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News: Dec. 31, 2012 : XXHighEnd + Phasure NOS1 DAC receive 6moons Blue Moon Award !
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1  Ultimate Audio Playback / Chatter and forum related stuff / Re: Cables with BNC Connectors/Adapters Are Generating A Superoir SQ on: October 13, 2014, 07:20:34 pm
Hi Juan,

I've used Adaptors like these for digital connection from a source to a D/A converter, but I would be extremely hesitant to use any kind of coupling transformer on the pristine analog outputs of the NOS1. I was using an electronic crossover with very high grade Jensen transformers on the inputs and it definitely took the life out of the sound of the NOS1.
BTW, I am currently running standard BNC to XLR with the 50 ohm cables on my low frequency amps and like what I'm hearing.
I have modified the inputs on my midrange/tweeter amps with 50ohm BNC inputs but still connecting my 50ohm BNC cable using 50ohm BNC to RCA Adaptors on the NOS1a outputs and it has been truly transformative to the sound quality compared to the balanced cabling I was using.

Todd
2  Ultimate Audio Playback / Chatter and forum related stuff / Re: Cables with BNC Connectors/Adapters Are Generating A Superoir SQ on: September 10, 2014, 02:20:46 am
So what about those of us who are fully balanced? Are there any lessons here that can be applied to XLR?
3  Ultimate Audio Playback / Phasure NOS1 DAC / Re: First impression of the NOS1a (and Orelo) on: August 31, 2014, 08:16:40 pm
Sorry I didn't resize the photo properly, my first time trying to attach one...

4  Ultimate Audio Playback / Phasure NOS1 DAC / Re: First impression of the NOS1a (and Orelo) on: August 31, 2014, 08:13:47 pm
Hi Paul,

Congratulations on your upcoming Orelinos! It will be nice to hear the impressions of someone who has never been a horn guy Happy

Regarding the Dexa clocks, my NOS1@ is a completely unadulterated model. No BG caps, no Dexa clock. Many thanks to Peter for absorbing most of the cost of returning it to stock.(I had removed all modifications to the USB board before sending it back for the "a" upgrade) I can not understate my appreciation to Peter for all he did and has done for me.

I do still use a Dexa clock and power supply on my PC USB3 board. Where I think it's quality is superior to a stock board and two different audiophile USB PCIe boards that I own and tried.

However, I think it's use in the NOS1a is ill advised. Peter's power supplies in all sections of the NOS1a have ripple factors much lower than anything out there, and I believe that synergy of all of his components are crucial to the low jitter and low noise that the NOS1a exhibits.

I've come to understand that without the quality test equipment, the engineering prowess and indeed the "outside the box" thinking that Peter possesses, I cannot possibly trust my judgement(or lack there of) in making modifications to the NOS1a

And at this point, given that you will have the Orlino's, another reunion with Mani might be in order for a subjective comparison Happy

Below is the right channel of my system. Kind of hard to see with the lighting, but the 8-12" Peerless XLS drivers are housed in a "W" shaped folded baffle open to the front and rear, behind the beautiful Brazilian Rosewood sides. The folding is just to make the system more compact and is equalized in the electronic crossover. They cover from 70Hz down 18Hz.

I'd love to hear what 2 Orelinos horns would do in place of the Scanspeak 8s and tweeters, since the cover from 260hz and up Wink

Again, can't wait to here your impressions of your new Orelinos once you get them!

Cheers,
Todd

5  Ultimate Audio Playback / Phasure NOS1 DAC / Re: First impression of the NOS1a (and Orelo) on: July 04, 2014, 05:45:18 pm
So I was one of the very fortunate early upgraders to the new NOS1a. We have all read some of the great initial impressions of the NOS1a, however, many of them have been with dramatic changes to the poster's other equipment (Iíd love to hear itís performance in those systems) What I will unequivocally point out is that with the level of performance Peter has achieved with the NOS1a we all will be evaluating any other weaknesses in our systems.

