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Post by drew on Apr 5, 2006 14:07:53 GMT -7
I have a Route 66 and am using a Dr Z 2x12 8 ohm cabinet. When reading the ohms with my multimeter it reads approx. 6.7 ohms. I understand that multimeters read lower than the actual ohms. I'd like to try my peavy 4x10 cabinet with the 66. It's my understanding that it's a 16 ohm cab. The multimeter reads 11.7 ohms. I don't want to hurt the amp, which ohm output (4, 8, 16) should I use on the Rt 66?
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Deleted
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Post by Deleted on Apr 5, 2006 14:10:51 GMT -7
Hi Drew, if the cab is rated for 16 ohms then you want to use the 16 ohm input on the amp. After trying out a Delta88 I have been gassing for one or a Route66. Let me know how it sounds with the 4x10. I am sure it will be smokin.
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Post by billyguitar on Apr 5, 2006 14:15:04 GMT -7
Meters always read about a third less than what the impedance actually is. Not sure of the explanation but that's the way it works.
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Post by kruzty on Apr 5, 2006 14:16:25 GMT -7
You should use the output with the value just above the speaker rating. In this case you have 11.7, so 16 is the next highest value on the amp.
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Post by myles on Apr 5, 2006 15:39:36 GMT -7
Meters always read about a third less than what the impedance actually is. Not sure of the explanation but that's the way it works. It has to do with many things ... speaker are an iductive load and the "nominal" impedance of a given speaker is all over the place depending on the frequency. Look at how the impedance changes here from about 8 to 50 ohms.....
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Post by benttop (Steve) on Apr 5, 2006 16:09:07 GMT -7
I have a Route 66 and am using a Dr Z 2x12 8 ohm cabinet. When reading the ohms with my multimeter it reads approx. 6.7 ohms. I understand that multimeters read lower than the actual ohms. I'd like to try my peavy 4x10 cabinet with the 66. It's my understanding that it's a 16 ohm cab. The multimeter reads 11.7 ohms. I don't want to hurt the amp, which ohm output (4, 8, 16) should I use on the Rt 66? Your multimeter is reading DC Resistance. A speaker is rated at x ohms impedance, which is AC Resistance. AC resistance, or impedance, has one more variable, namely frequency. I do believe most speakers are rated at 1 Kilohertz. So that's why you get a different reading on your DC Ohm Meter. Go with the labeling, it's all you have to go on.
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Post by drew on Apr 6, 2006 22:48:33 GMT -7
Hey Aruntang. I gave the Peavey 4x10 openback cabinet a try with my RT 66 today. While is sounded OK, it lacked the bottom and richness of the Z 2x12. It was also a bit nasally in the midrange. Kind of like the Peavy Classic 50 amp. Hummmm... I'm sure a set of Z 410 would sound much better.
Take Care, Drew
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Post by Deleted on Apr 6, 2006 22:52:27 GMT -7
Yeah, I guess thats why they call it a Z- Best!
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