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241  Ultimate Audio Playback / XXHighEnd Support / Re: Albums pausing on: April 27, 2016, 11:16:10 am
Well, maybe you can find back the topic yourself, but what I recall is that we were dealing with this in this forum, unless it was someone else. Anyway, your system will have limits, depicted by the whole.
Do you still have that other PC around ? if so, it could be a good idea to try that with the same settings. That's at least a reference for me myself ... (dunno what to do with that yet, but it's better than thinking that your system is not on par).

Also, when you'd set all like you see in my sig, the sound may not be what you want, but at least that works so it could be a nice test. Btw, I play with 0.06 lately but this could be because of further improvements since 2.05. Otherwise 0.11 will work (if all is right).

Let me know ! (or ask etc.)
Peter

I do have the other pc and it does the same things, but I will put it in play tomorrow to see because it has not been used in a while.  As far as I know the XXHE settings on both AudioPC's are exactly the same as in your signature.

Most albums play fine at 0.05 for me...but some of them don't.
242  Ultimate Audio Playback / XXHighEnd Support / Re: Albums pausing on: April 27, 2016, 09:40:14 am
Hi Anthony,

Since when is this happening ? (time / situation)

Peter

I think it has always been happening with 2.05 in some way.  Before I sorted out the correct setting for "Balanced Load" and/or "Nervous Rate" (I cannot remember exactly which setting I had wrong, but when it was changed to the current values in my sig it was like I had a whole new XXHE) those same tracks that used to stutter at their start now just pause, or at least that is how it seems to me, I might be wrong.  It is the same albums misbehaving.
243  Ultimate Audio Playback / XXHighEnd Support / Albums pausing on: April 27, 2016, 09:19:31 am
Hi Peter,

I have a recurring situation where some albums will stop playing part way through the playlist.  This happens on both hi-res and redbook.  XXHE may get through say three songs and then fail to start the fourth.  The fix is easy, I just go to click Alt-P on the shortcuts menu and the next song usually starts up.  After that sometimes the rest of the album will play out and sometimes XXHE will get stuck on another song or songs.  All tracks are played (eventually) and none are missed during the stop starting.

It ALWAYS happens on the same albums and for the same tracks in those albums.  For example, if I start playback from Track 1 and it pauses after playing Track 4, I can duplicate it by restarting playback from Track 4 (or Track 3 or Track 2 for that matter) and I will still get the "pause" even though the previous tracks have not been played this time.

Changing SFS to a high value (greater than 2) does seem to change the behaviour of the albums, but considering most will play happily at 0.10 or even 0.05 I am hoping for another solution.

Any thoughts?

Regards,

Anthony

244  Ultimate Audio Playback / XXHighEnd Support / Re: Is there a way to prevent a playlist from repeating? on: April 22, 2016, 10:51:56 pm
I don't have the "playlist repeating automatically" problem, but sometimes the "Play" button is still activated after the playlist is finished and XXHE has come back up from unattended.  I just click the "Stop" button even though no music is still playing.

XXHE has been doing this for a couple of years and I have never seen it as a problem in itself even though it usually happens after XXHE fails to play the entire playlist and finishes early, but sometimes it happens after playing the entire playlist as well.
245  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: How to install Tidal in the Music Server Pc on: April 12, 2016, 10:48:29 pm
Juan, very very good !

Now that you have confidence, maybe Anthony likes to explain how he got 2.05 over from the RAM OS Disk (I am pretty sure he did that and thus managed).

I did link Juan to your instructions to do so earlier in the this thread.  Here they are...

Quote
Hi Anthony,

2.05 is not for the public. It is on your RAM-OS disk though ...

What you can do is zip the XX folder (only that is fine, but include its sub folders) from any of the OSes (take the one you have been using), and move that to your other PC like a normal "install". It will require activation as usual.
BUT to mimic the normal install, start XXHighEnd in that other PC and go to settings and the Save As button, close to the top. RIGHTclick that to reset all.
If you don't do that, the install will not be normal and we will be spending a dozen of posts to make it normal. I myself can't do it either (I try some times Happy).

Regards,
Peter

That is exactly what I did to get 2.05 working and it worked first time!

