I used to run my D6 and H6 Pro chargers off of a 12v server power supply with 13 gauge wire...
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I don't know what your charging needs are, but if you need more than 165~168 watts/channel, invest in a DC power supply ≥24v. If you are looking to plug the charging straight into an AC outlet... you bought the wrong charger. You'll want the
D6 Pro AC/DC charger that has internal power supply.