Another matter I would want to address and it seems a lot of people are confused as well.
I have seen it asked from time to time. Could I use a battery Pack of 15V-DC and run the M17 in Enhanced mode ? Or PSU mode ?
Well, I am not sure if someone has tried it, because
Voltage is Voltage the M17 or any electrical devices will not realize where this Voltage is coming from, whether it is Lead battery, 12V automotive batteries, or solar packs….etc….or AC-PSU.
But the one main reason why you wouldn’t want to run it off Battery packs when there is a possibility to run it off the Wall AC.
Power supply dynamic transient responses
Batteries have it own limit of the responses , which is a changes instantaneously between Loads. So a bass drops will demand a different dynamic load VS A cymbal splashes
, and the battery will have to answer to these responses. This is the dynamic transients responses limitations of batteries VS Power supplies….and also batteries VS batteries among themselves. Some batteries have better responses than others
….. hence, different batteries will sound different. Also, a new battery packs will sound different than 3 years old packs ….Yes, your DAP will sound different 3 years from now as well
. But don’t be too OCD about it yet. The largest advantages of battery packs is low floor noises, but if the power is raised up too much then you will have a lot of higher floor noises (hisses)….
My point is that, if you can run a very dedicated PSU and audiophile grades directly to feed the DAC, the LPF networks, and the Amps for M17. Please do so! Regardless of gain and or Modes. Because your M17 will be fed by a quality power supplies (or Blood)! Even among PSU designs, the different transient responses, noises, will be effecting the end performances as well