I post this between serius and joke and i will try to collect opinions through this post ....
Can any body imagine a Class AB amplifier ( as we speak a real product that exists on the market and magazines write poems about its sound ) that actually has 2 output transistors per ch , has them also on separated heat sinks , and the all project features no Vbe multiplier or in total a safety thermostat ....
***In the first place you will have each transistor conducting according to how hot is it ....Even with matched transistors there is not guarantee that those will share the same heat .... Having transistors working this way at some point distortion will be increased and safety margins will drop to zero . HAving the 2 transistors in a common heat sink will equalise the heat between them so both will work in the same temp .
***Then having one class AB amplifier operating with no Vbe Multiplier ( TBH there is one thermistor per ch that senses temp from the open air) ( there is no mechanical attachment to anything )
A) will make one amplifier that will have totally diferent behavior when cold different when in operating temp and diferent when its warmed up for good
All aspects that form the sonic signature of one amplifier such as class of operation distortion and harmonics will be altered according to temp produced by opration and always this is plus ambient .... Even if the amp is playing in a steady load and a steady volume level, ambient temp on its own will be enough to alter the sonic signature of the amp ....
***Finally machine that operates under those principals will eventually fail from thermal runaway if pushed a bit harder or on a day like this which is very hot 45 degrees at some places in Greece ....
If you agree with what i write so far the i will go ahead posti pictures of the machine ....
Can any body imagine a Class AB amplifier ( as we speak a real product that exists on the market and magazines write poems about its sound ) that actually has 2 output transistors per ch , has them also on separated heat sinks , and the all project features no Vbe multiplier or in total a safety thermostat ....
***In the first place you will have each transistor conducting according to how hot is it ....Even with matched transistors there is not guarantee that those will share the same heat .... Having transistors working this way at some point distortion will be increased and safety margins will drop to zero . HAving the 2 transistors in a common heat sink will equalise the heat between them so both will work in the same temp .
***Then having one class AB amplifier operating with no Vbe Multiplier ( TBH there is one thermistor per ch that senses temp from the open air) ( there is no mechanical attachment to anything )
A) will make one amplifier that will have totally diferent behavior when cold different when in operating temp and diferent when its warmed up for good
All aspects that form the sonic signature of one amplifier such as class of operation distortion and harmonics will be altered according to temp produced by opration and always this is plus ambient .... Even if the amp is playing in a steady load and a steady volume level, ambient temp on its own will be enough to alter the sonic signature of the amp ....
***Finally machine that operates under those principals will eventually fail from thermal runaway if pushed a bit harder or on a day like this which is very hot 45 degrees at some places in Greece ....
If you agree with what i write so far the i will go ahead posti pictures of the machine ....
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Any amp that features lateral mosfets outputs would fit the description as it does not require a VBE multiplier.