Since I havenít posted my equipment list in my signature, I thought I would put it here to give everyone an idea of what I am listening to. The PC is very similar to Peterís spec unit but in a full size case and with linear power on all voltage rails for the PC (not that this matters anymore with the NOS1a Happy, the NOS1a balanced outputs drive bridged Ncore 400ís, so two NC400 modules bridged on left channel and two on right channel connected to custom passive crossovers for the dipole midrange and tweeters of the Audio Artistry Beethoven Grands.(Normally these would be driven through the Beethovenís electronic x-over, but that was affecting the resolution of the NOS1.) I have a separate set of balanced outputs off a XLR Y-cable feeding the electronic x-over which feeds two more NC400ís per channel driving the mid-bass and subwoofer drivers. (for reference, there are a total of 8 ScanSpeak 10Ē drivers in the main panels and 16 Peerless XLR long throw 12Ē drivers in separate folded baffles, these are all open baffles. The total surface area is almost three times that of the Orelo MKIIís 6-15Ē drivers, so very low excursion and distortion for a lot of output)
Also, now knowing Peterís analysis of the Ncore amps, it is very possible that I will audition new mid/tweeter amps to be able to fully realize the potential of the NOS1aís resolution Wink

Ok, so back to the real reason for this post, the sound quality. Hard to put in words, from the moment I started playing it my mouth was just wide open in astonishment! Well truthfully, I had some phase issues from stupid wiring mistakes; (I forgot that the high output of Butterworth x-overs must have the phase inverted. Oh yeah and double check the wires of your XLR cable assembly before soldering them, duh.)  I hope Peter forgives me for initially implying that perhaps in final assembly one of the channels of the NOS1a was wired out of phase Happy

So once I corrected my wiring, what I heard was the most natural but detailed sound that I have ever heard. The music just flowed as one complete unit, I wasnít just drawn to one aspect, and everything was in perfect balance but with so much more information! I found myself literally overjoyed with emotion at what I was experiencing. And I have never heard such a precise soundstage, both from left to right and front to back. All the performers were firmly grounded in the actual positions in which they were recorded! Everything was in proper scale. I told Peter in an email that I could see one performer turning to the other during their interaction on stage; well I thought I could see it, but I literally could hear the change in where the performerís voice was directed!

I could go on and on and I assure you this is not hyperbole. I obviously donít post a lot Shocked, so Iím maybe not the best at pointing out specific things, but that is the wonderful thing about the NOS1a, everything is now presented as a whole so no more nitpicking this or that. It is all just so right!

For any of us that have been on this journey with the NOS1 and all the iterations of XXHighend, we have all listened to our music library like it was completely new. Re-exploring albums that we were familiar with and hearing them as if they were completely new re-masters. Well I assure you, if you get the NOS1a upgrade you will be doing that all over again, and donít be surprised if youíre listening to genres of music that normally arenít your cup of tea because theyí re viewed through a completely different lens!

Oh, and one other thing, it was Mani now years ago that posted his observations on another forum, saying how much he preferred the NOS1 to his Pacific Microsonics 2. He said to beg, borrow or steal to get your hands on a NOS1. So I did and never looked back. I would say that applies tenfold to the NOS1a! You know it sucks paying $600 in shipping to get something sent and returned from the States to the Netherlands, but I really would not hesitate to pay twice the upgrade cost after hearing the NOS1a!

Not to fuel any fires, but if I were way down the upgrade list, I would pay someone higher up a healthy premium to exchange spots just to get it sooner Wink
6  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: A superoir SQ of the NOS1 with 8x AP only! on: May 07, 2014, 08:51:21 pm
So I've been using 8x only for about 2 weeks, with sporadic listening sessions but enough cumulative time to form some opinion compared to 16x.

I find it more resolving but very relaxed and easy to enjoy without trying to sit there and analytically figure out the difference.

When an artist is singing softly there is a delicacy and naturalness to their voice and as the sound decays to nothing I feel like I hear every last molecule of air leaving their mouth. And when they sing loudly, I never feel like they are shouting unless they really are. I'd say it is more dynamic and fast without a hint of breakup or struggle, really nice, really natural.

The same air movement thing applies to horns and with stringed instruments I hear more of the vibration of the strings and a more natural resonance of the instrument.

In my musical selections thus far, I have not heard any exaggeration of the scale of the performer, instruments or soundstage.

I have not felt the need to return to 16x and when I've tried it, I prefer 8x, but if I had never tried it, I would still be loving 16x and really couldn't find fault with it.

Glad someone tried this because I never would have thought to. Who knows what comes next, but for now I think stick with it.

Todd



7  Ultimate Audio Playback / XXHighEnd Support / Re: 1.186a Won't minimize in W7 on: February 10, 2014, 05:07:15 pm
Thanks Peter!

But I may have done something stupid. You can let me know if I'm a bonehead or not:)

So originally, like I said in my first post, I copied over 1.186a from the W8 partition to the W7 partition. At that point I just opened it up in the Ram drive A as I do under W8, of course directing the script appropriately. I never ran install under W7.

