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Old 17th August 2012, 03:13 PM   #4941
Julf is offline Julf  Europe
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Quote:
Originally Posted by 3lviz View Post
I think better solution is to put a proper on/off switch to back of the amp, so the "retarded" can't reach it .
That's where I put it

But - I don't use it for the normal turning on/off of the amps, I prefer to use the standby feature.
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Old 17th August 2012, 03:23 PM   #4942
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Originally Posted by RockLeeEV View Post
Is a single SMPS600 enough for a pair of NC400s? I guess I just don't want compromised dynamics, especially since my speakers are only around 84db/w/m hanging around 4 ohm.
I believe that Bruno said in a previous post that there was little or no benefit to using two SMPS600s. You could do a search to find his exact words.
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Old 17th August 2012, 03:39 PM   #4943
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Originally Posted by mike_mcf View Post
I believe that Bruno said in a previous post that there was little or no benefit to using two SMPS600s. You could do a search to find his exact words.
Some have claimed that tests showed that having one smps600 per ncore was audible better than having two ncores sharing one smps600.

obviously havenīt tested this myself -yet
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Old 17th August 2012, 03:44 PM   #4944
Julf is offline Julf  Europe
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Originally Posted by Juhleren View Post
Some have claimed that tests showed that having one smps600 per ncore was audible better than having two ncores sharing one smps600.
Actual double-blind listening tests?
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Old 17th August 2012, 03:48 PM   #4945
Regnad is offline Regnad  United States
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Checking again for any experiences with bridged NC400s??

Sound, pros/cons...

Thanks!
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Old 17th August 2012, 04:15 PM   #4946
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Quote:
Originally Posted by Julf View Post
Actual double-blind listening tests?
It couldn`t possibly be double blind, else we wouldn`t know which was which.
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Old 18th August 2012, 12:32 PM   #4947
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Quote:
Originally Posted by Julf View Post
Actual double-blind listening tests?
I believe they were listening, but I canīt recall their test setup.

Since nobody seems to have conducted double-blind listening tests with approved double-blind peer reviewed results under current EE and AE standards, I think thats what we have to go with for now.

Julf, I believe it would be of great value to the community if you were to conduct such a test yourself -especially with thorough, precise and detailed test-condition documentation. Iīm sure there are some scientific journals with double-blind review processes where you can try to publish the results
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Old 18th August 2012, 12:42 PM   #4948
Julf is offline Julf  Europe
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Quote:
Originally Posted by Juhleren View Post
Julf, I believe it would be of great value to the community if you were to conduct such a test yourself -especially with thorough, precise and detailed test-condition documentation. Iīm sure there are some scientific journals with double-blind review processes where you can try to publish the results
Cheers - I don't feel any need or inclination to do that testing, as I am personally more than happy with the sound of my nc400's sharing one smps per pair, and as I anyway tend to believe the opinion of the designer of the amps more than somebody's statement that "some have claimed that tests showed" something...
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Old 18th August 2012, 12:55 PM   #4949
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Quote:
Originally Posted by Julf View Post
As stated, the best way to do that is to either use the SMPS standby line to switch the power supply to standby, or nAMPON to put the amp(s) into standby.
Dear Julf, I understand how to put the Ncore amp module into standby but didn't quite get how you do this with the SMPS power supply. And is it advisable to connect both to a standby switch or only one of the two, and if the later which one is better?
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Old 18th August 2012, 01:11 PM   #4950
Julf is offline Julf  Europe
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Originally Posted by sonnenwender View Post
I understand how to put the Ncore amp module into standby but didn't quite get how you do this with the SMPS power supply.
On the SMPS600, pin 1 on J1 is "SMPS Standby" - applying a voltage between 3.3 and 12 V to that pin will put the SMPS into standby mode - and the transition will be a "soft" shutdown/startup.

Quote:
And is it advisable to connect both to a standby switch or only one of the two, and if the later which one is better?
Well, using the SMPS Standby turns the power supply into standby too, not just the amps, so it is the preferable solution, but requires a separate voltage to be available to drive the standby pin. No problem fro me, as my preamp/DAC can provide the control voltage, but slightly more complicated for a stand-alone amp, where just using amp standby might be the simpler solution.
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