Problem with 2 Sundown amps overheating...

[sundownz Pro Seller]

Sorry to thread-jack, actlsub, but I believe my problem is mainly from the sun heating up my cab and also the lack of air circulating around the heat sink. They've never gone into protection or anything. My seat rests right up against the heat sink, so air flow is very minimal.

A warm amp isn't a problem if it's not protecting, so you are perfectly fine.

A Class A/B amp simply does produce a fair bit of heat, it's a matter of fact - the heatsink has a job to disperse heat to the air around the amp so it should be warm.

 

[sundownz Pro Seller]

The 1000 when into thermal inside a garage, the 100.4 was very hot as well.
I can check my voltage but I think its fine. As for ground I believe its good, I guess I'll check that again.

Gain settings on both amps are only at about 25%.

A 1000D going into thermal at 2 ohms in a garage is not normal at all.

A 100.4 that is a bit warm is not a worry if it is not protecting, but since you say it is that is not normal inside a cool garage.

If this were outside on a very hot day that is not anything to worry about.

Where did you get these amps and how long have you had them ?

 

[tc300 10+ year member]

^^^^^^^^^ yeah dude check ALL the above b4 something bad happens

 

[BassmentJack 10+ year member]

//content.invisioncic.com/y282845/emoticons/word.gif.64b12e39f936af3b4fff38a1c0bd0244.gif Sundown is the shiznit

 

[KHARPS 10+ year member]

thanks, sundownz.

 

[actlsub 10+ year member]

A 1000D going into thermal at 2 ohms in a garage is not normal at all.
A 100.4 that is a bit warm is not a worry if it is not protecting, but since you say it is that is not normal inside a cool garage.

If this were outside on a very hot day that is not anything to worry about.

Where did you get these amps and how long have you had them ?

I bought them brand new about a 2 weeks ago from db-r electronics.

 

[sundownz Pro Seller]

I bought them brand new about a 2 weeks ago from db-r electronics.

Hmmmm. Certainly not normal behavior.

Check the grounds, measure the DC voltage while they are playing.

 

[actlsub 10+ year member]

Hmmmm. Certainly not normal behavior.
Check the grounds, measure the DC voltage while they are playing.

OK, I'll do that today.

I just want to reiterate that the 1000 went into thermal and the 100.4 was just as hot while neither amp was playing anything.

 

[sundownz Pro Seller]

OK, I'll do that today.
I just want to reiterate that the 1000 went into thermal and the 100.4 was just as hot while neither amp was playing anything.

That is especially weird.

Both amps say "Tested" on them, correct ?

That means they were both wired up on a test bench here and played before shipment and did not exhibit any such behavior at the time.

 

[actlsub 10+ year member]

That is especially weird.
Both amps say "Tested" on them, correct ?

That means they were both wired up on a test bench here and played before shipment and did not exhibit any such behavior at the time.

Yes both say tested. This is why I feel like I have something wired wrong or I did something incorrectly, but I can't think of anything. They play fine and sound normal before they overheat.

 

[sundownz Pro Seller]

Indeed - simply start by checking the ground connection and measuring the DC supply voltage.

 

[WALKS UP]

I love this sundown tech. support straight from the owner //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Beerdrnkr 5,000+ posts]

The ground is my guess, I had the same problem now both my sundowns work great.

 

[tc300 10+ year member]

I love this sundown tech. support straight from the owner //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

YES!! that is awsome!! i soon will be get'n a sundown amp. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[actlsub 10+ year member]

I love this sundown tech. support straight from the owner //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Yes, that is why I bought these two amps, and now I'm glad I did.