I inherited the above mentioned Amp through abandonment 4 years ago. The Amp works well on earphone. but when the earphone plug is removed. no sound from the speaker. I opened the amp up and found a electrolytic cap that needed replacing. When I reassembled the amp, the earphone worked and when you play a string with the earphone plug out. It would momentarily sound through the speaker, but would cut out within a second. It would not sound again until you cut the amp off and started it again. Same results. Any Ideas. I understand the Amp has DDT tech. I just wanted to air the situation before an experienced group before I take it in for repairs. IJ was never able to find a schematic for the Max Bass 112 amp. One was available for the Max 112 DDT but under scrutiny it is not the same amp.