I have a Technics SL-1650 and also two Micro Acoustics MA2002e cartridges, will either of them decode CD-4, or do I need to have my Dual 1229Q repaired and will I need a different cartridge? Just curious. I can't test as I don't have any CD-4 LPs and the only decoder that I have is a Marantz CD-400, working condition unknown (although I have verified that it works as a 2 channel phono preamp.) Just trying to plan my next moves. The MA2002e is only rated to 20 kHz, but then again I'm pretty sure so is the AT440MLb which is a known good CD-4 cart. I don't know if the 1650 is good either, but rumor has it that the cables that Technics used back then were low capacitance and decent quality. So maybe someone's tried it?