Considered it, but don't want to void my warranty.Couldn´t you just heat the solder joints (with a soldering iron of course) ? It would save a lot of time away from the amps.
Considered it, but don't want to void my warranty.Couldn´t you just heat the solder joints (with a soldering iron of course) ? It would save a lot of time away from the amps.
I don't think it would help anyway. Far more likely the legs have fractured just above the solder joint (where they flex during vibration)Considered it, but don't want to void my warranty.
If this is true you would expect that others of the same part would also have come loose. This looks more like something engaged the parts during shipment or the like. It would be interesting to see how the parts were damaged in the other examples mentioned. If in the same location, its not a vibration problem.That is almost certainly transport vibration. Those are tall narrow caps. They'll move side to side under vibration and fracture the legs.
That is almost certainly transport vibration. Those are tall narrow caps. They'll move side to side under vibration and fracture the legs.
It is really difficult to get larger 2 pin devices through vibration tests. The quick and dirty solution is to glue them all together - but that is not very manufacturing friendly.
They also state the vibrational tests.
IcePower Does Glue their caps.
Lots of people do.
IcePower Does Glue their caps.
Depends.If this is true you would expect that others of the same part would also have come loose. This looks more like something engaged the parts during shipment or the like. It would be interesting to see how the parts were damaged in the other examples mentioned. If in the same location, its not a vibration problem.
This seems really unlikely in a shipping situation- unless the packaging is really poor.Depends.
If there is a mechanical resonance in the PCB that causes some parts of the PCB to vibrate more than others at particular freqeuncies, then it is quite possible for some parts to be damaged and not others. This would consistently impact components in the same location.
Problem is, how things behave under vibration - especially when resonances occur - are really counter intuitive. It is why testing is done.This seems really unlikely in a shipping situation- unless the packaging is really poor.
I found in the build guide they do mention thermal paste as unnecessary, but do not prohibit or mention it anywhere else. I used a bit in my mono kits between the modules and the baseplate. I can say that the modules (and paste) are effectively passing heat into the entire case as the entire thing gets warm when left on for significant periods of time. Whether it's much better than without the paste I cannot say as I never tried it.Regarding the thermal issue, though the instructions don’t call for it, is there any problem with applying a healthy blob of a quality thermal paste to the bottom of the amp modules? Is this overthinking/ overkill? Everyone seems to agree that heat is the enemy of electronic components so why not?
I see @Hypexsales is monitoring this thread, so I’ll ask this as well:
- would adding thermal paste void the warranty?
- when will we see and OEM version of the Nilai?
Asking for a friend…
I wouldn't be worrying too much about those temperatures. The PCB itself will be rated to at least 130C (266F). That scattering of chip caps and resistors will be rated for 150C (302F)"They look really hot"
184°F for the board that has all the small components may be an issue.
If I understand well it is the board with the class D amp: there is not any possible repair work if it fails
155°F is for the board that has the power supply: it may lower the life time of the power supply but it may be possible to repair.
@gearnut Are you sure that the thermal camera was well calibrated?
I provided that info in another thread: https://audiosciencereview.com/foru...-d-2x-hypex-nilai-500-mono.41870/post-1481360They look really hot. No seriously, they look hot! -What are the idle power draw from these?
Oh. 14 W. But I would guess the apparent power is much higher on those.I provided that info in another thread: https://audiosciencereview.com/foru...-d-2x-hypex-nilai-500-mono.41870/post-1481360
"Apparent power" (if higher than actual power) doesn't generate extra heat.Oh. 14 W. But I would guess the apparent power is much higher on those.
I know. Not in the apparatus anyway. -But puts extra load on the electrical system that transports it, with extra losses herein."Apparent power" (if higher than actual power) doesn't generate extra heat.