@elizabeth - that sounds right as the iFi is basically a switching power supply. I'm sure that's a big reason why melvinjames did not get an improvement with it.
That Massdrop THX AAA unit looks to require a 24V DC power supply, so you are likely going to have to have to have at least two external power supplies because this is a higher than normal voltage for these linear DC power supplies. Most small devices range 5-15V DC. Even the 200W Small Green Computer only has a 19V output (unless you can get them to custom build a power supply).
So, either a single SBooster or Teradak for that 24V Massdrop. Then you could try to find a dual-output power supply for the 12V SugarCube and the 5V Chord Qutest (with special micro-USB connector).
That Massdrop THX AAA unit looks to require a 24V DC power supply, so you are likely going to have to have to have at least two external power supplies because this is a higher than normal voltage for these linear DC power supplies. Most small devices range 5-15V DC. Even the 200W Small Green Computer only has a 19V output (unless you can get them to custom build a power supply).
So, either a single SBooster or Teradak for that 24V Massdrop. Then you could try to find a dual-output power supply for the 12V SugarCube and the 5V Chord Qutest (with special micro-USB connector).