Card Martin AC Tone good condition, works perfectly. Vox AC 30 tones, and AC tones overdriven. The overdriven tones are overdrive, almost approaching distortion. Listen to the youtube videos. Some may be good.Use earbuds, or good speakers. I found a mini pedal that does a Vox A.C.30 and I will get that. The A.C. tone is Great in my opinion.