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Kevin Scott View Drop Down
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    Posted: 12 May 2019 at 11:58pm
Hello,

I have a Yamaha 512 mixer amp, which is rated at 8 ohms. I am using it to run two Celestion SR3’s, also rated at 8 ohms. I link the speakers together. 

I was thinking about getting some Celestion SR1’s, but I see these are 4 ohm. Would these work?

Regards
Kevin 


Edited by Kevin Scott - 13 May 2019 at 12:00am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Conanski Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 1:32am
What us the exact model number for the mixer?

Some of these are rated for 4ohm loads so you could safely run a pair of 8ohm speakers daisy chained together but not a pair of 4 ohm boxes unless the unit has 2 separate amp outputs... which isn't the same as 2 speaker connectors.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin Scott Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 7:02am
Hello

It an EMX 512SC

Regards
Kevin
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 9:44am
From the specs I can find, the mixer has 2 onboard amps that will drop to 4 ohms, so you should be ok with the Celestion SR1 speakers.




Edited by Earplug - 13 May 2019 at 9:46am
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Kevin Scott View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin Scott Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 10:17am
Thank you,

Would I plug one speaker into each output?

Kevin
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 3:09pm
Originally posted by Kevin Scott Kevin Scott wrote:

Thank you,

Would I plug one speaker into each output?

Kevin



Yes, that would be the idea! That way you get best use of the available power, etc.   Smile

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin Scott Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 3:14pm
Thanks again.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cuivenion Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 3:42pm
There was an 8 ohm variant of the SR1 as well.
help!!!!!!!!!!
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Kevin Scott View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin Scott Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 4:01pm
Being a layman as far as ohms go, why are there so many different ohm settings on different equipment? Surely it would make more sense, and company’s would sell more products, if everything worked with everything.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote odc04r Quote  Post ReplyReply Direct Link To This Post Posted: 13 May 2019 at 5:03pm
Everything does work with everything, it is just a question of for how long.

Even x Ohms is a strong simplication, when you look at an enclosure resistance as a function of frequency. It is just a guideline.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 14 May 2019 at 9:15am
Originally posted by Kevin Scott Kevin Scott wrote:

Being a layman as far as ohms go, why are there so many different ohm settings on different equipment? Surely it would make more sense, and company’s would sell more products, if everything worked with everything.


Actual "Ohm Settings" is more a leftover from valve amps, which had/have transformers on the output and need to be matched for different speaker ohmage.

Simplifying a bit, modern amps are limited by the amount of current they can provide (and heat dissipation), so are designated with a minimum ohmage they can (safely) drive as the lower the impedence, the higher the current that will flow for any given voltage.


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