megadams Posted July 25 Share Posted July 25 Good morning, I use my Helix in the 4 send/return cable method in my Marshall JVM410 amp head. My amp head offers me the possibility of using the effects loop at +4 or -10 dB To get the most out of my equipment and get the best sound possible 1. I would like to know if I need to configure the 1/4" outputs and send/return from my propeller to Line or Instrument? 2. I would like to know if I should I use +4 or -10 db on the effects loop of my amp head? Thank you in advance for your answer. Sincerely Quote Link to comment Share on other sites More sharing options...
Schmalle Posted July 26 Share Posted July 26 The default answer for 4CM is: Set input, output and send/return levels to INST on the Helix and use the -10dB option on the JVM. Use an empty patch, add the fx loop block, crank the VOLUME knob and test how this setup compares the pure non-4CM amp. Usually this sounds very close with an extra little hiss. Quote Link to comment Share on other sites More sharing options...
megadams Posted July 27 Author Share Posted July 27 Great, thank you for the answer ;) Quote Link to comment Share on other sites More sharing options...
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