I've listened to both amps extensively and I give the edge to the PC5002M. They both rate with the best amps I've ever heard.The Yamaha 500WPC Amp Challenge...
I would love to test the PC5002M vs. the MX-D1...old school vs. new school.
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CDV-1700TI, CDX-2000, CDX-530TI, CX-1000U, CX-830TI, DSP–A700TI, DSP–E492, DSP–E300, DVD-S1200, DVD-S795, KX-330TI, MS101 II, MX-1, YST-M10, YST-SE10,
YST-SW1500, YST-SW500, YST-SW20
Past: NS-10MS, NS-10MC, P3500, RX730TI, WF215SB
For anyone looking for a great sounding 500wpc amp the MX-D1 has one significant advantage over the PC5002M: you can actually find an MX-D1 for sale. Good luck trying to find a PC5002M.