Exact power.....hookup question

They generally recommend plugging the SP-15 into the EP-15 so that the balanced transformers of the SP benefit from the regulated power of the EP-15. Then you should connect all of your low power components (digital, preamp, etc.) to the SP outlets but your power amps will probably sound best connected directly to the EP since it is not as current limited as the SP outlets. Good luck!

ABSOLUTELY NOT!
And that's unfortunate because it would be nice to enjoy the benefits Bill-k mentions. However, the EP-15A was built without adequate turn-on protection circuitry, and if you turn it on at the 'wrong' point in the 120VAC power cycle with the SP plugged into it in the on position, then the big toroidal transformer in the SP (along with any switched on equipment plugged into the SP) will put too large a current draw on the EP's internal components and fry them.

In fact, even if you have the SP in the 'off' position and all attached equipment to both the EP and SP in the 'off' position as well, fuses will blow (or worse!) as soon as you attempt to turn on the SP

I know it says (even recommends) that you can/should use them together in the manual, but in reality it's a no-no! 2 years ago when I was in touch with him, the new owner of the Exactpower name and patents talked about a bullet-proof, high capacity EP-20A, which because of the patented feed-forward circuitry would blow all other such equipment off the map. So far that hasn't materialized.

OK, if Nsgarch says it's a no-no then I yield to his experience and expertise. My recommendation was based on the manufacturer's own guidance which was provided in their documentation. Just as a point of interest Exact Power did manufacture a 20 amp version of the EP at one point, but it was almost twice as expensive as the EP-15 and physically much larger and heavier.

NsGarch and Bill_K......thanks for the posts. Looks like I will use them independently with seperate outlets. Based on what I have read it is generally better to hook up the source components to the SP-15a and my tube monoblock amps to the EP-15a.

If either of you have different thoughts on which components to either unit, let me know.

Best regards,
Dave