martin clark
pinko bodger
Yep - for Naim, and closely Naim-based amps (and quasi-comps output stages in general) - that is demonstrably true.
Avondale NCC300 Monos Underway
- Thread starter Mike Hanson
- Start date
Mynamemynaim
38yrs a Naim owner
On the 300"s I've set bias with the lid off
But...I've noticed while the heat sink gets warm, the tops of the four output transistors stays very cool
This leads me to think the heat is wicked away quite efficiently on the cases I'm using, and when I eventually put the lids back on (soon I think) I'm not worried about setting drifting too much
Funny enough I always set the 200 and 220 with a cover over the cases ...as they do seem to get warm in the box
But...I've noticed while the heat sink gets warm, the tops of the four output transistors stays very cool
This leads me to think the heat is wicked away quite efficiently on the cases I'm using, and when I eventually put the lids back on (soon I think) I'm not worried about setting drifting too much
Funny enough I always set the 200 and 220 with a cover over the cases ...as they do seem to get warm in the box
laverda
pfm Member
Sorry, how can I find two ncc300 cards ..
If anyone in the group has two others, I would be very interested.
Thanks
Mynamemynaim
38yrs a Naim owner
Good luck with that !
Took me over two years to finally get a pair ...I won't say where from.
Took me over two years to finally get a pair ...I won't say where from.
Mike Hanson
Trying to understand...
After a few months of "holidays followed by catching up after holidays", I'm finally making some progress on this pair of mono amps. I've got all the components into both enclosures. Now I can start wiring and testing.
I'm hoping to make more progress tomorrow.
I'm hoping to make more progress tomorrow.
Gervais Cote
Predator
Awesome ! Nice layout, plenty of room and more than enough heat sink so really built for the long terms.After a few months of "holidays followed by catching up after holidays", I'm finally making some progress on this pair of mono amps. I've got all the components into both enclosures. Now I can start wiring and testing.
I'm hoping to make more progress tomorrow.
Wish some manufacturers get inspired by such design.........
Mike Hanson
Trying to understand...
Avondale's NCM1 has a variety of features:
- Fused input with connection to case earth through two standoffs.
- Soft Start Module
- Variable power switch LED supply
- Rectifier and caps for the input stage
- Rectifier and caps for the output stage
say it as it is
pfm Member
Sounds an amazing piece of kit replaces a lot of parts if it had speaker protection it would be literally one stop solution
Mike Hanson
Trying to understand...
Yup. Their offering is the SPM you can see in the back beside the NCC300. It also does fan control, although I'm not using that feature in this build.
Gervais Cote
Predator
And do you know if the tripping temperature can be adjusted by the small blue rectangular box located beside the large white relay ?
Mike Hanson
Trying to understand...
I've not researched that at all, but it seems to be a reasonable assumption, given that section of the board is related to fan control.
Mike Hanson
Trying to understand...
I can't take much credit for the layout, as it's the same one Avondale uses in many of their own builds.
say it as it is
pfm Member
Ah does Les offer the SPM as a DIY part then could be a great retro fit to my A260Z
Mike Hanson
Trying to understand...
You would have to call Les and ask. I got mine along with the NCC300 already mounted on the heat spreader.
Mynamemynaim
38yrs a Naim owner
It's not listed as a unit or kit on his website
Only the SPM
But he might still sell you one if you catch him on a good day!
Only the SPM
But he might still sell you one if you catch him on a good day!
say it as it is
pfm Member
only SSM2 om his website did I miss the SPM?
Mike Hanson
Trying to understand...
The website mentions only the SSM2. Avondale has many things that are not listed on the website. I think they're too busy building stuff to update the site with the latest offerings.