what do you think about these amp guts?

[VWBobby 10+ year member]

Its because your converter is drawing a constant 15 amps (or there about). If it was drawing 10 amps constantly, it wouldn't be an issue.....or it if was short bursts that were around 15 amps, not sustained.

 

[ngsm13 5,000+ posts]

This thread makes me want to punch babies in the face.

 

[JimJ 5,000+ posts]

This thread makes me want to punch babies in the face.

Bro, you should see the other one about how inductors should be the only thing heatsinked in a circuit.

Or how the metal case does nothing for heat transfer.

 

[BnGRacing 10+ year member]

Bro, you should see the other one about how inductors should be the only thing heatsinked in a circuit.
Or how the metal case does nothing for heat transfer.

Man, you're illiterate.

...but if you think the hottest component in the amp doesn't need to be sink'd, that's your own issue.

 

[ngsm13 5,000+ posts]

:facepalm:

 

[JimJ 5,000+ posts]

...but if you think the hottest component in the amp doesn't need to be sink'd, that's your own issue.

Show me a picture where this is the case.

 

[Shinju 10+ year member]

Oh boy.... In for teh lulz..

 

[ngsm13 5,000+ posts]

Inductors!!!!!!!

 

[ampjunkielikeme 10+ year member]

how would you heatsink a inductor?

 

[slim2fattycake 10+ year member]

Lol

 

[skylineTT 10+ year member]

how would you heatsink a inductor?

I was wondering this as well.

 

[BnGRacing 10+ year member]

how would you heatsink a inductor?

You don't.

If the amp was designed right it wouldn't be the thing that gets hot...the fets would. So when your 3kW amp is cool to the touch even though you've been beating on it for an hour, you have a poorly designed amp. The toroid will be hot and have no efficient way to dissipate that heat. Remember folks, amps turn a certain % of power into heat as they're not 100% efficient and if the case isn't getting warm you can be sure something else inside is.

The amp's heatsinks getting hot is a good thing but stupid consumers thought this was bad for whatever reason. Plenty of old Rockfords still kicking 20+ years later while these new cheap current limiting ChiCom amps are in a landfill days after their warranty expires.

 

[ampjunkielikeme 10+ year member]

well, you said that the hottest thing in modern amps are the inductors, and it needs to be sink'ed .. that led me to my question...

"how would you heatsink a inductor..?"

and now you say they don't need to be ...?

the "fets" do get hot. have you ever tried to power up and beat on a 3000+ watt class d amp without the heatsink before? it wont last very long. and its not because the inductors got to hot....

these inductors and blue square poly capacitors in (most) class d amps are just a very big version of a passive low pass crossover. it is part of the design. they need this feature to work/sound right. so it is designed correctly.

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