Multi-Channel, Multi-Amplifier Audio System Using Software Crossover and Multichannel-DAC

[dualazmak]

Are you concerned about heat from those resisters burning the board?

No, not at all.
They were/are never warmed-up/heated-up above a few degree-C higher than room temperature in my use case! (It is just same as in @Langston Holland's study on ARCOL 4 Ohm 300 W non-inductive metal-clad power-type resistors operating in much-much higher power loads.) He described there;
Heat
Neither of the ARCOL resistor setups showed any detectable warming. They remained as cool to the touch after the measurements as before. The water heater elements (rated at 4,500W each submerged) remained on the bench air-cooled (shown below). I did notice a very slight warmth to the touch after the 200W sweep.

 

[Doodski]

No, not at all.
They were/are never warmed-up/heated-up above a few degree-C higher than room temperature in my use case! (It is just same as in @Langston Holland's study on ARCOL 4 Ohm 300 W non-inductive metal-clad power-type resistors operating in much-much higher power loads.) He described there;
Heat
Neither of the ARCOL resistor setups showed any detectable warming. They remained as cool to the touch after the measurements as before. The water heater elements (rated at 4,500W each submerged) remained on the bench air-cooled (shown below). I did notice a very slight warmth to the touch after the 200W sweep.

I see. Well, be careful.

 

[dualazmak]

Multimeter, heat-melting glue gun, hot-air gun (heat gun); for my DIY benchwork

After kindly visiting my above post #976, one of my dear ASR Friends personally contacted me by PM requesting info on multimeter, heat-melting glue gun and hot gun, I use in my DIY benchwork.
Accordingly, I am more than happy sharing these four photos;

I have already shared this photo in my post here;

 

[Doodski]

Multimeter, heat-melting glue gun, hot-air gun (heat gun); for my DIY benchwork

After kindly visiting my above post #976, one of my dear ASR Friends personally contacted me by PM requesting info on multimeter, heat-melting glue gun and hot gun, I use in my DIY benchwork.
Accordingly, I am more than happy sharing these four photos;
View attachment 418247

View attachment 418248

View attachment 418249

I have already shared this photo in my post here;
View attachment 418250

Do you prefer analogue multimeters? Why don't you have a digital multimeter.

 

[dualazmak]

Do you prefer analogue multimeters? Why don't you have a digital multimeter.

I assume you well understand my love and nostalgia on old-style analog needle meters!
- My nostalgia and preference for large glass-face VU meters: DIY of 12-VU-Meter Array in multichannel multi-driver multi-way multi-amplifier stereo audio system: #535

Even though I have another digital multimeter...

 

[Doodski]

I assume you well understand my love and nostalgia on old-style analog needle meters!
- My nostalgia and preference for large glass-face VU meters: DIY of 12-VU-Meter Array in multichannel multi-driver multi-way multi-amplifier stereo audio system: #535

Even though I have another digital multimeter...

O' I do... LoL. I have owned some vintage analogue meters that where very pricy in their day and worked wonderfully and where beautiful to work with. For day to day work I prefer a good DMM like a Tektronix though because they are faster for semi-conductor metering etc.

 

[boxerfan88]

View attachment 418247

Wow … very nice!!

I used to own a Sanwa AMM decades ago. This picture brings back memories…

 

[Sal1950]

Do you prefer analogue multimeters? Why don't you have a digital multimeter.

I like a nice analogue for benchwork but find digitals better for portable toolbox use, they take a beating better.