7293 parrallel or bridge/paralel for best sound?

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Class G on music

Some oscilloplots of class G with music on inputs.

The source was a out of onboard sound using high quality audio CD on cd-rom.

In some pictures the output power (on 8Ω resistiv) are ploted, both Pk-Pk and RMS power.
The high ration between RMS and PK-Pk can be seen for music
 

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