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1  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: 2.10 sound quality on: January 16, 2019, 10:10:58 am
Btw, if possible for your DAC, try to use KS Special Mode. If it works without ticks or buffer errors, it is "the best" (sadly not possible for NOS1 users).

like never possible?
 Cry

When fiddling with the settings and ignoring the ticks (for a short time) running in KS Special mode produced the best sound I ever had. I guess we have to enjoy superb yet imperfect sound forever....

regards, Coen
2  Ultimate Audio Playback / Cables (Community induced) / Etn^2 squared? on: October 25, 2018, 04:31:55 pm
While the 360 revolution is upon us I noticed an absence of attention towards the “unimportant” ethernet connection between music server and player.

Now this cable may not carry a lot or any signal while playing, it is a medium that can pick up and conduct undesirable electromagnetic signals. Hence my conjecture that the benefits or effects of the 360 shielding trick might very well apply to the ethernet cables as well.

I do not have the stuff or time to pull such an experiment off. Has anyone done experiments with different ethernet cables and or shielding (like connecting an SFTP shield one way only)?

Cheers, Coen
3  Ultimate Audio Playback / XXHighEnd PC / Re: Phasure Mach III Audio PC with Linear Power Supply on: August 29, 2018, 08:53:06 am
Maybe a new slogan would be appropriate:

‘Mach III, the best a man can get!’

Regards, Coen
4  Ultimate Audio Playback / Your thoughts about the Sound Quality / Re: 2.10 sound quality on: March 29, 2018, 11:10:32 pm
FWIW my first impression:

I think that the SQ with 2.10 with Peter’s settings is quite a boost up from what I was able to archieve with 2.09. This is genuinly the best sound I’ve ever had from my system. Everything seems to be in it’s right place.

As we all know this is ‘the early’ days and who know’s what more is hidden in the settings. BIOS has not been touched.

I do want not dare compare it to pre 2.09 versions since I’ve been working on the PC-DAC setup a lot and SQ benefitted significantly from that.


Regards, Coen
5  Ultimate Audio Playback / Phasure NOS1 DAC / Re: B'ASS Current Amplifier on: April 24, 2017, 12:14:07 pm
Hi Coen, I sent Reinhard Thöress (designer/manufacturer of my amps) the specs of my horns, and he recommended going for the 4 Ohm taps. I think he felt 109dB/W was plenty to be playing with, but perhaps I should have made it clear that the NOS1 output is slightly less than most other DACs. The taps are hard-wired inside the amps, though can be changed. So it's good to know that if I really need more gain, I could change to the 8 or 16 Ohm taps.

Thanks for pointing this out.

Mani.

Hi Mani,

You should definitely go for better matching of transformer and speaker. I had to insert Pault Spelz "Zeroformers" to get sufficient power for my 100dB+ 16 ohm baffles. These are quite versatile so I experimented a bit and learned that 6dB is a LOT of extra output especially since my "power" amp is so feeble in the first place (5ohm output tap). I was able to optimize the sound quality  by finding the best coupling.

These "Thöress" amps are very nice looking retro styled amps. I am pleased to hear they sound good too. Wich one do you have the 300B or 845? Their low sensitivity is part of the design philosophy so a preamp (that actually amplifies) is actually expected.

regards, Coen
6  Ultimate Audio Playback / Phasure NOS1 DAC / Re: B'ASS Current Amplifier on: April 23, 2017, 12:45:13 pm
Hi Mani,

Just to be sure: are you able to use the right transformer secondaries for the loudspeaker impedance? Between a 4 and a 16 ohms tap is a 6dB difference in output voltage level (3dB between 4-8 or 8-16).

Regards, Coen
7  Ultimate Audio Playback / Your questions about the PC -> DAC route / Re: Clairixa USB-cable - Listening impressions on: March 24, 2017, 11:53:30 pm
Has anybody tried putting the short Clairixa between Intona and Dac?

I've had it this way for the past 6 months or so. I prefer it.

Mani.

+1 (never tried it any other way, sounds goof enough for me)


regards, Coen
8  Ultimate Audio Playback / Playback Tweaks and Source related subjects / Re: Beware of the monitor power plug position on: March 21, 2017, 09:10:01 am
Have you tried using an RDC connection and taking the video card out of the audio PC? Assuming you can get a LAN cable to the audio PC, of course.

Hi Mani,

Not with the setup with the XXHE PC. With my old PC removing the SC was devastating to SQ, probably because in the background the on-chip GPU took over. As I understand the XXHE PC does not have a processor with an on board GPU (Xeon).

I will try this, hopefully the monitor will have less or no influence when connected to another PC...

regards, Coen
9  Ultimate Audio Playback / Playback Tweaks and Source related subjects / Beware of the monitor power plug position on: March 21, 2017, 12:28:27 am
Hi,

After a small interior-painter-audio-system-wintersleep I've got it in position again. And guess what? It sounded like total sh*t.
Anemic, foggy, sharp and lethally uninteresting.

I ran all the connections and system details, but they seemed identical to the situation before the paint job. I took foto's and all to be sure. Then I realized I had moved the monitor next to the PC since the KVM cable had some bad mouse and keyboard contacts. Of course this went along with a new power outlet.

