RE: 1:10
Those speakers above, although they claim to run on a 6VDC adapter, actually run on 9VAC. Not good for battery powered mods. I also tried the "Boostaroo" headphone amp from RadioShack, but it acted more as a load balancer for plugging in 3 headphones to one device, rather than an amplifier. So, I decided I'd just up the amplification of the .MP3 files using the WavePad Sound Editor software on my computer which will amplify up to 4x over the original. I now have the tracks red lining on the volume meters of the computer, so I hope this will be good for making things loud into the speakers. I'm still working on the playlist.