Cheers,

Anthony
246  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: How to install Tidal in the Music Server Pc on: April 11, 2016, 10:45:10 am
Thanks Alain and Anthony, I have a few questions.
In my Music Server Pc l'm not using Ram disk, yes in my Audio Pc. I'm trying to install XXHE in the Music Server Pc disconnected from the Audio Pc and connecting directly the Music Server Pc to the NOS1. Am I doing it correctly this way? When I have to register  with Tidal in XXHE?, I have not Activated yet XXHE and I can't see the window asking to register with Tidal. What about the updates in the W10 I have in the Music Server Pc? as I have it connected to Internet  it is updated and it was difficult to install XXHE, not sure though if it has something to do with it.

Regards,
Juan

Juan,

The Music Server never has to be connected to the NOS1...only the AudioPC is connected when you want to play music.  For best results the Music Server should have a direct ethernet connection to the AudioPC so the chain looks as follows...

Music Server >> ethernet cable >> AudioPC >> Clairixa >> Intona >> Clairixa >> NOS1a.

If you plan to run everything from a tablet such as an iPad then the Music Server will need to be connected to your network which means that you will probably need a second ethernet port on your Music Server so the AudioPC is kept separate from the rest of the network.

Just to be clear, the Music Server does not need to have XXHE configured to play music or even connect to a dac.  We just want to run Remote Desktop and XXHE (for Tidal only), so W10 updates won't matter at all to SQ or anything else.

From where you are, I would activate XXHE (but not worry about setting up a dac driver or anything like that), make sure you have a direct ethernet connection between the two PC's, and then bother with the Tidal stuff last of all.  The network stuff may be a little tricky to get setup properly.

Cheers,

Anthony
247  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: How to install Tidal in the Music Server Pc on: April 10, 2016, 11:19:25 pm
Is it truly so important to have a really fast Internet? I understood that in some way it's possible to store the downloaded files to be played in a later moment.

Thank you
Juan



I had internet that frequently dropped out...right out...and Tidal was dropping songs as a result. 

Regarding which version of XXHE, if you use RAM-OS you can use 2.05 by following the instructions Peter gives here.

Cheers,

Anthony
248  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: How to install Tidal in the Music Server Pc on: April 10, 2016, 10:16:50 am
Hi Peter,

Iīm trying to install Tidal but although I read the Tutorials I canīt find the previous steps in case I need to install XXHighEnd in the Music Server Pc. I remember reading something before about that it is necessary to buy a new license (to be refunded) but I canīt find it and how to proceed later once XXHE is installed to login to Tidal.

Regards,
Juan

Juan,

If you go into "Getting Started and Further Tutorials" and have a look down near the bottom at "Streaming Services" I believe that you will find the information that you seek.

So you just instal XXHE on your Music Server computer as normal, get it activated, but don't necessarily set it up to play music if you don't want to.  Then you login into Tidal as Peter describes in one of those tutorials and it should all work as intended.  Be careful to set the locations of the Tidal Temp and Streaming folders in XXHE setting of both the Music Server and AudioPC so that they are both looking at the same directories.

Since I finally got fast internet a week ago I am using Tidal daily and it is really a much loved part of XXHE for me now.  Before when the internet was flakey....not so much fun...but that is the internet not XXHE.

Hope this helps.

Cheers,

Anthony
249  Ultimate Audio Playback / Phasure NOS1 DAC / Re: The cheapest upgrade : B'ASS on: April 08, 2016, 01:34:54 pm

So the B'ASS provides more current.  You mention if it adds too much, the sound can actually degrade.  My question is whether the "ideal amount" changes depending on the input impedance of the users amp.

For example, it sounds like your (Peters) amps have 47K ohm input impedance.  My current amps are a little lower, around 20K input impedance.  Would I possibly need to "flip the switch" for double the current?

Matt

Excellent question.  In my situation the B'ass will be driving 6 channel valve amplifiers with passive line level crossovers in front, so really it will be driving the electronic filters which I imagine will be quite a variable impedance load for the B'ass perhaps as low as 5k.
250  Ultimate Audio Playback / Phasure NOS1 DAC / Re: The cheapest upgrade : B'ASS on: April 04, 2016, 12:44:13 pm
It would be end to end 2x mono, although at this moment I doubt whether this is the best to do. So FYI, you might think this works nicely but it thus assumes no common ground anywhere between the two channels of which you are not going to tell me that this stays separate at the other (poweramp) end. Then what ? I feel this brings misery only and my feelings are often correct.


