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Post by James on Dec 6, 2006 16:43:51 GMT -7
anyone ever blown a blue in a z 28, maz jr or giah?
Just wanna make sure 15 watts is enough
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Post by Curt on Dec 6, 2006 17:55:07 GMT -7
seems to handle the Ghia fine
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Post by Don on Dec 6, 2006 21:37:31 GMT -7
I've had my Ghia combo with the Blue really cranking a few times at some larger gigs, and no problems. Beautiful sound, too. You may feel more comfortable with the Celestion Gold that has just been released.
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Post by mudskipper on Dec 7, 2006 8:28:52 GMT -7
Z28 is rated for 22W while Ghia at 18W, are they not? it seems logical to me that the survival rate of a speaker rated for 15W is better than it would be in a 22w rated amp.
for anything above Ghia, i'd use wither 2 Blues or 1 Gold, assuming that you want get something from Celestion.
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Post by zdogma on Dec 8, 2006 7:31:03 GMT -7
The ghia is fine with the blue, even fully cranked it is safe.
The 18 watt rating of the maz is pretty conservative, it may be OK with the blue, but I haven't tried it.
I think the 22W rating of the z28 is pretty conservative as well (30-32 watts probably). I think that it would probably blow a blue. I had a z28 for a while and was never brave enough to run it through mine.
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Post by billyguitar on Dec 8, 2006 9:37:44 GMT -7
I read a while back that the parts to recone a Blue runs $140. That's before the reconer marks it up for profit and overhead and then adds labor. I wouldn't exceed the 15 watt rating by much if it was me.
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Post by skydog958 on Dec 8, 2006 16:20:55 GMT -7
I forget who posted it, but there's a video under sounds of a Z28 loaded with 2 Celestion Blues which sounded killer. Are you just going to use one?
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Post by dongiesen on Dec 8, 2006 16:54:59 GMT -7
If running 2 would they be in series or parallel? Or does that only relate to getting the ohm rating you seek
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Post by mudskipper on Dec 8, 2006 21:35:59 GMT -7
If running 2 would they be in series or parallel? Or does that only relate to getting the ohm rating you seek i'd say try both ways and decide which way you like better.
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Post by dongiesen on Dec 11, 2006 19:34:16 GMT -7
Does that mean that if your going to use 2 celestian blues (15W) that the wattage they're subjected to by the amp is now a 30W rating in both series or parallel? I understand the ohm thing and how that works but not clear on wattage
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Post by Hohn on Dec 16, 2006 0:05:22 GMT -7
Wattage is total divided by number of speakers.
Hence, a 30W amp feeding two blues means each gets 15W.
The only time the power can get screwy is if you start screwing with the speaker arrangement. Say, for example that you have one 2x12 that is 8 ohms and a 1x12 cab that is also 8 ohms total, and you decide to run both of these cabs out of your 4 ohm amp output (which is perfectly fine). In this case, the 30w would be divided equally between the two CABS, not the three speakers. So you'd have 15W going to your 1x12, but also to the 2x12. So the 2 speakers in the 2x12 would share that 15W, and see 7.5W each.
As long as you have even numbers of speakers of equal impedances, they will always see the same power, whether they are wired in series or parallel.
Justin
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Post by dongiesen on Dec 16, 2006 12:42:10 GMT -7
Thanks Hohn. Had been waiting for someone to jump in for an answer. Have a 210 setup with my 18jr but have a Gia on the way (head) and was considering a 1 or 2 12 cab for versatility. Was considering the blue for the breakup factor but thought going 2 would give me more cushion than driving to the max. Any thoughts?
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