120 at the receptacle. 2400 watts to trip the breaker. A 1200 watt microwave with a 1200 watt drawing toaster will do it.
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Class D amp long term reliability
- Thread starter sophie smith
- Start date
Fans are made by Arctic, F12 or P12 PWM.
Temp control module is ZFC39, beware fakes, the good ones have screen printing on underside of pcb.
The point I'm making is that a major killer of audio equipment is heat.
Yes lower spec components/modules can have lasting performance so long as temperature is kept within design limits.
Electrolytic capacitors have electrolyte liquid sealed inside.
Rating at 105°C is worst case life expectancy, usually a conservative rating.
Run them at say 40°C max, keep the caps away from hot stuff, adequately heatsink the amplifier to spec sheet, allow good convection cooling too, don't put them in high ambient, and fan cool the design, if necessary.
Temperature monitoring is easy/cheap to do these days, as is silent (variable) fan cooling.
Yes lower spec components/modules can have lasting performance so long as temperature is kept within design limits.
Electrolytic capacitors have electrolyte liquid sealed inside.
Rating at 105°C is worst case life expectancy, usually a conservative rating.
Run them at say 40°C max, keep the caps away from hot stuff, adequately heatsink the amplifier to spec sheet, allow good convection cooling too, don't put them in high ambient, and fan cool the design, if necessary.
Temperature monitoring is easy/cheap to do these days, as is silent (variable) fan cooling.
I also remember somebody asking if putting plate amplifiers into a subwoofer box is detrimental to reliability.
Yes, if they are allowed to overheat.
Yes, if they are allowed to overheat.
What about vibration? Seems like the only effect it could have on reliability would be a shorter life span.
Shorter life span is lack of reliability, allowing components to run too hot.
A seperated vented enclosure, cooling inside of amp by convection and a fan if necessary.
Bingo.
Batten the hatches.
Was Salt suggesting the reason for seperated enclosure was to do with vibration affecting the module's physical integrity?
Maybe, but not so much as overheating in my book.
Maybe, but not so much as overheating in my book.
And maybe, because cheaper higher power modules are chosen for rough ride, mass market, much more often than expensive, cherished....
A separate enclosure does not only prevent an external vibration but can serve for severe ventilation. Hypex, for example, have their own examples, how to adjust their plate amps (they do have openings on top and on the feet).
Monitor internal temp in extreme use.
NCMP are designed to be used 'flat', vertical, or worse, upside down, compromises dissipation.
There is a fact I learnt from Hypex.
If mounting a vertical NCMP based plate amplifier in a sub, Fusion for example, make sure extra ventilation is provided.
The vents on Fusion will not be adequate if you really want to push it, Salt'n'Pepa.
The vents on Fusion will not be adequate if you really want to push it, Salt'n'Pepa.
So we go and circle back to other comments to support our arguments.
Note that scenario 3 and 4 are not so less likely to me as such.
3) because the manufacturer was able to amicably sort out the customer's issue(s), no need to shout.
4) because it was (they were) cheap.
4) because it was (they were) cheap.
Why was this guy deleted, if not a silly question?
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Maybe deleted themself. Not necessarily a mod move.
Maybe this is why he went voluntarily (gave up the fight), or was he pushed?
Some call it a 'race to the bottom'.
Cheerio!
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