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Post by Deleted on Nov 19, 2012 10:43:00 GMT
Now I really am jealous. How'd you explain it to the wife? She just laughs when another parcel arrives, the worst criticism I get is 'where is that going to go'! So long as it doesn't get set up in the domestic domain ie downstairs there's never a problem.
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pagan
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Post by pagan on Nov 19, 2012 11:25:56 GMT
Alex Beat me into submission that power supplies make a difference in digital eh!!
You diidn't use a clean psu on the old TDA1541 CD player. hmm
Shaun I had jplay working with Jriver 16 ok, (except silences) Because I have both on there, 16 & 17, was probably why Jplay crapped one of them. Jplay does improve the sound yes, but I would be more interested in seeing what processes they stopping. I may look into in further....
"given the obvious level of animosity between Jplay and Jriver designers"
I don't blame them, the price of Jplay is way too high, Jriver has done all the work(programming). I can't see them doing things just to upset Jplay though, It's not worth it to them,,,,,,, but if jplay users, hammer, Jriver to sort oot out Jplay's tweaks. There's no info from Jplay and Jriver get blamed for it.
"which one i use depends on the listening experience I'm looking for. for serious listening IMHO Jplay mini player wins by a large margin SQ wise.(very obvious to me)"
Jplayer mini is a joke, but then, years ago with turntables, people use to clean record, stylus, and a variey of other things just to play a record, each time, and to play the other side too.......
Allan
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Post by Deleted on Nov 19, 2012 11:44:59 GMT
Hi All after being spurred on by Syd's success running Jplay with Foobar i thought I'd bite the bullet and have a go at running Jplay with Jriver 17. take care Glad you're sorted Shaun, I was surprised how flexible jplay is with foobar, can stop or add tracks. I seldom have the patience to select a playlist and sit back and listen . Syd
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Post by Deleted on Nov 19, 2012 14:12:01 GMT
I don't blame them, the price of Jplay is way too high, Jriver has done all the work(programming). I can't see them doing things just to upset Jplay though, It's not worth it to them,,,,,,, but if jplay users, hammer, Jriver to sort oot out Jplay's tweaks. There's no info from Jplay and Jriver get blamed for it. Hi John Fair points and I'd be feeling pretty much the same if i where in Jrivers position. just on the lack of info with TP circuits I've been thinking on that also. here is my take something to do with ESS NDA. partly perhaps but not completely i suspect. those TP guys have spent years refining the Buffalo but supposing they did make the circuits available. well I'm pretty sure that there would be a ''twisted Apple'' eBay alternative creeping out some time soon. not really fair IMHO no it does not forward the cause of DIY HiFi but is it really a purely DIY product? NO not in my opinion it's more of a halfway house between commercial and DIY. that's also fine in my opinion. yup they could just buy one and unpick the circuit but TBH its hard to see how they could make it any cheaper without compromise. I've seen a few ESS9018 knocking around and none of them look better and most worse than the TP. some look pretty horrible with 317 regs which given how sensitive the 9018 is said to be to PSU can't be a good idea. just a thought ;D I'm not saying that the Buffalo is the best DAC in the world but for the price. it's outstanding. ''Jplayer mini is a joke, but then, years ago with turntables, people use to clean record, stylus, and a variety of other things just to play a record, each time, and to play the other side too.......'' hey I'm one of those people and TBH i don't mind a little extra work if it improves the sound. Allan i meant to ask you talked about deriving I2S directly from a sound card and teleporting. if you have a discussion link for that I'd be interested in having a read up on that. sounds interesting but it brings back the thorny old issue of PSU quality maybe. sorry for the OT drift take care
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Post by Deleted on Nov 19, 2012 20:57:37 GMT
Allan The old Marantz CD65 had at least 3 additional voltage regulators IIRC. One was changed to a 7818 to supply the next stage. And yes, another regulator was fitted for the digital area too.Add to that the TDA1541s "ladder" capacitors replaced by matched through hole types for better low level linearity. The analogue opamps originally used just 47ohm (?) dropping resistors and an electro at the I.C. PSU pins. 78L15 and 79L15 were used to replace the simple series resistors.Even the original opamps were replaced by special plug in PCBs with AD8065 and a discrete version of the LH0002 I.C. as a low Z buffer stage. So there ! See , I'm not quite senile yet! Regards Alex
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pagan
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Post by pagan on Nov 19, 2012 22:40:38 GMT
Shaun Tp looked at a lot of forums to see what mods where working and also Dustin had input too.
