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Post by The Fifth Column on Dec 18, 2006 2:15:34 GMT -7
Just a prety simple question as I'm looking into Dr. Z amps and think I'm finally decided on a Maz Sr. NR head.
My question is about the speaker cabs though. I'm interested in the 2 x 12 speaker cabs. and I don't know if I was just missing it on the site, but what is the impedance on those cabs?
Why I ask is because I use a hotplate to keep from going deaf because I like pushing those power tubes, but mine is a 16 ohm. Now everything I've read about the Maz Sr head says it has 16 ohm out, which makes sense, but I couldn't find the rating for the cabs. Are these 8 ohm cabs? I'd rather not get an 8 ohm hotplate too...
I've also seen in this forum people talking about a y cable for using two speaker cabs. The hotplate has two speak out so could I run two 8 ohm cabs with the two outputs of the hotplate and end up with a total of 16 ohms like I was using the y cable?
Any information is appreciated as it'll probably determine if I get the speaker cab at the same time as the head or wait and get a pair of them and work with the 16ohm 4 x 12 I have now till then.
Dave
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Post by mward on Dec 18, 2006 6:51:03 GMT -7
I think you can order the cabs with whatever impedance you need but don't quote me on that. I build my own cabs so I wire them up how I need them to be.
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Post by benttop (Steve) on Dec 18, 2006 6:59:33 GMT -7
The two jacks on the back of the Hot Plate are in parallel, so putting two 8 ohm cabs in there would give you 4 ohms.
Just order the cab with 16 ohms. If you want to run two cabs, you're going to have to ditch the hot plate or run it unmatched. Ed DeGenaro of THD says you can do that a bit with the hot plate. The amp sees the Hot Plate impedance (16 ohms) but is affected by the speakers, so you wouldn't want to go lower than 8 ohms on the Hot Plate output (that would be two 16 ohm cabs). Doing that changes the effect of the switch though - you no longer have 4db per click.
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Post by billyguitar on Dec 18, 2006 8:41:49 GMT -7
If you find a 4 ohm 2x12 cab you could rewire to 16 ohms very easily.
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Post by skydog958 on Dec 18, 2006 13:41:08 GMT -7
That'd be switching two 8 ohm speakers from parallel to series, right?
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Post by The Fifth Column on Dec 18, 2006 13:56:02 GMT -7
Ok, all of this makes sense and I don't think I'd have a problem rewiring a cab. I should have realized that the two outputs on the hotplate were in parallel, that makes far more sense.
I've read some things about using a hotplate of higher impedance value than either the cab or the amp setting (I can't remember which) a while back. I seem to remember it saying you can safely run a hotplate of higher value but not one of lower. Definitely don't quote me on that because I can't remember it exactly. I think thats what you're talking about benttop.
I'm fine with one cab, it would have just been fun to run two separated so a neat stereo image type of effect.
Its looking like for the time being I'm going to have to wait on the cab anyways. If I can afford two cabs in the future I'll probably be able to afford an 8 ohm hotplate too and run to 16ohm cabs in parallel through the hotplate. That should give me a total load on the amp of 8 ohms from the hotplate, and then a matching 8ohm speaker load...right?
Thanks for the advice everyone. I gotta say, this is probably one of the most knowledgeable guitar and amp forums I've seen, not that I've seen many, but still you people know your stuff.
Dave
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Post by benttop (Steve) on Dec 18, 2006 15:12:41 GMT -7
Ok, all of this makes sense and I don't think I'd have a problem rewiring a cab. I should have realized that the two outputs on the hotplate were in parallel, that makes far more sense. I've read some things about using a hotplate of higher impedance value than either the cab or the amp setting (I can't remember which) a while back. I seem to remember it saying you can safely run a hotplate of higher value but not one of lower. Definitely don't quote me on that because I can't remember it exactly. I think thats what you're talking about benttop. I'm fine with one cab, it would have just been fun to run two separated so a neat stereo image type of effect. Its looking like for the time being I'm going to have to wait on the cab anyways. If I can afford two cabs in the future I'll probably be able to afford an 8 ohm hotplate too and run to 16ohm cabs in parallel through the hotplate. That should give me a total load on the amp of 8 ohms from the hotplate, and then a matching 8ohm speaker load...right? Thanks for the advice everyone. I gotta say, this is probably one of the most knowledgeable guitar and amp forums I've seen, not that I've seen many, but still you people know your stuff. Dave Well you have most of it right, but running two cabs from one amp won't give you a stereo effect. You need two separate amps driving them to get true stereo. Not that two cabs can't be cool - it can be very cool, but just not stereo.
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Post by The Fifth Column on Dec 18, 2006 20:36:18 GMT -7
Cool, yeah the more I thought about it I kind of figured that "stereo" was not the correct term for that.
Oh well, thanks again.
Dave
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Post by guitarboy02451 on Dec 23, 2006 9:08:01 GMT -7
would the z-match work for his application? taweber.powweb.com/store/zmatch.htmAs far as cabs go, I tried several and ended up with the matching Z-Best cab. It was the best sounding cab of them all.
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