Hi Jud,

nice report and it sounds promising.

I had to stop my tests due to heavy loads of the processor yesterday. (not the right XXH and driver settings)
May I know your XXH settings with the laptop, such as SFS and Q1.

My first impressions with the first test tracks have been:
1)   The sound stage moved backwards
2)   Less right/left stereo separation (with the BNC cable)
3)   More details of the cymbals

As soon as I find the best XXH settings for the laptop “the beat goes on”.

And I dare to say, this will be the best SQ with a NOS1a ever, right that SQ you experienced
 
The reason? The laptop sees the 12Volts only.

Thank you Jud.

Kind regards
Joachim

Hi Mani,

a couple of years ago a speakers manuf. gave me the following rules for the speaker placement, and that works quite well.

Important is the distance (air) to the rear wall. The distance to the sides walls has to be adjusted by listening.

The distant “Dynaudio” friend had to go with his speakers very near to the side walls due to his relative small room and the SQ is now phenomenal.

----------------
The general rule for speaker placement involves the rule of 7ths and 5ths.  Basically what I do is measure the length and the width of the room.  You then find out what 1/7 of the length is and what 1/5 of the length is, and then find out what 1/7 of the width is and 1/5 of the width is.  For example, lets say your room is 8M long x 5M wide.  The chart would look like this:

Length of room = 8 meters = 800 centimeters
800 : 7 = 114.29 cm                         2/7 of room length = 228.57 cm
800 : 5 = 160 cm                               2/5 of room length = 320 cm

Width of room = 5 meters = 500 centimeters
500 : 7 = 71.43  cm                          2/7 of room width = 142.86 cm
500 : 5 = 100 cm                               2/5 of room width = 200 cm

The calculation for the length of the room tells you how far out into the room you should place the front center of the speaker from the wall behind it.  Choose one of the numbers from the length chart that would work with your room.  2/7ths has been our favorite in most rooms (but they are all good ratios).

The calculation for the width of the room tells you how far you should place the front center of the speaker from the nearest side wall (for each speaker).

-----------------------
For a first attempt check it out , and happy moving, which is easy you wrote some weeks ago.

Joachim


EDIT I: as a test signal I'm using a "pink noise". When you hear a ball in the middle between the speakers the placement is perfect.

Hi Anthony,

your Reply #7 hits the nail …….. .

In my previous listening room the distance from the speaker plan to the rear wall was appr. 2,10m and with some room treatments I had a “concert hall”. Now, due to room limitations, I have to place the speakers very near (appr. 0,7m) to the rear wall and all the magic of the concert hall is history.

Every speaker design (brand) needs a different care for the best sound, some likes to be nearer to the rear wall others not.

A distant friend bought the Dynaudio Evidence Platinum (http://blog.avstore.ro/dynaudio-evidence-platinum-4908/) six weeks ago, and he moved the speakers “around” his room to get the position where the sound “snapped in” until yesterday” (with the professional assistance of a HiFi friend)

To get the best performance out of a speaker is sometimes a demanding challenge, and sometimes it is not a "good idea" to visit friends with new audio equipment or very good listening rooms. (This happened to me when I left Peter and it took me a week for recovery)

Joachim

Hi Arvind,

see this "explanation"

Signal cable
.........
Where possible RCA connectors should be avoided: they may be the established standard for most Hi-fi equipment but bring a number of disadvantages. The separated earthing they provide is not ideal and has a negative effect on the noise ratio. RCA connectors can also create reflection that can detract from the real signal in the cable. We recommend BNC cable with RCA adapters to reduce this.

from

http://www.phonosophie.de/International/setup.html

at the bottom of the page.

Joachim

Hi Paul,

may I get details from this CD.

Dick Olsher featuring Lesley Olsher

Thanx

kind regards

Joachim

Hi Paul,

congratulations for the phantastic sound and your report.

The room and your listening place is an "enigma" , but it works.

Have a wonderful time with your amazing sound.

Joachim

The ROOM is the thing, always!!!! 75% of the SQ is the room!!!!


Joachim

Hi Peter,

thanx.

when you are talking about the NOS1 especially it's ok. Meanwhile I have another procedure for it, and it works quite well.

Joachim

Hi Peter,

eh? So I'm behind as always! 

Please explain. Thanx.

Joachim

Hi Arvind,

please see the PDF in the Reply #45 of this thread.

I do not have any experience with a 50Ohm BNC connection from the NOS1 to a preamp. You have to test it.