Peter, I am not exactly sure what you mean here.  In my situation, and I believe in yours as well with the Orelo's, the amplifiers for left channel are completely separate to the amplifiers for the right channel...true monoblocs...although they are in your case 4 amps per side and in my case six.  The only common ground between them is via the main socket into which they are plugged.

Or do you mean that this is setting things up for a nice big ground loop?

Anthony

PS:  Wow...you are already going on the Muses chip!  I feel quite guilty that I have caused all this extra work for you now...and I do apologise...but I also know that you would not be investigating this without consideration of its potential merit.  If you get a good result I think it will probably be a more saleable product especially to those not in the Phasure ecosystem.  Are you thinking of actually having two products if it works out?  For example B'Ass and B'Ass VC.
251  Ultimate Audio Playback / Phasure NOS1 DAC / Re: The cheapest upgrade : B'ASS on: April 04, 2016, 06:40:26 am
Quote
so we have an opportunity for the best possible results from a passive attenuator if it is jammed in nice and snug before the unity gain stage.

Anthony, I'd say this is correct. Anyway during reading your text onwards to this sentence I was thinking "but no problem in this case".
This doesn't tell it really is no problem - only that the short run of length can be in order. Mind you (please) outside of the PCB's now present. So exactly as you just said.

Peter

Well I hope it can work well Peter...I really do.  Thanks for even considering the VC as an option.
252  Ultimate Audio Playback / Phasure NOS1 DAC / Re: The cheapest upgrade : B'ASS on: April 03, 2016, 01:11:24 pm
Anthony, I hope one of your ideas is left; I only mention these to be ahead of things instead of nagging afterwards.
And (Matt) never ever hunt hear-says. First investigate the leage you're in and in what leage that "shouting" is. It can be really fine, but always needs thorough investigation.

Regards,
Peter

Well, two of my ideas are still left.  I had thought of the auto former (Intact Audio would be my choice) but I would have needed convincing that its varying output impedance, non-constant resistance and the tendency of magnetics for inductance for LF changing to capacitance for HF could work in this situation.  That would have been a long shot I reckon.

The problem with any passive attenuator is that it is basically a voltage divider, whether that be discrete resistor based on a switch or relays, LDR type, or magnetics.  They all act as high pass filters and LF suffers plus they are incapable of driving any length of cable or wire. For them to work best they should be used right before the gain stage with as little pcb trace or wire following them as possible...think in centimetres rather than metres. What is the B'ass?  My understanding is that it is a gain stage or an active buffer to my way of thinking, so we have an opportunity for the best possible results from a passive attenuator if it is jammed in nice and snug before the unity gain stage.

How would I do a passive attenuator in this position?  Well, I would use sealed relays rather than switch.  These relays would of course be powered from a completely separate power source.  On top of this, this power source would only be active when the volume is being changed...for the moment of changing a relay...then shut down.  I would use Vishay VAR precision trimmed resistors and have an attenuator step of about 1.5dB just like XXHE, plus a mute function.  Note that as far as I am aware this is not like the Tent Labs attenuator (I admit that I did not look at it too hard) that you linked to Peter, and I am not sure how you used that device when you tried it, but it may well work differently immediately before the gain stage in the B'ass.  That is impossible for me to find out.

My other, and prefered option is the Muses 72320 chip.  Have you noticed them before Peter?  They also make some very good  opamps by all accounts.

Regards,

Anthony

253  Ultimate Audio Playback / Phasure NOS1 DAC / Re: The cheapest upgrade : B'ASS on: April 03, 2016, 10:35:03 am
Peter,

I will send you an email with the attenuators that I am contemplating.  There are three that I would try at this stage...depending on how they would be used.

Cheers,

Anthony

PS:  Thanks for even humouring me with this stuff...it is very much appreciated!


PS: Don't complain that the case will get larger. 1eye


hahaha...no I will not complain.
254  Ultimate Audio Playback / Phasure NOS1 DAC / Re: The cheapest upgrade : B'ASS - Box description on: April 03, 2016, 09:13:31 am
Don't worry about the vinyl.  I am more concerned with other analogue inputs such as an FM tuner et cetera.  It would be nice to (still) not have a preamplifier but to be able to use your active buffer for more than one input.  So if I was listening to some music through my DAC and then wanted to tune into a live FM concert it could be done without changing cables and all that associated messing about.

I could sort out a remote volume control whether that be a high end passive attenuator or something with the Muse chip and then I would have the flexibility I need in that department.

Reading between the lines above it seems as though you don't think more than one input could work optimally for SQ...is this true?

