OmniFace Posted March 7, 2020 Share Posted March 7, 2020 Found an intermittent possible bug in the PowerCab 212 when daisy chaining two together with a Helix. I was able to reproduce almost 100% for a bit while writing this up, but then sometimes I can’t. ———— Steps: Connect guitar to Helix Connect Helix Line 6 Link out to PowerCab 1 Line 6 Link in using an AES/EBU cable Connect Line 6 Link Out on PowerCab 1 to PowerCab 2 Line 6 Link in Power Helix On, then PowerCab 1, then PowerCab 2. Turn volume up in both PowerCabs to half, and turn up the volume on the Helix to whatever. Make sure both have sound. Turn the volume on PowerCab 1 down to zero and verify PowerCab 2 still has sound. Mute the guitar. Continuing to play appears to negate the issue. Turn the volume on PowerCab 2 down to zero and wait 5+ seconds. Turn the volume on PowerCab 2 back up and wait 5+ seconds. Now try to play guitar. Result? No audio. No signal indicators on the PowerCab 2. PowerCab 1 appears to stop sending signal. Green signal lights appear on PowerCab 1, and turning the volume up works. Restarting PowerCab 2 does not restore audio. You must restart PowerCab 1, and then audio on PowerCab 2 will work again. —————— I tried swapping the order of the PowerCabs in the signal chain and got the same result. Whichever amp is in the middle of the Helix and the other stops sending signal when the volume is set to zero, and nothing comes in to the amp for a bit, but only if the second cab is also set to zero briefly. ————— This is a minor issue, but may you have to restart your PowerCabs between sound check and your show. Or make sure you never set the volume to zero on the amps themselves. Ran into this the first few times I played with the amps live, and thought maybe I had to start them in a certain order. I was playing withy two amps today and investigating a new rattle, and I’ve figured out what’s actually going on for this problem. Quote Link to comment Share on other sites More sharing options...
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