tag:blogger.com,1999:blog-6890046273025265768.comments2024-03-18T03:10:30.572-07:00NwAvGuyNwAvGuyhttp://www.blogger.com/profile/00309644608738074125noreply@blogger.comBlogger5157125tag:blogger.com,1999:blog-6890046273025265768.post-6649561210663667332012-08-31T10:44:33.465-07:002012-08-31T10:44:33.465-07:00@Delerue, here is a table of the main parameters o...@Delerue, here is a table of the main parameters of the headphone outputs of most Xonar products from various sources. It is not complete, but maybe the information below is still useful:<br />- Xonar U3: 23.6 Ω (source: NwAvGuy article), DRV601 (not sure)<br />- Xonar DG/DGX: ~10 Ω, DRV601 (my guess based on photos of the board, may be incorrect)<br />- Xonar DS/DSX: unknown, NE5532/NJM5532<br /Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-23498464456767369272012-08-31T06:07:37.754-07:002012-08-31T06:07:37.754-07:00Resampling from 44.1 to 48 kHz can be made transpa...Resampling from 44.1 to 48 kHz can be made transparent without much load on a CPU that is used in a typical current desktop PC. However, low quality implementations (either as a result of excessive optimization for speed, or simply incompetence) probably do exist, so it is only possible to tell if a particular converter is good enough after testing it.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-26671190306955314852012-08-31T05:33:43.481-07:002012-08-31T05:33:43.481-07:00The amplifier is allegedly a TI DRV601RTJR, which ...The amplifier is allegedly a TI DRV601RTJR, which is apparently also used on the Xonar DG/DGX cards with 10 Ω output impedance (this information is based only on pictures of the PCB, I do not actually have the Xonar DG). Considering that this chip is only intended for use as a line output buffer driving 600 Ω or higher impedance loads, it does not perform very badly in the 33 Ω tests, but a more Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-46052135277090170692012-08-28T23:28:42.004-07:002012-08-28T23:28:42.004-07:00here a solution for Sound Blaster X-Fi Go! Pro Bu...here a solution for Sound Blaster X-Fi Go! Pro Buzz (Hiss) Problem :<br /><br />http://incentives-matter.blogspot.com/2012/03/solution-to-sound-blaster-x-fi-go-pro.html五芒星https://www.blogger.com/profile/03403618494762974080noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-64357529341446009432012-08-28T19:26:44.656-07:002012-08-28T19:26:44.656-07:00I have 24 ohm HD 201 headphones. How would the bas...I have 24 ohm HD 201 headphones. How would the bass roll off/distort? Would it still be bad?TrantaLockedhttps://www.blogger.com/profile/04192476615444275798noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-34940055064465796872012-08-28T12:59:48.101-07:002012-08-28T12:59:48.101-07:00Hey NWAVGuy I had a quick question about ohm imped...Hey NWAVGuy I had a quick question about ohm impedance because I got in a bit of a dust up with some Nuforce gear loyalist at Headfi and wanted to get your take on it.<br /><br />Some guys are asserting that output impedance doesn't matter with planar magnetic headphone and were using old datasheets from Yamaha orthos to prove it.... my thing was that that those Yamaha orthos were built well UNREFORMEDhttps://www.blogger.com/profile/00552756187140713771noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-71826089374448224082012-08-28T05:44:41.483-07:002012-08-28T05:44:41.483-07:00Hi, I'm curious as to how do we construct an a...Hi, I'm curious as to how do we construct an audibly transparent output switch. <br /><br />A little summary of how I listen to audio<br />PC->ODAC->O2->IEMs<br />PC->ODAC->Nearfield monitors<br /><br />It gets a little tiring plugging the RCA jacks in and out, so I was wondering if it was possible to put an audibly transparent switch after the ODAC so I can simply use the Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-53476516353800420192012-08-27T09:32:43.878-07:002012-08-27T09:32:43.878-07:00I remember reading somewhere that you are not goin...I remember reading somewhere that you are not going to do much investigating into the HD 598's. However, I was wondering if you have listened to them at all. I own a pair, and I am planning to upgrade to the HD 650's. I have read many reviews, regarding the 598's, from supposed "audiophiles" stating that they are astonished at the level of acurate detail top to bottom. NeuroMusicianhttps://www.blogger.com/profile/08192675153356030964noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-52486166128139405472012-08-27T06:15:58.864-07:002012-08-27T06:15:58.864-07:00From DMarasovic at Head-Fi:
"According to my ...From DMarasovic at Head-Fi:<br /><i>"According to my measurements the output impedance of headphone output is about 10,23 ohm (+- 0,03 ohm). It was measured at 100, 1000, 10000 Hz; at 100mV, 1,7 V; with load resistors of 30,66 and 222,4 ohm."</i><br />So, despite using the LME49600, it is about the same as the ST/STX sound cards. Maybe the resistors are needed for better compatibility Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-491215053619556282012-08-26T22:45:55.463-07:002012-08-26T22:45:55.463-07:00Sorry disturbing your extremely interesting discus...Sorry disturbing your extremely interesting discussion. But I do not even get RMAA 6.x running on none of my PCs or Noteboosks (XP/Win7) after installation. It immediately crashes due to application errors,<br /><br />Reiner<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-36987010053107541252012-08-23T21:02:02.654-07:002012-08-23T21:02:02.654-07:00I was hoping that you would put up the full set of...I was hoping that you would put up the full set of measurements and comparisons you mentioned in April.Simonhttp://www.elmura.comnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-2092471298424962862012-08-23T16:06:54.987-07:002012-08-23T16:06:54.987-07:00Ok my first O2 amp passed all the checks and volta...Ok my first O2 amp passed all the checks and voltages....and it works wonderfully. This little amp is so simple and easy to build...pay attention and be careful handling the parts, Q1, Q2 etc...now to figure out a case and maybe an integrated ODAC with RCA's and 1/4 phone jack.<br />Thanks again for such a wonderfully honest design!<br /><br />All the best<br />Alexlost33https://www.blogger.com/profile/08954109482039273818noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-79513405734127719822012-08-23T15:52:32.580-07:002012-08-23T15:52:32.580-07:00Hey NwAvGuy!
