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Post by matt on Sept 11, 2010 19:35:45 GMT -5
The only downside was I found out from Eric that the USB port was only going to support 16/44.1 and 16/48. I was hoping that they would at least support 24/96 since the current USB's on PC's will support 24/96. All the S/PDIF ports will support up to 24/192. Jeff That is actually a good news for me. Supporting the higher bits and frequencies is not covered by the USB standard and will require special drivers. This setup sounds like it will likely work on all computers. My music library is 16/44.1 with the exception of some high-fi multichannel stuff, which the XDA-1 will not do anyway (because it is limited to stereo). |
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Post by eirik84 on Sept 14, 2010 0:25:11 GMT -5
In a mail from Lonnie on 30. august, he said the USB will have 24/192..
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Post by jlafrenz on Sept 14, 2010 18:30:35 GMT -5
All inputs will support 24/192.
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Post by roadrunner on Sept 14, 2010 19:35:50 GMT -5
All inputs will support 24/192. In addition, Lonnie told me that it will support all combinations automatically without the need for installing any device drivers.  |
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Post by Porscheguy on Sept 14, 2010 19:42:53 GMT -5
All inputs will support 24/192. In addition, Lonnie told me that it will support all combinations automatically without the need for installing any device drivers. In addition to that it will support my exwife and my old girlfriend :-) |
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Post by malibujeff on Sept 14, 2010 22:09:12 GMT -5
All inputs will support 24/192. In addition, Lonnie told me that it will support all combinations automatically without the need for installing any device drivers. Not possible. Do a little reading. USB on a windows PC has to have a custom driver to support 24/192. This review of the M2Tech hiFace has a very good explanation concerning USB: www.computeraudiophile.com/content/M2Tech-hiFace-Asynchronous-USB-SPDIF-Converter-ReviewIf that does not convince you, read this review of the Wyred4Sound DAC2. It notes that "24/192 async USB via proprietary drivers" www.6moons.com/audioreviews/wyred4/dac.htmlBut, I hope you guys are correct and the USB will support 24/192. |
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Post by phyzar on Sept 15, 2010 5:51:41 GMT -5
malibujeff: The majority of USB enabled DACs use the USB 1 Standard. The bandwidth of this standard is limited to 16bit / 48khz. If you use the USB 2 standard the bandwidth for 24bit 192khz is sufficient and can be used with standard drivers. About proprietary async drivers.... Per default and with standard drivers, the OS takes care of how Data packages are sent to a USB device and the soundcard/receiver chip is a "slave". This leads to more jitter because of interruptions etc. Async drivers "slave" the PC and do their own data package management. This leads to lower jitter. So async is the better and more complex concept, but 24bit / 192khz is possible through standard USB 2. I´m curious how Emo implemented it... Cheers Wieland
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Post by malibujeff on Sept 15, 2010 6:57:22 GMT -5
malibujeff: The majority of USB enabled DACs use the USB 1 Standard. The bandwidth of this standard is limited to 16bit / 48khz. If you use the USB 2 standard the bandwidth for 24bit 192khz is sufficient and can be used with standard drivers. About proprietary async drivers.... Per default and with standard drivers, the OS takes care of how Data packages are sent to a USB device and the soundcard/receiver chip is a "slave". This leads to more jitter because of interruptions etc. Async drivers "slave" the PC and do their own data package management. This leads to lower jitter. So async is the better and more complex concept, but 24bit / 192khz is possible through standard USB 2. I´m curious how Emo implemented it... Cheers Wieland Yes, 24/192 audio is possible with USB 2, but not without a custom/proprietary dirver. More good reading on the topic here: www.computeraudiophile.com/content/Asynchronicity-USB-Audio-Primer Here is another good article on the Wavelength Audio, ltd web site that specifically talks about what it takes to make 24/192 work on a windows PC. Wavelength makes high end DAC's: www.usbdacs.com/hs24192/hs24192.html |
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ratso
Emo VIPs 
rats have rights
Posts: 381
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Post by ratso on Sept 15, 2010 13:42:23 GMT -5
ok a little less confused..well, cant I just use logitech touch to my umc-1? Where I get really nubbed out is the part where you convert digital to analog..why would I want to do this? I would think digital sounds better? You cannot listen to digital... Everything must be converted to analog before it is amplified and sent to the speakers... The conversion to analog from digital is one of areas that can make a large sound improvement.. which, to clarify, the touch does. you don't need anything to convert the digital signal to analog - the touch has a dac built in. as a matter of fact, ANY digital device like your cd player has a built in dac if it has RCA outputs on the back. the issue is, how good is the built in dac in your devices like the touch. this external dac allows you to bypass the built in dac and the hope is that the emotiva will be a better sounding dac. this, i should mention, is controversial and in some circles is akin to upgrading your power cords for better sound. a lot of these terms that are kicked around as being relevant to better sound, like "jitter" are debated pretty hot and heavy by EE's. so your mileage may vary. i am not trying to start a flame war here, just to get both sides across so that a self described noob can make a better decision. i myself am leaning towards getting one of these if it makes any diff. |
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Post by phyzar on Sept 16, 2010 3:44:29 GMT -5
malibujeff: You are right about the proprietary drivers. I wasn´t aware of that. It seems that the standard drivers are limited to 24/96 or even lower. There´s a lot of confusion on that topic... Sorry for the misleading information. Cheers Wieland
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Post by carlp336 on Oct 11, 2010 20:45:07 GMT -5
manual online ?
