MikeD
November 10, 2019, 7:04am
1
Couple of questions.
I’ve had my NAP250 internals upgraded to DR. Does this mean the amp is no longer subject to the “3 metre minimum length” rule for speaker cable?
Also - is there any sonic advantage in using two lengths per speaker, spliced together at the amp end?
Mike-B
November 10, 2019, 7:07am
2
DR is voltage regulation, it does not change anything with the amp output stage or the speaker cable load recommendations.
MikeD
November 10, 2019, 7:48am
3
Hmmm. Odd. I’m pretty sure I’ve read elsewhere that the rule no longer applies…
It applies to the poweramps. Unitis and the like are more flexible with speaker cables.
Crispy
November 10, 2019, 3:42pm
5
I wouldn’t take notice of anything a journalist wrote.
Naim power amplifiers do not have extra inductance networks in the output. Naim prefer the more elegant solution of allowing the speaker cable to provide the correct inductance and capacitance.
To do so, a minimum of 3.5 metres per channel of NACA4 or NACA5 cable is required – although the optimum length is around 5-10 metres with a maximum recommended length of 20 metres. We find the supplied Naim speaker plugs to be an optimal match for the 4mm sockets we use on our amplifiers.
In addition, …
ChrisSU
November 10, 2019, 7:38pm
7
The manual for the 250DR still specifies the 3.5m minimum length for NACA5. If, by, “two lengths per speaker, spliced together at the amp end”, you mean biwiring, I would say definitely not.
Crispy
November 10, 2019, 8:44pm
8
So based on that no Super Lumina allowed?
Yup, it’s gotta be “bell wire” all the way. Stuff of legends, mutt’s nuts, dog’s bollox etc
Or maybe it was, “load of bollox”. Can’t quite remember at my age.
system
Closed
January 9, 2020, 9:08pm
10
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