TheMG said:RMS rating or peak/music?
Either way, I don't think any chip-amp solution is going to work for those power levels. The closest thing would probably be a driver chip (such as the LME* series) with a discrete output stage.
The LME chips are cool. I'm trying to get some.
For 1500W I'd recommend 15 pairs of NJL4281/4302 with another two pairs in parallel of those for drivers. You can use the extra thermal diodes for protection circuits.
That way you have the simple reliability of the IC chip, with the heavy-duty drive of the transistors.
It's important to remember amplifier RMS power rating is normally obtained with a pure sine wave (usually a 1kHz tone). Amplifiers driven hard with actual music never ever reach their full RMS power output.
And that is where Class D comes in handy. Under normal use (ie: music, not sine waves) the amplifier will likely never draw close it's rated output power, a class AB might draw up to it's rated power but rarely more.
And that is where Class D comes in handy. Under normal use (ie: music, not sine waves) the amplifier will likely never draw close it's rated output power, a class AB might draw up to it's rated power but rarely more.
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