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Post by Stylemaster on Apr 25, 2008 11:26:51 GMT -7
I would only use it in a 112 cab for now with a MAZ Sr. head.
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Post by kruzty on Apr 25, 2008 11:39:51 GMT -7
Does the Sr. even have a 16ohm output tap? I know my Jr. only has 4 and 8. I would get the 8, even if it does, just because 8 is the most prevelant output impedance.
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Post by Stylemaster on Apr 25, 2008 12:39:46 GMT -7
Does the Sr. even have a 16ohm output tap? I know my Jr. only has 4 and 8. I would get the 8, even if it does, just because 8 is the most prevelant output impedance. Yeah, the MAZ has a 16 ohm output tap.
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Post by benttop (Steve) on Apr 25, 2008 14:09:16 GMT -7
I've seen it reported here that the 15 ohm ones are sometimes more money. Other than that, there really isn't anything that drives you to one or the other. But 8 ohms is easier to deal with across the spectrum of all amps I would say. If you plan to ever use it on a different amp, 8 is probably safer as far as matching the output of some future amp.
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Post by Stylemaster on Apr 25, 2008 14:54:38 GMT -7
I've seen it reported here that the 15 ohm ones are sometimes more money. Other than that, there really isn't anything that drives you to one or the other. But 8 ohms is easier to deal with across the spectrum of all amps I would say. If you plan to ever use it on a different amp, 8 is probably safer as far as matching the output of some future amp. I knew what you're saying is true before I asked the question. The truth is that I can get the 15 Ohm one slightly used for a very good price and while I know the 8 Ohm is more practical, I'm wondering if I should snatch the 15 Ohm just to see what it sounds like with my MAZ Sr head. FWIW I don't see myself getting a 212 cab because I have a bad back and the MAZ is plenty loud enough with one speaker. I'm also wondering if 15 Ohms presents a problem since the output tap is 16 Ohms.
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Post by benttop (Steve) on Apr 25, 2008 17:17:13 GMT -7
I've seen it reported here that the 15 ohm ones are sometimes more money. Other than that, there really isn't anything that drives you to one or the other. But 8 ohms is easier to deal with across the spectrum of all amps I would say. If you plan to ever use it on a different amp, 8 is probably safer as far as matching the output of some future amp. I knew what you're saying is true before I asked the question. The truth is that I can get the 15 Ohm one slightly used for a very good price and while I know the 8 Ohm is more practical, I'm wondering if I should snatch the 15 Ohm just to see what it sounds like with my MAZ Sr head. FWIW I don't see myself getting a 212 cab because I have a bad back and the MAZ is plenty loud enough with one speaker. I'm also wondering if 15 Ohms presents a problem since the output tap is 16 Ohms. I have a 16 ohm Weber ceramic Blue Dog here and it works great on amps that have a 16 ohm tap. There is no down side to using it that way that I can think of. I'd say go for it.
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Post by Stylemaster on Apr 25, 2008 20:36:14 GMT -7
I knew what you're saying is true before I asked the question. The truth is that I can get the 15 Ohm one slightly used for a very good price and while I know the 8 Ohm is more practical, I'm wondering if I should snatch the 15 Ohm just to see what it sounds like with my MAZ Sr head. FWIW I don't see myself getting a 212 cab because I have a bad back and the MAZ is plenty loud enough with one speaker. I'm also wondering if 15 Ohms presents a problem since the output tap is 16 Ohms. I have a 16 ohm Weber ceramic Blue Dog here and it works great on amps that have a 16 ohm tap. There is no down side to using it that way that I can think of. I'd say go for it. I recently got a Weber 50 Watt, 50 oz. magnet, 8 Ohms, ceramic Blue Dog for the MAZ Sr. and it sounds great. FWIW, the Gold deal went away. GAS attack averted!
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Post by billyguitar on Apr 26, 2008 7:19:34 GMT -7
That's why it's a good price. If someone wants to use a single speaker then as Steve says, an 8 ohm is much more universally applicable. I'd pass on it myself.
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Post by myles on Apr 26, 2008 10:15:46 GMT -7
It does not matter ... pick either one. Speaker impedances are not fixed at one value. The impedance runs all over the place and the nominal impedance is the lowest impedance at a give frequency and this is the value that is specified. A 15 ohm speaker (as were the classic Celestions) is considered to be a 16 ohm speaker and you would use the 16 ohm jack on the amp. See a typical impedance curve below and look at the lower curve and see the impedance on the scale at the right at a given frequency. This is a very common "8 ohm" speaker curve than ranges from 8 ohms to about 50 depending on frequency.
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Post by billyguitar on Apr 27, 2008 13:56:31 GMT -7
Myles the mythbuster!
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Post by benttop (Steve) on Apr 27, 2008 17:01:42 GMT -7
Cool chart Myles! Notice that if you go to 1KHz and follow across you are at 15 ohms.
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Post by Phil (aka Phil) on Apr 29, 2008 4:56:57 GMT -7
My MAZ SR NR head has 4,8, and 16 ohm outputs.
My MAZ JR NR head has 4 and 8 ohm taps only.
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Post by myles on Apr 30, 2008 8:00:32 GMT -7
Cool chart Myles! Notice that if you go to 1KHz and follow across you are at 15 ohms. But that is not the "low" on the chart on this 8 ohm rated speaker ... that happens at about 250 cycles. You use the lowest point on the impedance curve. For a 16 ohm speaker the trace would not drop below 16 ohms etc.
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Post by benttop (Steve) on Apr 30, 2008 9:27:08 GMT -7
Ah, I thought it was a 15 ohm speaker.
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Post by myles on Apr 30, 2008 11:00:29 GMT -7
Ah, I thought it was a 15 ohm speaker. Not on that chart ... Each chart is different too ..... depends on the speaker as an example as well. A V30 and H30 and Greenback will not have the same curves (but they will be very close) even for the 15/16 ohm speaker which differ a bit from the 8 ohm version.
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