I2s out of a soundcard shouldn't be too hard, just a matter of finding a suitable donor. Any card with the cmedia chipsets have i2s, intact most dac's use i2s data in. Picking off the signals is the hard part, very small tracks.
I did find an azuentech card with supposably i2s pins for output, Have not received a reply from them yet.
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Deleted
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Post by Deleted on Nov 19, 2012 23:21:02 GMT
Shaun Tp looked at a lot of forums to see what mods where working and also Dustin had input too. I2s out of a soundcard shouldn't be too hard, just a matter of finding a suitable donor. Any card with the cmedia chipsets have i2s, intact most dac's use i2s data in. Picking off the signals is the hard part, very small tracks. I did find an azuentech card with supposably i2s pins for output, Have not received a reply from them yet. Hi Allan sorry just me being lazy and fishing for links I'll have a google around and see what i can find. I've not heard I2S done that way so it may be interesting to try out. picking off the signal sounds like fun to me and a useful thing to learn. TBH I'd not thought of using the teleporter that way but i can't see a reason why it won't be good. something to think on anyway. take care
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pagan
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Post by pagan on Nov 20, 2012 1:21:30 GMT
Shaun That's the reason I got the teleporter, to bypass spdif out of the music Pc's sound card.
I havn't seen much mention of it either. Strange, seems logical to me, but then that's me.
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Post by Deleted on Nov 20, 2012 8:49:04 GMT
''That's the reason I got the teleporter, to bypass spdif out of the music Pc's sound card'' Hi Allan yup me to I've never really been totally convinced by the SQ i was getting from my sound card with SPDIF out. only one exception to that was Johns lovely hiface which as i say was in a class of it's own. but that's just a personal opinion based on what i was getting from my set up. take care
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Post by Deleted on Nov 20, 2012 9:16:55 GMT
Hi Shaun What soundcard were you using ? That hasn't been my experience with an Asus Xonar D2X or David2vk's Asus Essence.I doubt that Allan noticed too much wrong with the Essemce route into my SC DAC at our recent GTGs, or through my PC using the D2X and X-DAC V3 which uses decent SPDIF transformers. We have tried other ways including Steve Nugent's OffRamp, Benchmark DAC , PWT etc. It comes down to how good the DAC itself is at rejecting Jitter. Regards Alex
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Post by Deleted on Nov 20, 2012 9:54:02 GMT
Hi Shaun What soundcard were you using ? That hasn't been my experience with an Asus Xonar D2X or David2vk's Asus Essence.I doubt that Allan noticed too much wrong with the Essemce route into my SC DAC at our recent GTGs, or through my PC using the D2X and X-DAC V3 which uses decent SPDIF transformers. We have tried other ways including Steve Nugent's OffRamp, Benchmark DAC , PWT etc. It comes down to how good the DAC itself is at rejecting Jitter. Regards Alex Hi Alex Asus xonar DS just an opinion and by no means a statement of fact. i think the 9023 is pretty OK at rejecting jitter from what i've read. so just some more thoughts and another way of doing things and the more ways the better IMHO take care
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Post by Deleted on Nov 20, 2012 10:15:49 GMT
Hi Shaun Does that one have the additional small molex floppy drive power connector ? If not, it may come down to the separate power feeds for the card. IIRC, Dave K fed that connector cleaner power from a JLH and noticed a further improvement. Alex. P.S. No, your card doesn't, and as usual the difference is likely to come down to the cleaner power when separate power feeds are used.
