What is the normal temperature a amp should be operating at:
on (not standby), no signal provided to be amplified.
driving at 25% of power rating
driving at 50% of power rating
Reason I ask, I have a NAD375 in a well ventilated position (passive ventilation, no fans etc) and when on but not amplifying a signal, it is much hotter that what I am used to. I still need to measure the temperature, but you can keep your hand on top of the case indefinitely without burning, but it is substantially hotter than any amplifier I ever had. (though I only had 20W-50W amplifiers and a Yamaha AVR rated at somewhere in the 110W region)
Funny thing is, if I drive it at 9 o'clock or 12 o'clock (very loud already) the temperature remains the same, it does not get noticeably hotter
Is this normal?
Should I measure the quiescent current to check? Amp is out of warrantee long ago and sounds perfectly normal.
on (not standby), no signal provided to be amplified.
driving at 25% of power rating
driving at 50% of power rating
Reason I ask, I have a NAD375 in a well ventilated position (passive ventilation, no fans etc) and when on but not amplifying a signal, it is much hotter that what I am used to. I still need to measure the temperature, but you can keep your hand on top of the case indefinitely without burning, but it is substantially hotter than any amplifier I ever had. (though I only had 20W-50W amplifiers and a Yamaha AVR rated at somewhere in the 110W region)
Funny thing is, if I drive it at 9 o'clock or 12 o'clock (very loud already) the temperature remains the same, it does not get noticeably hotter
Is this normal?
Should I measure the quiescent current to check? Amp is out of warrantee long ago and sounds perfectly normal.
