Thanks for the insight,
I was just sharing temperature readings for comparisons and asking if anyone with the L70 has experienced any high levels of heat that are unusual. Researching this online is just wasted time so anyone with some factual information would be helping the hype of the L70 running hot I keep coming across while researching.
I do have an open design entertainment stand I designed and built myself just 3 legs and shelves so not overly worried about the operating temps, I started using the fan for the unusually hot summer spells I wanted to keep the new B100`s from getting hot any want to stretch as much life as I can out of them.
Some people might think 30C is hot while I would say 40C is hot ?
There is a reason for sever rooms to be keep at cold temperatures, so I can`t be the only person unsure of what is Hot and what is normal and or optimal for a long life span ?
It would be a superb idea to have some kind of reference in the spec sheet to normal operating temp of the units outer housing with a max temp so people would now if there unit is operating is it designed to and if it`s inside a cabinet during one of those extreme heat event of our summers they could deal with that situation.
Having the housing temp spec would help everyone including people without circuit engineering degree's ;-/
My Harman Kardon AVR 140 the top case reaches about 45C on cooler days not sure about hot summer days but I`ve had that beast on everyday for 15 years for 10 or more hours a day always in an open stand and the audio is still pure as it was new.
I haven't noticed any high temperatures on my L70 in two years, even at high gain with PEQ on the HE6se V2 and at high volume.
People are completely unsuitable as thermometers. For one person, 32°C is hot, while for another, 40°C is warm. The difference between two people's perceived temperatures can easily be 10-15°C, sometimes even more. Different surface textures, coatings, and materials alone can result in perceived differences of 40°C or more.
By the way, your AVR will be significantly warmer inside; 60°C is not uncommon.
As a manufacturer, I wouldn't specify temperatures either, because that would only lead to even more confusion. There are simply too many factors that influence the device temperature for the customer. In summer, temperatures can easily reach 50°C, which is no problem at all. Most AVRs run warmer inside, sometimes even significantly. One must also not forget that conventional amplifiers over the last 50 years have been running at temperatures of over 45°, often even over 50° inside and on the heat sinks, and this often lasts for 30 years. If it wasn't a problem before, why is it suddenly happening now?
Devices are much smaller today, and the power dissipation has a much smaller surface area, which also demonstrates the efficiency of today's devices.
I would consider returning the A70 Pro. Compared to the L70, it is significantly higher quality and more elaborately constructed, which is why it is more expensive. But that's just my personal opinion.
5V, 2W, 0.38A is needed, and L70 can handle that.