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Post by Deleted on Nov 20, 2012 22:05:51 GMT
Hi Shaun Does that one have the additional small molex floppy drive power connector ? If not, it may come down to the separate power feeds for the card. IIRC, Dave K fed that connector cleaner power from a JLH and noticed a further improvement. Alex. P.S. No, your card doesn't, and as usual the difference is likely to come down to the cleaner power when separate power feeds are used. Hi Alex i think you may be right and as far as i remember it did not have the Molex but TBH i gave it away some time ago. I'm perfectly willing to accept that what i heard was PSU related but i had no way of checking when i had the board so don't know for sure. what i do know is that i much preferred the Johns Hiface to the SPDIF on the DS which made me interested in USB as an OP. and i can only go on what i know and hear for myself and make choices based on that. i can honestly say that with a little attention to PSU and cable length IMH USB sounds right to me. sure it has it's problems but what format has none? i switched to USB and have never once regretted the move. for me it seems much easier to make the right sort of interventions to get the SQ I'm looking for. the really nice thing about PC is the number of ways of doing the same thing. all good and all worth trying take care
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Post by Deleted on Nov 20, 2012 22:41:19 GMT
Hi Shaun I also had a DS which is a very stripped down version of the D2X and lower S/N . It is now in my son's PC. Having heard a lot of other gear at the regular listening sessions including the PWT, W4s, Steve Nugent OffRamp, Benchmark USB DAC, Oppo 95', Allan's B3 , PerfectWave Transport,S.C. Crystal DAC etc. through David2vks system. I have yet to hear one that beats the combo of SPDIF Out from David's Xonar Essence into my SC DAC from a Corsair Voyager using a +5V JLH PSU, and the difference between the Corsair directly plugged in, and using the JLH PSU is glaringly obvious, just as it is when plugged into the Oppo 95's USB port vs. first plugged into the JLH PSU... I think you will find that this is also the general consensus of the others present at the various listening sessions too. I don't doubt that if a lot of care is taken in the USB area that it can also work very well,otherwise I wouldn't have developed the +5V JLH PSU. However, I doubt that too many have heard well implemented SPDIF without the need for JK HiFace's etc. to make coax SPDIF work well.There appears to be a general trend in various forums towards dismissing capabilities of coax SPDIF in favour of USB with it's litany of problems, including many laptops needing to run off battery for best results. Neither should you need to spend 100s of dollars on devices like the SOtM PCI-E USB card to help overcome well known USB PSU problems. Another problem arises when you may wish to play music stored on a USB device such as the Corsairs with Linear PSU into a USB audio source. The advice from people like Gordon Rankin , who is the "father"of async USB is not to use 2 of the same type of format such as USB, and perhaps use something like Firewire for one of them. If Allan can demo his gear to me when completed, and it equals or betters my present coax SPDIF route, I willl quickly join in with you guys , as I am not one to settle for 2nd best when it comes to DIYAudio. (Provided it's affordable. ) Kind Regards Alex
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Post by Deleted on Nov 20, 2012 23:14:34 GMT
Hi Alex I've noticed my tendency to ramble on and go OT so sorry to Ian and JKDAC readers. I've started a new thread to discuss the above so if you would agree to move the above there we can chat without feeling guilty. take care
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Post by Deleted on Nov 20, 2012 23:42:11 GMT
Hi Alex I've noticed my tendency to ramble on and go OT so sorry to Ian and JKDAC readers. I've started a new thread to discuss the above so if you would agree to move the above there we can chat without feeling guilty. take care Hi Shaun Like I said to Javier, if you can move SPAM to somewhere else, then feel free to move posts to other more appropiate, or new threads, Kind Regards Alex
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oldson
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Post by oldson on Jan 6, 2013 18:18:39 GMT
can these battery powered dacs be left plugged into usb/charging while in use, and does this induce any nasties?
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jkeny
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Post by jkeny on Jan 6, 2013 22:21:30 GMT
can these battery powered dacs be left plugged into usb/charging while in use, and does this induce any nasties? Yes, plugged in & charging while playing with no audible detriment to the sound.
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