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.
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 haven´t tested this myself -yet 🙂
I believe they were listening, but I can´t 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. I´m sure there are some scientific journals with double-blind review processes where you can try to publish the results
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. I´m 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...
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?
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.
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.
Btw, anybody know a good solution for remote controlled standby on the smps600? Not working via another device but on its own, i.e. based on some sort of IR controlled relay.
For general ir receiver duties I found this to be superb;
hhttp://www.tauntek.com/tinyir2-learning-ir-remote-control-receiver.htm
hhttp://www.tauntek.com/tinyir2-learning-ir-remote-control-receiver.htm
Nice to see this again. I ordered a TinyIR from the same guy years and years ago. At that moment there was no continuous output (which the new version has now). And the guy was so friendly to program a special version for me, including 2 continuous outputs (for volume). It is still working (on a preamp for my Hypex). So I strongly recommend him, although I agree this is completely off-topic.
Even more off-topic (sorry guys), here another possibility, they also have an IR-shield: http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board..
Even more off-topic (sorry guys), here another possibility, they also have an IR-shield: http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board..
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Hi guys,
I plan on using twisted pairs for the NC400 loudspeaker output, but is there any further benefit from using shielded twisted pairs, either from a practical or theoretical perspective?
Regards,
Thanh
I plan on using twisted pairs for the NC400 loudspeaker output, but is there any further benefit from using shielded twisted pairs, either from a practical or theoretical perspective?
Regards,
Thanh
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Considering the excellent current capability and low internal impedance of the nc400, you might have trouble finding shielded cables with enough internal diameter and thus current capability and low resistance.
There's at least a few screened 2x 2.5 or 4.0 mm^2 twisted speaker cables that I can find so that fits the bill-
Supra Cables
As for whether they are necessary, or desirable, is a different matter.
Supra Cables
As for whether they are necessary, or desirable, is a different matter.
Supra doesn't seem to specify anything about the twisting (typically twists/meter is specified).
Agree. Probably not necessary. The shield usually adds capacitance, but no idea is that is an issue or not.
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