I bought a used Sonosax SX-M2 last Fall and have been having a weird problem with it lately. I use both Duracell and Energizer batteries and both seem to work fine, but twice now Ive run into the same problem. I put a brand new set of Duracells in on Friday night and about 40 minutes into the show, the low battery lights were blinking and the signal was dead. The exact same thing happened back in January except it died after about 20 minutes. Both times the batteries were brand new and straight out of the package. When it died on Friday, I put new batteries in and everything worked fine and I ran the pre for a good 2 hours+ non-stop. I bought both sets of batteries at the same time for Friday night, both Duracells.
Anyone have any idea what is going on here? I think it's time to invest in a new power supply for my Sonosax.