maybe i should start a diff topic but this is exactly the same batt box as i have. long story short i used the plug in power on my Tascam DR-05 and i notice its a truer direct sound using the PIP compared to the SP-SPSB-6 module. i get more high end and less bass with the batt box. yes, it is the roll off type but i had the roll off set to 16hz which is no roll off as it says.
is that common with batt boxes ? or maybe i just need one without any roll off settings at all ? i dont really need roll off anyway cause i like my recordings fuller then not. when i bought it years ago i thought why not but it turned out i didnt really need it.
anyway, just stuff im noticing now im using a digital recorder with PIP. its a purer sound for sure. the risk of distortion sucks though and i cant buy ten diff batt boxes to see. just curious of others experiances with such things.