I've always been an admirer of t...Hey NwAvGuy!<br /><br />I've always been an admirer of the EHP-02 amp.<br />I just placed an order with Epiphany Acoustics for the EHP-02D, with the built in DAC!<br /><br />I'm looking forward to reviewing it and using it especially!<br />How would you say, the O2D compares to the ASUS Xonar D1 PC soundcard?<br /><br />-ChrisChrishttp://www.totallydubbed.net/noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-71230811944945624392012-08-22T20:42:15.164-07:002012-08-22T20:42:15.164-07:00@SatListings
No. 24/96 is sonically superior (to ...@SatListings<br /><br />No. 24/96 is sonically superior (to the human ear) and much smaller to boot. The gory details are here: http://people.xiph.org/~xiphmont/demo/neil-young.htmljuantendo8https://www.blogger.com/profile/05443932446005382469noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-22563171013541161652012-08-21T07:42:43.312-07:002012-08-21T07:42:43.312-07:00how is clip different from clip+?
how is clip different from clip+?<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-75549366760133646372012-08-21T06:20:19.918-07:002012-08-21T06:20:19.918-07:00Please publish a short new post. These comments a...Please publish a short new post. These comments are awkward to wade through.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-66113467465291526492012-08-21T04:53:56.360-07:002012-08-21T04:53:56.360-07:00Thanks for the article: I must checkout the McGurk...Thanks for the article: I must checkout the McGurk effect.<br />As an electronic engineer, I find your comments very easy to accept; they accord with my experience.<br />You may be interested in my purchase of some headphones a while back. I found a nice little hifi shop that stocked items with various levels of quality, and aimed to spend about £50 on headphones (15 years ago!). I went armed Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-26321361458769637452012-08-20T11:23:31.240-07:002012-08-20T11:23:31.240-07:00I plan to try and make some downloadable files whe...I plan to try and make some downloadable files when I have time of various examples of audible differences but I need to get caught up with my articles.NwAvGuyhttps://www.blogger.com/profile/00309644608738074125noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-32561081450276552142012-08-20T11:20:25.032-07:002012-08-20T11:20:25.032-07:00It should be fine unless you have unusually low AC...It should be fine unless you have unusually low AC line voltage. Ideally about 14 volts is ideal and 15-16 volts is also OK but the O2's regulators will run a bit hotter. Because the audio circuitry in the O2 has such high power supply rejection even some noise on the power supply (such as the ripple you get if the AC voltage is too low) barely changes the audio performance in a measurable NwAvGuyhttps://www.blogger.com/profile/00309644608738074125noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-60314936604292162382012-08-20T08:54:33.635-07:002012-08-20T08:54:33.635-07:00Hi,
Can you make files with these differences?Hi,<br />Can you make files with these differences?Anonymoushttps://www.blogger.com/profile/09425207056969571648noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-52337316829735353702012-08-18T13:22:25.851-07:002012-08-18T13:22:25.851-07:00The Jaycar MP3020 is rated at 12V this seems a lit...The Jaycar MP3020 is rated at 12V this seems a little close to the minimum?Danielhttps://www.blogger.com/profile/03579451127151648932noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-45707350407610494032012-08-18T02:37:56.919-07:002012-08-18T02:37:56.919-07:00"1) The volume knob arrived unassembled and I..."1) The volume knob arrived unassembled and I have no screwdriver to fix it"<br /><br />Why? You can't go through life without even basic hand tools. You need to purchase a jeweler's screwdriver set with multiple flat and phillips screwdrivers, full size phillips screwdrivers in sizes 1, 2, 3, and 4, full size flat bladed screwdrivers in sizes 3/32", 3/16", 1/8"Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-4673947853346104542012-08-17T10:57:44.088-07:002012-08-17T10:57:44.088-07:00Thanks for the Keithley tip. The UPV is a solid an...Thanks for the Keithley tip. The UPV is a solid analyzer for what it does. But it's rather "old school" in that it can't leverage the power of a PC to nearly the same extent as an Audio Precision or dScope III. Considering the UPV is around the same price as the dScope and 5xx series APs it's not really a viable competitor.NwAvGuyhttps://www.blogger.com/profile/00309644608738074125noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-29184515316850811802012-08-16T06:42:08.723-07:002012-08-16T06:42:08.723-07:00Is there going to be a 24bit/192khz version at all...Is there going to be a 24bit/192khz version at all??M571https://www.blogger.com/profile/09132404528558775725noreply@blogger.comtag:blogger.com,1999:blog-6890046273025265768.post-89943934913145920382012-08-15T14:01:51.428-07:002012-08-15T14:01:51.428-07:00I am also curious about the same product (Lexicon ...I am also curious about the same product (Lexicon Alpha) as the person above. How does it compare to the Behringer UCA202? I see that the Lexicon Alpha has balanced outputs (TRS), so that is the primary reason I am looking into it. Thanks!Anonymousnoreply@blogger.com