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CM-5018 Power amplifier module / Monoblock. (Formerly CM-5017) Connections CM-5018 has an 8-way terminal:
A. Plus 30-35V
B. Input signal C. Input ground D. Signal ground from PSU E. Loudspeaker plus F. Loudspeaker minus G. Power (and loudspeaker) ground from PSU H. Minus 30-35V. Transformer: Primary voltage according to your need. Secondary voltage:
2 x 22 - 2 x 24VAC F1 = T1.6 fuse for 220 - 240 VAC mains voltage, T3.2 fuse for 110-130 VAC mains voltage. C1 = C2 = 6600 uF or more, 50 VDC or more*. F2 - F5 = F1.6A fuses *) In the Poweramp 5 PSU we use 6 x 2200 uF instead of 2 x 6600 uF (or more) for smaller height and increased max ripple current. As you can see, the PSU is very simple, just a transformer, rectifier diodes, capacitors and fuses.
The CM-5018 is quite insensitive to the ripple from the power supply, so this all you need. (If an amplifier needs a complicated PSU, it is probably a bad amplifier design.) The drawing above, as a printable PDF file, click here. If you have some experience from electronic projects, building a high quality amplifier with the SQ-5018 modules should be a simple task. |