Anthony, not explicitly. You guys just come up with more than I planned for this.

Sorry Peter...I hope you understand that I am just asking for what will suit my situation...and that this seems to be the time to do it.  If I can get the basis for a two input - one output B'Ass with or without volume control I can modify it to suit my purposes...but a single input B'Ass does not work for me because I want to listen to FM as well as my NOS1.



Example about the volume : If you ask me I say "undoable". I mean, if it is not allowed to be detrimental to SQ, forget it.
However, the NOS2 design solved that, with weeks of design. Think voltage references and the output responding to that because of the design itself (which explicitly took that into account). This does not do that.
And on a side note and FYI : applying any volume in the differential domain is a challenge in itself, because there should be no deviation between the two differential channels at all (while L/R is easliy allowed to deviate 0.5dB (I say !)). So with differential any volume control is almost a no-go, unless we step back 10 years (of say Phasure) and don't know much about anything BUT that our sound is not the best of the world. Understand ?


I think I understand your position.  I also think that I can get a good sounding passive or active volume control sorted for myself if you are not willing to do it, so that is not an end game.  But two inputs for the B'ass would be so, so convenient in my situation...



This is also how I claim to have learned so much from the NOS2 project, never mind no NOS2 is there. I can tell right now within seconds all the things which will *not* work. But behind such seconds is weeks of thinking ...

All what is "switch" will be too high-Ohmic and therefore no good in the input. One thing I am not so very much experienced with : we are already at a reasonable (line) level. So it is not in advance of a DAC where nothing is allowed regarding switches and such. Anyway, what I would allow for almost sure is just two inputs in parallel. Maybe this is harmful, maybe it is already world-wide known that this is not allowed, but without examining it, I say it may be OK.


Two input would be fantastic...two BNC and I could change the output of the FM Tuner to BNC also.



You know, I am afraid that we are "designing" ourselves more than really necessary, and that any 700 euro device as of now, becomes 1200 euros. Maybe that's OK, but ...

1200 euros works just fine for me.  A used version of the active buffer I am searching for (they seem very rare used) will go for more than that, and it does just the same thing as your B'Ass box...current...but with multiple inputs and a fantastic passive attenuator.



But anyway I now realize that I also have a digitally controlled volume ready on a PCB (f*ck, what did I not do the past 4 years ?!?). It is only that I never really worked with it (so I have the PCB and that is all -it also requires uC programming). But I recall that this too was actually a bit too difficult and it requires some sort of calibration (the differential problem, described above).


That solution sounds excellent, if you can pull it off.



Hey, I am not against anything. But I had one purpose with it and this was just better sound from the NOS1(a). I think we now must be careful not to make it unnecessary expensive for some. But I listen ...


Much appreciated Peter.  Perhaps two versions:  one as you propose just for single analogue input systems;  a second unit for multiple analogue inputs, perhaps with remote volume control.



PS:
Quote
But anyway I now realize that I also have a digitally controlled volume ready on a PCB
... which was for the DSD board I also have and never even bought one resistor for. So tempt me and that is in the same box too. Especially because that is voltage output and requires a buffer.
Anything else ?
swoonswoonswoon

I can't think of anything else.
255  Ultimate Audio Playback / Phasure NOS1 DAC / Re: The cheapest upgrade : B'ASS on: April 03, 2016, 08:54:50 am
Oh, and I forgot to ask...is this buffer a dual mono configuration or do the two channels share the power supply?

Anthony,

It is shared. But this is only because I planned it like that.
From origine it all does not matter, as this springs from the 8ch design and the whole configuration is as flexible as can be (read : the number of channels serviced by a PSU really does not matter, as long as it can take it).

Please keep in mind that I am not into "audio idiocy" and that a PSU which can supply 7A or whatever it exactly is, is not going to be bothered by two channels requireing 0.000x whatever Watts.

Btw, the plus and minus can be regarded double mono (especially if I'd use separate trafo's instead of two secundaries from one ... but I don't).

Peter


Hi Peter,

My concern, whether founded or not, is more to do with the current for the left channel being sourced from the same power supply as the current for the right channel, and they being effectively "joined".  Whether that power supply can keep up or not is really beside the point (my point anyway), but the pre-amps and buffers that I have heard that I have liked have been dual mono designs from input to output...which may be a coincidence...but that is what I have liked.

Regards,

Anthony
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