I've got an EDA 2100 that quit amplifying the signal, which I am sure has mostly the same internals as the EDA 2400. The power adapter gets hot and when you shake it hot, you can hear the internals rattling around, which doesn't happen when cold.
I was wanting to use a switched-mode power supply with it for efficiency and stable voltage, but 15v is an odd voltage for these. I looked around on electroline's website and google, but all I can find besides this post is their recommendation a 15v 200ma adapter be used with it. I happen to have a 12v 2amp power supply. Since U2 is an +8 voltage regulator, does that mean the EDA 2100/2400 should work fine at 12 volts?
Sorry for resurrecting a dead post, but this seemed very relevant to my question.