 Then I did have to get a new activation code, which you refunded.(It activated fine with the new code, just wouldn't minimize) So I do have a separate code for 1.186 in W7 & W8

So I'm not sure if my whole process may have been screwed up by not actually installing it under W7?
8  Ultimate Audio Playback / XXHighEnd Support / 1.186a Won't minimize in W7 on: February 10, 2014, 03:54:31 pm
So like most everyone else here, I wanted to get a first hand perspective of 1.186 in W7 & try the new bios and XT Tweek settings. I copied 1.186a over from my W8 partition on the same hard drive and re activated it. So no hiccups there. Plays fine in unattended, etc. However, even with Don't use XT- tweaks selected, when I try to minimize, I get and error box pop up that says," unable to boot into minimized mode you may need to contact Phasure for assistance.

I ran through every option I could think of, even uninstalling 1.186a and reinstalling and re-activating it but no luck. Not sure if this has anything to do with it being minimized in W8 on the other partition, but I don't get the usual error message stating that the minimized state is not reflected properly.

The only other thing I thought of and have yet to try is: starting a prior activated version under W7 and checking if it still shows minimized there.

Thanks for any suggestions,
Todd
9  Ultimate Audio Playback / Playback Tweaks and Source related subjects / Re: USB to PC chassis ground ? (noise) - The biggest change ever ! on: January 25, 2014, 12:41:49 am
Well, I was kind of on the right track with isolating the equipment from the floor resonance with an inner tube. Just not quite crazy enough to think of floating that inner tube in a pool of water!!! In all my years going to CES in Las Vegas, I have never seen such a thing! Crazy & Genuis are sometimes not to far apart drinks
10  Ultimate Audio Playback / Playback Tweaks and Source related subjects / Re: USB to PC chassis ground ? (noise) - The biggest change ever ! on: January 24, 2014, 09:35:23 pm
Paul,

I ascertained the same thing about a week ago, reading .1ohms from the card screw holes to the PC casing without the bracket even on the PCIE card. Also, no noticeable change in sound either.

11  Ultimate Audio Playback / Playback Tweaks and Source related subjects / Re: USB to PC chassis ground ? (noise) - The biggest change ever ! on: January 24, 2014, 08:18:32 pm
Kind of hard to tell in the picture, but is there tape around the USB cable shield where it plugs into the adapter?
12  Ultimate Audio Playback / Playback Tweaks and Source related subjects / Re: USB to PC chassis ground ? (noise) - The biggest change ever ! on: January 24, 2014, 05:38:05 pm
I would guess that you are isolating both the NOS1 & the PC from the floor resonance. Maybe using an inner tube under the PC with a specific amount of air for compliance. Happy I know, however, that this is not a new idea. Thought I'd throw it out there just to further the discussion.
13  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: SQ of 1.186, best ever! (Again) on: January 02, 2014, 06:23:51 pm
So one of my New Years resolutions is to finally start contributing to this community that has given me so much!(With a little encouragement from Paul to not worry about occasionally sticking my foot in my mouth Happy )

Peter, you have really outdone yourself with this new release. Not only is the resolution much greater but the proper scale of the performers and their instruments is dead on and so perfectly grounded in whatever venue the recording was made. So much greater texture and true sense of the width and depth of the soundstage with the better delineation of the vocals or instruments initial tone and the accompanying reverb and decay of the venue. And never have I heard recorded music portrayed with such accurate percussive attack! Blazingly fast and real!

I also must mention what a great job you've done with fixing so many of the little bugs, etc. that just lend itself to a more enjoyable listening session.
It truly is a very Happy New Year! Thank You!
14  Ultimate Audio Playback / XXHighEnd Support / Re: Wanted : 20 Beta Testers on: July 28, 2012, 09:12:48 pm
  I'd be glad to help out. I just feel bad because I've gotten so much help from everyone's dialogue on the site and I have yet to contribute.
  I've really been trying sort out some gremlins, such as bypassing input transformers on some of my electronics that the NOS1 made so obvious, that I didn't want to give my opinions on what I was hearing.
  And again to all of you that have helped exponentially improve my listening experience by your posts, I could never thank you enough.            Well, we know none of this would ever be possible without Peter so I never take that for granted!!!

 Todd

15  Ultimate Audio Playback / Music Storage and convenient playback / Re: Due Remote features : URGENT QUESTION to all ! on: May 27, 2012, 02:32:34 am
Hi Peter,

I'm definitely on-board for this.

Thanks,

Todd
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