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Este es el Yamaha 3060:

Two channels driven continuously into 8-ohm loads:
0.1% distortion at 159.0 watts
1% distortion at 186.4 watts

Five channels driven continuously into 8-ohm loads:
0.1% distortion at 102.3 watts
1% distortion at 127.1 watts
Seven channels driven continuously into 8-ohm loads:
0.1% distortion at 52.2 watts
1% distortion at 53.6 watts

This graph shows that the RX-A3060’s left channel, from A1 input to speaker output with two channels driving 8-ohm loads, reaches 0.1% distortion at 159.0 watts and 1% distortion at 186.4 watts. Into 4 ohms, the amplifier reaches 0.1% distortion at 228.7 watts and 1% distortion at 294.3 watts.

Este el Yamaha RX-V1:

The measurement shows that the RX-V1's left amplifier channel, with two channels driving 8-ohm loads, began clipping at 0.0056% distortion and 100.1 watts. The amp reaches 0.1% distortion at 123.8 watts and 1% distortion at 142.7 watts, as shown. Into 4 ohms, the amplifier begins clipping at 195.5 watts and reaches 0.1% distortion at 217.7 watts and 1% distortion at 235.8 watts.
No hay medición en multicanal.

Denon X7200W:

This graph shows that the AVR-X7200W’s left channel, from CD input to speaker output with two channels driving 8-ohm loads, reaches 0.1% distortion at 146.6 watts and 1% distortion at 185.8 watts. Into 4 ohms, the amplifier reaches 0.1% distortion at 234.7 watts and 1% distortion at 265.5 watts.
2 channels driven continuously into 8-ohm loads:
0.1% distortion at 146.6 watts
1% distortion at 185.8 watts

5 channels driven continuously into 8-ohm loads:
0.1% distortion at 122.3 watts
1% distortion at 138.0 watts

7 channels driven continuously into 8-ohm loads:
0.1% distortion at 113.7 watts
1% distortion at 124.0 watts

Denon 5308CI:

This graph shows that the AVR-5308CI’s left channel, from CD input to speaker output with two channels driving 8-ohm loads, reaches 0.1 percent distortion at 207.0 watts and 1 percent distortion at 235.5 watts. Into 4 ohms, the amplifier reaches 0.1 percent distortion at 279.4 watts and 1 percent distortion at 339.2 watts.

Five channels driven continuously into 8-ohm loads:
0.1 percent distortion at 146.1 watts
1 percent distortion at 184.6 watts
All channels driven continuously into 8-ohm loads:
0.1 percent distortion at 141.2 watts
1 percent distortion at 169.3 watts
Me gustan estas gráficas, ¿donde se pueden consultar?.

Son gráficas de distorsión, pero no te dicen la capacidad real de corriente o wats continuos que son capaces de entregar, ya que vendrá también determinada por la fuente de alimentación y el consumo del propio aparato. ¿Estoy en lo cierto o me equivoco?