OK I was told by some one who I got that Bogen MX60 from that IF I take out the Low impedence transformer that plugs in for each mic input it will change the circuit from Low Impedence to High Impedence. True or False? I do not want to unplug one of those filters and find out it will cause issues with the amp. Three of the transformers look like short metal tubes that are rounded on top the other looks like a metal cap can. If this was the case then I could hook up a quarter inch jack for a guitar input with out getting a low to high impedence adapter and a female to female plug to hook it all up since Bogen had the brainstorm of using a male 3 prong input instead of a female one.