Hi… I literally just joined the forum so forgive me if this inquiry might be in the wrong place.
New Classic 200 series owner (Trio stack) I have been enjoying the system for a week and last nighj I played a little longer and louder than the usual.
As I was choosing track in between i heard a click or some tick sound from the NAP 250.
The amp was a little warm to touch on the left side, the sound seems to be ok but just got this annoying click every like few minutes.
Was it through the speakers or physically coming from the amp?
If the latter and if you say it’s warm to the touch then I wonder whether it’s perhaps a relay - perhaps turning on the fan cooling? Perhaps something that can be clarified by your dealer.
It’s hard for me to judge as I don’t really know what it is, and I’ve not spent much time with the new 250. You might be best advised to email Naim support and get their opinion here.
Sounds like the fan kicking in. Below link may help.
Question is, if it is the fan, why is the amp working so hard? What speakers does it drive? Size of room? What speaker cable & length? What kind of SPL is ‘normal’ for you?
It’s 39° in Abu Dhabi today, is the room the amp located in air conditioned? Even if so it could be the fan kicking in due to a combination of higher load due to louder&longer music session and highish room temperature?
Hi man… I literally have to put on a jacket as I keep the room at 23 degrees:grin: with my electric bill spiraling to 700 Dollars but now i resetted everything and disconnected all components… setting up and will keep you guys posted.
As @simon has said, the click is invariably the fan clicking on/off, as the NC250 (unlike previous 250 designated models) has a fan, which is (generally) very quiet in operation. The reason the fan is kicking in is perhaps due to:
1- Small 'speakers are (counter-intuitively) often less efficient than larger-boxed ones. I think your Spendors are around 85db efficient, which is quite low i.e. they need more power/current to drive them.
2- when played loud (I think 60 would be regarded as ‘loud’ - but you may be needing to do this to get them to play ‘loud’ given (1)?).
3- the issue with (2) is that the louder you play the 'speakers, their response veers from linearity, so they become harder and more demanding on an amp = heat = fan comes on.
Things can be made worse if the power feed to the amplifier isn’t 100%/stable – always check the power cabling is fully home.
4- the above can be further aggravated by some 'speaker cabling. See the FAQ section of the Forum. Naim amps prefer high inductance cables (low capacitance) and, in particular, some multi-strand and twisted 'speaker cables can make an amplifier work harder/even dull the sound (the latter perhaps encouraging turning up the volume even more!).
So, what 'speaker cabling are you using and just how loud are you playing things?