RF amp overheating

[ThatChevyGuy 5,000+ posts]

I have never played my system for 2 hours. Hmmm

 

[soldiermedic 10+ year member]

I play it for long car trips along I-5 when I go to Seattle from Tacoma, and sometimes farther. Average commute for me to work is 40 minutes one way. It stays on for rides to work, but if I randomly decide to go out for a long drive, I am screwed on bass fill about 1.5-2 hours into the trip.

 

[cleansoundzz 10+ year member]

The amp is designed to get hot like that. It is called MEHSA which is actually a patented technology that RF has used for the last 8 years. While the amp gets hot on the outside the components stay much cooler. Literally all of the heat stays on the heatsink. I have a T400-2 in my 300zx and it has never cut off on me before. If it has never shut off because of overheating why worry about it. Yes the amp is 2 ohm bridged stable but you take a risk of losing a little of your damping factor and the output won't be much higher from 4 ohm bridged to 2 ohm bridged. For a class A/B amp the t400-2 has an efficiency of 75% which is really really good.

Use good judgement when playing your sounds that long. 2 hrs is a lot.

 

[lantz 10+ year member]

The amp is designed to get hot like that. It is called MEHSA which is actually a patented technology that RF has used for the last 8 years. While the amp gets hot on the outside the components stay much cooler. Literally all of the heat stays on the heatsink. I have a T400-2 in my 300zx and it has never cut off on me before. If it has never shut off because of overheating why worry about it. Yes the amp is 2 ohm bridged stable but you take a risk of losing a little of your damping factor and the output won't be much higher from 4 ohm bridged to 2 ohm bridged. For a class A/B amp the t400-2 has an efficiency of 75% which is really really good.
Use good judgement when playing your sounds that long. 2 hrs is a lot.

x2^^^^

 

[soldiermedic 10+ year member]

Actually, it has shut off due to overheating. That's the main reason for the thread, I apologize for not clarifying that from the start. Still, I totally understand your POV. but I don't wanna turn it down.......WAAA!!!!!!!!!!!

 

[headless 10+ year member]

just wire up the fan. I already give you the solution and it costs you 10$ and a half hour of time. Alternatively you can get rid of a perfectly good amp and replace it with a class D that doesn't get warm. That's a bit more expensive than 10$ and a half hour of time though //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Mazdaboi318 10+ year member]

I can vouch for what the guy was saying about the t-400....it never went out on me either!

 

[headless 10+ year member]

my Punch 100IX DSM got hot as hell too...never cut out either. Adding a fan did drop heatsink temps by about 30f.