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Post by autocrat on Oct 11, 2010 23:05:12 GMT -5
'scuse my ignorance, but:
I thought the AD1955 was Analog Devices, not Burr Brown (TI). Has there been more "consolidation" in the industry?
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Post by Botafogo on Oct 12, 2010 4:37:42 GMT -5
What is the gross weight of XDA-1? I live in Brazil where everything is very expensive because of high taxes, where the price of shipping is also charged.
Thanks!
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Post by joel on Oct 12, 2010 5:01:02 GMT -5
This may have been asked before but with so many threads and confusion I tried searching with no result. So. A subwoofer with the XDA-1? I'm getting my passive subwoofer I built in one month, hopefully around the same time I get the XDA-1. I'll be using 2xUPA-1's with the DAC and this ( www.minhembio.com/forum/uploads/monthly_04_2010/post-160770-1270622335.jpg ) amplifier for my sub. Is there any way at all to get my sub working with my mains, I know there's no bass management with the XDA but I just want my sub to play and test it out before I order an USP/XSP-1. High level inputs/outputs maybe, but how do I get it working properly?  Thanks! |
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Post by phyzar on Oct 12, 2010 7:32:22 GMT -5
joel: The XDA1 has balanced and unbalanced stereo outputs that can be used at the same time. Just connect the UPA1´s via balanced output and the subwoofer via RCA/Cinch. Then set the crossover frequency, phase and volume on the subwoofer amp and you are done. The only disadvantage is that your mains will be driven fullrange. Cheers Wieland
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exze
Seeker Of Truth
Posts: 1
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Post by exze on Oct 12, 2010 9:41:27 GMT -5
Hi
does anyone know if the XDA-1 usb will work with linux?? without any special drivers?. i have a htpc with xbmc and flac music
best regards Mikael
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Post by joel on Oct 12, 2010 9:45:41 GMT -5
joel: The XDA1 has balanced and unbalanced stereo outputs that can be used at the same time. Just connect the UPA1´s via balanced output and the subwoofer via RCA/Cinch. Then set the crossover frequency, phase and volume on the subwoofer amp and you are done. The only disadvantage is that your mains will be driven fullrange. Cheers Wieland Thanks a lot! My mains can handle fullrange quite well, I'd prefer a crossover at 80Hz but I can't decide whether I should go for the XSP or the USP. So this will have to do for now. |
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Post by afridi on Oct 12, 2010 10:25:28 GMT -5
I know I'm gonna catch hell for this but I wonder how it will compare to the Beresford TC-7520 as they are in the same price range. Obvious differences are the XDA-1 has balanced/unbalanced outputs while the Beresford TC-7520 has a headphone jack. I have the Beresford and I wasnt impressed. Too recessed and artificial sounding. My Benchmark DAC sounds way better. Am hoping the Emotiva is better than the Beresford. |
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Post by roadrunner on Oct 12, 2010 11:59:07 GMT -5
joel: The XDA1 has balanced and unbalanced stereo outputs that can be used at the same time. Just connect the UPA1´s via balanced output and the subwoofer via RCA/Cinch. Then set the crossover frequency, phase and volume on the subwoofer amp and you are done. The only disadvantage is that your mains will be driven fullrange. Cheers Wieland Thanks a lot! My mains can handle fullrange quite well, I'd prefer a crossover at 80Hz but I can't decide whether I should go for the XSP or the USP. So this will have to do for now. Joel To get the maximum utility from the XDA-1, the XSP-1 is the perfect tool. The dual discrete output stage of the XDA-1 is exactly the same as the output stage employed in the XSP-1. Thus, piping the signal thru the XSP-1 would produce the same performance as connecting the XDA-1 directly to your power amps. The XSP-1 also has a true external processor loop built-in to complement the connectivity beyond just the HT bypass switch and the analog bass management. This will be one dynamite combo to add to your system. ;D |
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Post by joel on Oct 12, 2010 12:40:29 GMT -5
Thanks a lot! My mains can handle fullrange quite well, I'd prefer a crossover at 80Hz but I can't decide whether I should go for the XSP or the USP. So this will have to do for now. Joel To get the maximum utility from the XDA-1, the XSP-1 is the perfect tool. The dual discrete output stage of the XDA-1 is exactly the same as the output stage employed in the XSP-1. Thus, piping the signal thru the XSP-1 would produce the same performance as connecting the XDA-1 directly to your power amps. The XSP-1 also has a true external processor loop built-in to complement the connectivity beyond just the HT bypass switch and the analog bass management. This will be one dynamite combo to add to your system. ;D Thanks for the input! I would definately go for the XSP-1, but since I'm a student my money is a bit limited for the time being. So I can't afford the XSP right away But I'll make sure it's included in my setup soon enough, I'll just rob a bank or something ;D |
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