Hey I was searching for info on ERB's and came across some of your youtube videos. Can you give me some general knowledge on the super low contra bass notes? I remember you said your lowest note on your 12 sting C# registers at 6 hz and speakers can't move slow enough to make that note or something like that? I'm not really interested in going that low, I'm thinking around one octave lower than a standard 4 string E. As you can probably guess I'm trying to get a bass one octave lower than my 8 string guitar. I know you need a speaker that handles that low of frequency. I understand how you feel it more than you hear it. And you can do certain things to make it more heard than felt. I find if I crank up any EQ settings I have available I can get the low F# or F or E to be heard more instead of just being a low freq noise. Sorry if I sound like a noob or something but I'm new to this subject. I'm going to try learning about speakers that handle 20 hz now lol.