My AFMr and AS Pro sit side-by-side. While I had the hood up on both, I noticed they both use Mean Well Power Supplies with very different specs.

Stern Spike uses a RSP-500-48 (http://www.meanwell.com/webapp/product/search.aspx?prod=RSP-500) in the backbox and CGC uses a RS-150-12 (http://www.meanwell.com/productPdf.aspx?i=419) in the cabinet.

The Spike PS looks more powerful and uses an annoying fan to cool itself. The CGC PS doesn't use a fan, which I prefer (obviously).

Do you understand why Stern wouldn't use the quieter, less expensive PS? Both of these are available on Amazon.

I'm a musician & software guy...not very knowledgeable about electrical stuff, but curious nonetheless. Not a fan of the fan

Would love to hear from a pinball tech/architect what the tradeoffs between these 2 Power Supplies are...thanks!

snaroff

Two photos...looks like CR110 supplies the 50V?

IMG_8525 (resized).jpg

IMG_8526 (resized).jpg

Looks like CGC/AFMr has a transformer in the back of the cabinet that plugs into J104. I imagine that supplies the 50V?

I don't believe Stern/Spike has a transformer, so that may explain why they have the larger Power Supply w/fan.

snaroff

IMG_8527 (resized).jpg