The sunn Forum
Sunn Musical Equipment => Q & A => Topic started by: AuRevoirit on August 28, 2012, 05:55:42 pm
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My Sunn 6x10 is 6 ohms and ive been running a sentura II through it for probably too long now. the sentura is 16 ohms and can be split into 8 but im trying to rewire the cab to 16 ohms. now someone mentioned something about resistors to me and the possibility of changing them. im not the savviest when it comes to gear so my question is, do i need to change the resistors on the cab? (if that is even a thing)
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I think your only impedance wiring options, assuming the cab is loaded with 8 ohm drivers are;
48 ohms Series, 12 ohms S+P, 5.3 ohms P+S, or 1.3 ohms Parallel.
Your cab shouldn't have resistors in it, if it does I would get them out.
Although the measurements are in ohms for both fixed resistors and loudspeakers, resistance and impedance aren't the same exact concept, and fixed resistors really won't help you in your quest to change your cabs impedance.
This topic has just been discussed in previous threads, try a search. If you find a dead link let myself or one of the other mods know and we can fix it for you.
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Your best option is to use the Weber WCZ-100. You can change the cabinet to 2, 2.6, 4, 8 or 16 ohms. Connect the cabinet to the 5.3 ohm tap and then connect the amp to the tap of your desired impedance. You can mount the transformer inside the speaker cabinet, inside your amp, or build an outside box to house it. There is also a 50 watt version, WCZ-50.
Link: https://taweber.powweb.com/store/magnetic.htm
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what me and a friend were talking about was wiring the bottom 4 speakers in parallel so they equal 8ohms and then the top two in parallel so they equal 8 and then combine the two into series parallel so that its equal to 16 ohms? haha im still trying to grasp the concept of all of this even though it has been explained a couple times to me
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what me and a friend were talking about was wiring the bottom 4 speakers in parallel so they equal 8ohms
That would be 2 ohms.
... and then the top two in parallel so they equal 8
That would be 4 ohms.
... im still trying to grasp the concept of all of this even though it has been explained a couple times to me
Keep trying, you aren't there yet.
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Doesn't the Sentura II have 16, 8 and 4Ω taps on the OT? If so I'd leave the cab alone and set up the amp to run 8Ω.
If the OP is currently set up with the 16/8Ω taps can't he just plug into the "external speaker" jack only and run at 8Ω? (in which case a 6Ω cab would be fine). No changes of any kind required?
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6 ohm cab? or is that an actual reading of what is really an 8 ohm nominal cab?
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6 ohm cab? or is that an actual reading of what is really an 8 ohm nominal cab?
Sunn advertised the cabinet as 6 ohms nominal. The drivers are wired as three series pairs (16 ohms per pair) in parallel, for a calculated impedance of 5.3 ohms. 6 ohms isn't much of a stretch, but 8 would be.