16-Oct-2015, 16:24
Manoet,
On my system too the temperatures are within 1C (33, 32, 34) at the moment.
I would tend to think that the mix between A and D depends on the speakers themselves since the lower the impedance the more work the class D amplifiers will have to do for the same energy from the class A amplifier. Also I suspect that the type of musical program can influence that ratio too: the class A amplifier works mostly to compensate the inaccuracy of the class D amplifiers which are higher for high frequencies than for low frequencies. So I would tend to think that a solo of crash cymbal would be more demanding to the class A amplifier than playing a pipe organ tube of 16 feet which would be more demanding on the class D part.
My point being that given a pair of speakers and a particular type of music, I would expect all temperatures to be linearly related, which mean that if they are within 1C around 30C it would require them to be in the 60s range to see a delta of 2C.
Jean-Marie
On my system too the temperatures are within 1C (33, 32, 34) at the moment.
I would tend to think that the mix between A and D depends on the speakers themselves since the lower the impedance the more work the class D amplifiers will have to do for the same energy from the class A amplifier. Also I suspect that the type of musical program can influence that ratio too: the class A amplifier works mostly to compensate the inaccuracy of the class D amplifiers which are higher for high frequencies than for low frequencies. So I would tend to think that a solo of crash cymbal would be more demanding to the class A amplifier than playing a pipe organ tube of 16 feet which would be more demanding on the class D part.
My point being that given a pair of speakers and a particular type of music, I would expect all temperatures to be linearly related, which mean that if they are within 1C around 30C it would require them to be in the 60s range to see a delta of 2C.
Jean-Marie
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