Naturally I took a power search  screwdriver (the one with the orange neon light in it that glows on the hot pin) and voila an inconsistency: the light glowed opposite to the marking on the plug.
Flipping the plug did nothing short of spectacular good things for the sound. The life is back as are the individual instruments and their dynamics.

This is some 'detail'  to pay attention to and totally free to boot!

Now I would be lying if I said that the sound is the best I ever heard, that would take definitely a different and more capable amplifier and maybe some of Peter's new tweaks that are in the production pipeline.

regards, Coen
10  Ultimate Audio Playback / Playback Tweaks and Source related subjects / Phisolator and 6Moons Intona review on: February 09, 2017, 03:16:46 pm
There is a 6moons review of the intone USB isolator. The reviewer asks himself:

Quote

...Back to Intona, their original focus on industrial applications sidesteps the realm of imaginary diseases and their equally imaginary cures. Forget unscrupulous tech quacks who exploit our collective audiophile ignorance and real desire for better sound. The problem of noise contamination which migrates across the USB pipeline from our computers is very real. It can be measured. Whether that means you can hear it when that noise is removed; and whether you deem the improvement or change worth the associated expense... that's on a whole nutha page.

The thinking reader—hey, those do exist!—also wonders. Why is it that our audio designers at large seem incapable of building Intona-type solutions into their/our DACs? Why do we need external fixers? At what sell prices for D/A converters should we insist on total immunity to such aftermarket add-ons? It doesn't seem right that after years of USB Audio, our high-performance segment remains caught out as improvable by sub €500 USB isolators, reclockers and sundry doodads. Doesn't that make your blood boil?


Blood at normal temperatures in this place Grin!

regards, Coen
11  Ultimate Audio Playback / Phasure NOS1 DAC / Re: B'ASS Current Amplifier on: January 29, 2017, 11:15:15 pm
Hi Peter,

Even in 2017 you cannot treat production has an afterthought. That second industrial revolution still needs a lots of kicking in.

If green is better so be it. Looking forward to the upgrade!

regards, Coen
12  Ultimate Audio Playback / Phasure NOS1 DAC / Re: B'ASS Current Amplifier on: January 27, 2017, 11:28:33 pm
Looks great Peter,

Unfortunately no sexy white ones so we will have to keep the lid on the NOS Wink!

Let's put PCBWay first!

regards, Coen
13  Ultimate Audio Playback / Orelino / Orelo MKII Loudspeakers / Re: Orelo MK-II mini review on: January 26, 2017, 09:28:02 pm
Beolab

I've had the opportunity to hear these speakers at the pre release party here in Beverly Hills, LA (invite Only  Wink). I was quite excited about the event, considering it had what I thought ideal parameters for a acoustic transducer. The ability to integrate and manipulate listening window. Granted it was not the most ideal setup. A bit noisy from the busy Rodeo Drive, MP3 only, I did not find it special. Also a sense of DSP failure... too many transducers, the wide dispersion was disappointing (uneven power response)and the narrow mode was decent, but nothing special for the asking price or even less than half of it. The image density was poor. The SNR was as good as a decent car stereo. Again this was with the shortcoming as mentioned.

Did you get to audition it? I would be interested in your experience  Happy

Best,
VJ

*Edit* -  forgot, the above was also confirmed by a second pair of ears1, a friend who I had invited. He's heard my old set up...

I've not yet heard them, only watched the video. There is some Youtube material of audioshow demos that could give a faint impression. I've subscribed to a Beolab90 tour demo maillist because I wanted to hear the merits for myself.

To be frank I'm not that surprised by your findings of the demo, theory is one, execution is two. I became worried at the class-d amplifiers part. They are able to make everything sound like MP3 (maybe that's why they choose to demo with MP3).
And the demo itself? A missed opportunity? Different target audience? No room treatment eh?

Though I have great respect for the research and design effort, this never would be a speaker for me. I'm more of a "less is more" kind of guy. This worked for me all the time.

regards, Coen
14  Ultimate Audio Playback / Orelino / Orelo MKII Loudspeakers / Re: Orelo MK-II mini review on: January 26, 2017, 09:11:32 pm
You can promote a speaker without marginalizing your audience.

... (if this is directed to me)...

No way!

Please be a room treatment evangelist!

I've my share of room problems too. I've never being able to give left and right completely the same balance and have great stereo at the same time.

The merits of room treatments are well advertised, but you rarely encounter a room that has been "treated" for good audio (save for some voodoo patches or curtains on the wall -no wife!-). I never followed up to my plans to make a diffusor, I guess electronics are much more sexy to me.

In the end the acoustical room correctors make a lot of sense in a stereo setting where we aim for identical response. As I learned from the better part of the video speaker placement has a large influence in the sub 300Hz area. No way that is going to be the same for each speaker in a real untreated room.

regards, Coen
15  Ultimate Audio Playback / Orelino / Orelo MKII Loudspeakers / Re: Orelo MK-II mini review on: January 26, 2017, 11:18:23 am
You can promote a speaker without marginalizing your audience.

In this video the new Beolab 90 fully active speakers technicalities are explained:

https://youtu.be/yC0hjRHCYs0

This speaker is designed in such a way that it is able to manipulate the directivity. The implications of directivity for the perception of location are mentioned as well as the link with the work environment of the sound engineers.

It is a speaker born out of passion for audio and thoroughness. Interesting material and imho relevant results are presented since we all listen to a stereo system and share the objectives.

regards, Coen



 
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