From my experience with the 50Ohm BNC connection between the Dartzeel pre- and poweramp the difference ( if we make it simple) to the RCA connection was appr. 20% in favour for the BNC.

You will get the best result/SQ omitting the preamp (Peters suggestion for the best SQ possible since the beginning), if your poweramp has a decent/reliable DC offset protection.

The BNC connection between the NOS1 and the poweramp creates a new SQ.
Mani wrote, that he do not hear any cable!

kind regards

Joachim

Hi Peter,

fair writing.

We audiophiles are listening with different cables, and the BNC cable with the adapters are in a reasonable price league, and we are not bankrupt after a “failed” test perception.

As I wrote a couple of times, “bass freaks” are bass freaks and their audio system is tuned for it!
I did never hear such basses (as heard in Peters superb listening room) in live concerts.

Opposed to Peter, I believe in cables or in other words, I do hear differences between some cables. For a longer time I heard music with the Nordost Valhalla and changed in 2009 to the Swedish Entreq (Challenger) cables. There was a small difference between these two cables, and it was to distinguish on a very high level.

I never heard such a drastic difference in cables as between the RCA and BNC cables as now.
The bass in my system is now more realistic, nearer to the sound of live concerts. At deep frequencies the driver of the active subwoofer is now under full control, no undefined notes anymore.

On my system (see settings in profils) is less bass with the BNC’s than with the RCA’s. That is opposite to Peters findings with the Orelos MKII.

This BNC cables are producing less noise than the RCA’s.

The clicks of the cymbals on the Sakura, Sakura track on Stanley Clarkes CD “Jazz In The Garden” (http://www.amazon.com/Jazz-Garden-Stanley-Clarke/dp/B001VFM0QU/ref=sr_1_8?s=music&ie=UTF8&qid=1410775739&sr=1-8&keywords=stanley+clarke ) a better to hear/follow than ever.

For tests I’m more listening to live concert CDs, such as “Tenderness” from Al Jarreau (I saw him in a Frankfurt concert) ( http://www.amazon.com/Tenderness-Al-Jarreau/dp/B0016OAUAY/ref=sr_1_10?s=music&ie=UTF8&qid=1410776113&sr=1-10&keywords=al+jarreau ) and what is coming from the speakers is very realistic., also the “Return to Forever” live CD’s.

Eberhard Weber is playing a wonderful bass on the CD “Endless Days” and the SQ is great on my system. http://www.amazon.com/Endless-Days-Eberhard-Weber/dp/B00005BG87/ref=sr_1_9?s=music&ie=UTF8&qid=1410779098&sr=1-9&keywords=eberhard+weber

Every cable is a compromise in our systems, one person emphasises the highs, the other the mids and the next one the bass ……….. .

The BNC cable is for my system the best compromise and I can’t go back to a RCA cable.

So, happy testing for the forum members.

On our adjacent “toilet” , eh, library with the computer table the SQ is great.

Joachim

P.S.
Peter, I have problems with the interpretation of the following definitions:
-   so holes = on/off = square; squariness
-   grey
-   flavor

EDIT I:

-Quote-
Also watch out for my next disclaimer :
It is not said (or 100% sure to me) that it is the cable which "creates" the distortion. I mean, it can also be that it passes on better what the source is really telling. If that would be the real truth, then too bad and nothing much to do about that at this moment. Yes, maybe apply a nice heavily ringing filter. But I am not going to do that anyway ...
-Unquote-

My assumption is, due to the construction of the double shielded cable there is less noise and < HF immissions, and what we hear is nearer to the reality.

perfect!

Joachim

Hi,

did anyone make a test of the NOS1a with a connection to a battery powered laptop including W8?

Joachim

Hi,

Note to boleary & vrao.

When I have a look to the diagrams of  Reply #97 by nik.d I'm "nitpicking". Beg your pardon.

Both diagrams are showing nearly no differences (nothing due to the small scale) in the audioband up to 20KHz within the single and the double shielded cables, and we should hear no deviations in a blind test until otherwise proven.

Joachim

EDIT:

Mani is very enthusiastic with his intermediate "cheap" BNC cables, and it will be interesting to read his comment about the new cable (K_02252_D).

Hi,

both same cables (RG 142)  are a "silver-coated copper-clad steel wire". Conductor dia=0,95mm.

see:

http://www.awcwire.com/productspec.aspx?id=m17/60-rg142-coaxial-cable
&
http://www.hubersuhner.com/ProdDet/3147173

Joachim