I almost put this in the Humour forum, but I really hope someone has a suggestion. I am a plug and play kinda guy. I like to build and play with effects, but live and at practices I just go straight to the amp. So I learned U2's Vertigo. The the SansAmp really nails the bass sound, so last practice I brought it. (We practice in the drummers basement). Well it wouldn't work. I chalked it up to a dead battery and forgot about it. Well this time we learned some Neil Young, including "My My, Hey Hey" which *requires* heavy distortion Since I was bringing pedals, I decided to use some light distortion on some other songs. I ended up with the following setup: Bass -> Effector 13 Torn's Peaker -> Voodoo Labs Sparkle Drive -> SansAmp BDDI -> iAMP 500. Three pedals from three manufactures. Put new batteries in the Torn's and the SansAmp just in case. Worked great at home. At practice plugged everything in. Tested all the footswitches, yup LEDs light up. Turn on the amp ...... no sound. I tried different cables. I tried each effect one at a time. I tried the SansAmp multiple times during practice. No sound. The Torn's and the TS are true bypass. They worked when bypassed. And the Torn's made a loud pop when the footswitch was pressed, but no sound. Come back home, plug everything in, works perfectly What could be wrong? I have successfully used an OBD3, a Phat-Hed and a Bassdriver there at various times in the past. Help! I wouldn't dare try to gig with the setup when I can't trust it to work.