stemiki
100+ Head-Fier
I don't think a device like ARC6 can bring about an improvement via battery power.These are all good points. Indeed there have been posts in other forums where batteries were used with DC4 regulators to directly power Dave but in the end they were outdone by the transformer powered ARC6 power supply. From what I have read in those posts the motive for designing the ARC6 was to achieve a better power supply for Dave than could be got with the batteries.
This is because linear power supplies, especially those with large transformers, generate a lot of EMI / RFI noise caused by magnetic interference.
While the internal SMPS, which has very small transformers, powered by battery, acts only as a current regulator to create the three lines +5 +15 -15 vdC