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Post by robertlucas on Feb 27, 2014 15:44:38 GMT -7
Hi all,
I have a 2 x 12 closed cabinet @8 Ohm and the DR Z 4 x 10 cabinet @4 Ohm. Can I connect them both at the same time using the 8 Ohm and 4 Ohm output on the amp? Or can I use only 1 output ?
Thanks for your reply!
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Post by headshrinker (Marc) on Feb 27, 2014 16:13:32 GMT -7
First of all you can never use more than one output at a time. Second if you run 4 ohm and 8 ohm together in parallel you get 2.67 ohms which is too low to run from any output. The formula for figuring the impedance is to multiply the two together and then divide that by the sum of the two. You could get a series y cord and then you would have 12 ohms and could run out of the 8 ohm tap. See Todd at PCNS cables to hook you up. www.greatcables.us
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Deleted Member
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Post by Deleted on Feb 27, 2014 16:19:02 GMT -7
^^^ Oooooo--series Y cord! Might have to try dat.
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Post by nocasterman on Feb 28, 2014 16:48:58 GMT -7
I picked up one of these cables from the fine folks at Humbucker Music and have been having a blast trying different combinations. I had two 1x12 cabs with golds in them hooked up to the EZG......sounded amazing!! I did every kind of combination I could between my cabs, really fun hearing all the differences and being surprised when something sounds better than you thought it would. www.humbuckermusic.com/cuspcafordrz.html
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Post by robertlucas on Mar 25, 2014 23:17:40 GMT -7
Thanks! Are you sure that connecting 12 Ohm speaker setup to the 8 Ohm output isn't a mismatch which could eventually ruin my EZG?
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Post by bryan0418 on Mar 26, 2014 3:45:18 GMT -7
You won't hurt your amp hooking up a 12 ohm load to your 8 ohm output. You can always have more load than the output but never the other way. Perfectly safe to do. Have fun.
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Post by zpilot on Apr 1, 2014 2:45:57 GMT -7
First of all you can never use more than one output at a time. Second if you run 4 ohm and 8 ohm together in parallel you get 2.67 ohms which is too low to run from any output. The formula for figuring the impedance is to multiply the two together and then divide that by the sum of the two. You could get a series y cord and then you would have 12 ohms and could run out of the 8 ohm tap. See Todd at PCNS cables to hook you up. www.greatcables.usThe formula for impedance in parallel is the same as capacitance in series. The total impedance is equal to the reciprocal of the sum of the reciprocal of the individual cabinet impedances. In this case 1/4 + 1/8=3/8. The reciprocal of 3/8 is 8/3 or 2.67.
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