping d90se into an benchmark hpa4?Shizo1337https://www.blogger.com/profile/15583814517357552287noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-69432939246167356682021-10-16T10:16:21.270-07:002021-10-16T10:16:21.270-07:00Thanks for the link Michael and I see in the produ...Thanks for the link <em>Michael</em> and I see in the product description there are images and items about the I2S layout also. Haven't had a chance to open up the box or try this myself.<br /><br />Ivan mentioned about selling the device "binned" into the various Grades. Good to see that he's proceeding with that. I'm sure a significant bit of work to "cherry pick"Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-7948324467459235192021-10-16T10:10:21.091-07:002021-10-16T10:10:21.091-07:00Nice work. Thanks Mans!Nice work. Thanks <em>Mans</em>!<br />Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-22682319426535226232021-10-16T06:28:31.697-07:002021-10-16T06:28:31.697-07:00This ASR thread has some more information: https:/...This ASR thread has some more information: https://www.audiosciencereview.com/forum/index.php?threads/e1da-cosmos-adc.27038/Mans Rhttps://www.blogger.com/profile/16079233294599701785noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-54731790840095937422021-10-16T03:29:29.364-07:002021-10-16T03:29:29.364-07:00Cosmos ADC appeared on aliexpress. I have already ...Cosmos ADC appeared on aliexpress. I have already ordered. Buy quickly :). Three versions - precision. The worst Grade C - is missing. Medium Grade B - many. Sometimes there is the best A grade, but it is quickly sold out. <br /><br />https://aliexpress.com/item/1005003391728199.htmlMichaelhttps://www.blogger.com/profile/15676402664382040106noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-5249533192720144142021-10-14T16:15:59.648-07:002021-10-14T16:15:59.648-07:00The Cosmos has I2S pins on the PCB ready to be use...The Cosmos has I2S pins on the PCB ready to be used with external bridges. Those work alongside the USB port. Cosmos is always master.<br />If you have the required hardware and know-how, then you can use those pins to add another output to it.staticV3https://www.blogger.com/profile/14169708776895191230noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-16040984505262150892021-10-11T19:57:41.656-07:002021-10-11T19:57:41.656-07:00I already have a separate microphone preamplifier ...I already have a separate microphone preamplifier and audio interface.Anonymoushttps://www.blogger.com/profile/04763930657626465041noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-52645638588289410412021-10-11T19:57:01.934-07:002021-10-11T19:57:01.934-07:00I want to use it as external AD converter hardware...I want to use it as external AD converter hardware to connect the microphone, but is there a way to change the output stage to ADAT, SPDIF, AES/EBU, etc. to connect it to the audio interface digital input other than USB-C?<br />Anonymoushttps://www.blogger.com/profile/04763930657626465041noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-89414789131507264792021-10-08T06:41:31.461-07:002021-10-08T06:41:31.461-07:00Probably some preamps might suffer a bit due to th...Probably some preamps might suffer a bit due to the low input impedance of the Cosmos ADC, but most DACs or other audio sources from today are handling very well 600 Ohms impedance on their outputs.<br /><br />This ADC is prefect for measuring today DACs, headamps and power amps as well, so quite a bargain for its price.raoultrifanhttps://www.blogger.com/profile/16699729146329389483noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-14071289413514177252021-10-07T15:23:02.295-07:002021-10-07T15:23:02.295-07:00Hi Archimago,
I'm thinking of using my microp...Hi Archimago,<br /><br />I'm thinking of using my microphones with this- however, it is hard to find good preamps at reasonable budgets. Instead of going for something like this https://www.radialeng.com/product/twin-servo/specifications , would it still be worthwhile using the Cosmos with something like this https://artproaudio.com/product/micromix-microphone-preamp-w-phantom-power/#overviewP.S.https://www.blogger.com/profile/06910025289099271324noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-26860127501503840952021-10-02T11:24:37.281-07:002021-10-02T11:24:37.281-07:00If your microphone works without phantom power and...If your microphone works without phantom power and outputs close to 1.7Vrms without preamplification, then yes.<br />Otherwise, an external Preamp and Phantom power supply will be required.staticV3https://www.blogger.com/profile/14169708776895191230noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-28796182328406023992021-09-30T08:44:51.691-07:002021-09-30T08:44:51.691-07:00Can I connect to the microphone?Can I connect to the microphone?192Kbpshttps://www.blogger.com/profile/13782401460468929462noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-72631022491559052822021-09-22T17:34:42.184-07:002021-09-22T17:34:42.184-07:00Hi David,
Well, I suppose we can go all the way do...Hi <em>David</em>,<br />Well, I suppose we can go all the way down to the theoretical thermal noise limit of resistors and capacitors ;-).<br /><br />But of course, there is a limit to how much anyone truly "<em>needs</em>". And if we're honest with ourselves, can we actually hear the difference?<br /><br />Personally, I don't think we even need THD+N -100dB much less beyond Archimago's Musingshttps://www.blogger.com/profile/14326929293463498820noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-36225322320539026502021-09-21T22:52:19.562-07:002021-09-21T22:52:19.562-07:00In light of these two excellent products (Cosmos A...In light of these two excellent products (Cosmos ADC and Topping 90SE), are there clean and quiet sources out there with SINADs of 125dB - 130dB or better? I see this as the next limitation as ADCs and DACs are becoming better and better with each newer generation.David Mhttps://www.blogger.com/profile/15876565385510967813noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-39958237261273712032021-09-17T13:45:30.281-07:002021-09-17T13:45:30.281-07:00Hey Juergen,
Great hearing from you! Hope the trav...Hey <em>Juergen</em>,<br />Great hearing from you! Hope the travels over the summer smooth and fruitful!<br /><br />Yeah, I know a number of engineers and audio designers also use the RME ADI-2 Pro line for their measurements at home, then the AP at work... For those high-resolution, balanced DACs (without too high impedance!) I think this E1DA Cosmos provides fantastic resolving power with low Archimago's Musingshttps://www.blogger.com/profile/14326929293463498820noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-22880053623423749682021-09-17T01:50:30.737-07:002021-09-17T01:50:30.737-07:00Hi Archi
Yes I know, I am late with this party (w...Hi Archi<br /><br />Yes I know, I am late with this party (was too busy), but yes, great article for an upcoming great product. Please let me know, when this ADC will be available, as I want to buy one, for the “on the go” measurements. Even I have right now the RME ADI-2 Pro FS R BE for that.<br /><br />And good to read, that you bought the Topping D90SE for “reference”. Right now, I do have theJR_Audiohttps://www.blogger.com/profile/00547557948411188806noreply@blogger.comtag:blogger.com,1999:blog-4781727111866727703.post-44286975496537670332021-09-15T19:36:18.378-07:002021-09-15T19:36:18.378-07:00Hi Vuki,
Of course in time there will be more prod...Hi <em>Vuki</em>,<br />Of course in time there will be more products using the ES9822 ADC so keep an eye on the upcoming generations and features you want.<br /><br />Like it took years for companies to achieve the kind of performance we're finally seeing now with the ES9038Pro (ie. Topping D90SE), so too it might take time to optimize the ES9822 performance.<br /><br />The Cosmos ADC is a Archimagohttps://www.blogger.com/profile/08642574001287787545noreply@blogger.com