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General Discussion / Re: hooking up the crown amp to my cube base augmentor
« Last post by Luddite on Today at 12:04:26 AM »Capt. Z, I agree with your instructions to vrod, except that Ed's "normal" Magic Cables used a 10K resistor per channel, but in this thread from 2013 https://tubehifi.websitetoolbox.com/post/Subwoofer-Project-6426090?&trail=135 Ed recommended using a 600 ohm resistor per channel when used with the Crown XLS series of amps.
Vrod, measure the resistance of your Magic Cable(s). If they're approximately 600 ohms you don't have to do anything except hook them up off your main amp's speaker terminals, as Capt.Z suggested. If they measure closer to 10K ohms, you may want to either change the resistors to 600 ohm, or just build yourself a new set of Magic Cables.
Oh, and one more thing. If you're going to bridge your Crown to take advantage of the 1550 watts (and you really should!) your XLS-1502 is capable of bridged, then you're going to need a Y RCA (two female to one male) adapter. The Magic Cable male RCAs will plug into the adapter, and the adapter into Channel #1 of the Crown, then select Bridged mode from the main menu.
Here's a link to the Crown XLS owners manual, if you don't have it. Refer to page #7 for connecting a single sub (your Cube) in bridged mode. https://www.crownaudio.com/en/product_documents/5055568_xlsdc2_mnl_print_050615-pdf-3c14253d-8643-4157-ba5d-cee9232d2a32
Vrod, measure the resistance of your Magic Cable(s). If they're approximately 600 ohms you don't have to do anything except hook them up off your main amp's speaker terminals, as Capt.Z suggested. If they measure closer to 10K ohms, you may want to either change the resistors to 600 ohm, or just build yourself a new set of Magic Cables.
Oh, and one more thing. If you're going to bridge your Crown to take advantage of the 1550 watts (and you really should!) your XLS-1502 is capable of bridged, then you're going to need a Y RCA (two female to one male) adapter. The Magic Cable male RCAs will plug into the adapter, and the adapter into Channel #1 of the Crown, then select Bridged mode from the main menu.
Here's a link to the Crown XLS owners manual, if you don't have it. Refer to page #7 for connecting a single sub (your Cube) in bridged mode. https://www.crownaudio.com/en/product_documents/5055568_xlsdc2_mnl_print_050615-pdf-3c14253d-8643-4157-ba5d-cee9232d2a32