ohm's

Robert Thomas · Post by **Robert Thomas** » 21 Jul 2004 4:11 pm

I have used 4-12", Jensen 16 Ohm speakers in my speaker cabinets for over 30 years. No problem, but it seems that many others use 8 ohm or 4 ohm speakers. Am I missing something by using 16 ohm rather than 4 or 8 Ohm speaker? If so, what?

Ray Minich · Post by **Ray Minich** » 21 Jul 2004 5:22 pm

Depends on how you have them wired. Two sets of two wired all in parallel would give you a 4 ohm load. No problem. Maximum energy transfer & conversion, output impedance matched to load. Good to go.

Now if you have them wired all in series that's another story

I should add that this assumes your amplifier output section is designed for the typical 4 ohm load.[This message was edited by Ray Minich on 22 July 2004 at 07:55 AM.]

Roger Kelly · Post by **Roger Kelly** » 22 Jul 2004 5:10 am

It also depends on the load rating of the Amplifier you are using. If you are using an Amp whose Rating is say.... 200 Watts @4 ohms, you would not be getting all the power transfer to your speakers if you used a speaker hook-up combination of 8 or 16 ohms total. In cases where you use a 4 speaker cabinet, you may not be able to tell any difference in the loudness, if the speakers are 8 ohm total, and your Amplifier is rated for a 4 ohm speaker load.
Here is link that explains it in more detail. http://wolfstone.halloweenhost.com/TechBase/spkimp_SpeakerImpedanceMatching.html [This message was edited by Roger Kelly on 22 July 2004 at 01:54 PM.]

Bill Crook · Post by **Bill Crook** » 22 Jul 2004 6:04 am

This is a fact......

The higher the DC ohmage is, the muddier the sound will be. Hi ohm speakers do not reproduce the high frquency stuff too well.

For a test, put a 16 ohm device into a 2 or 4 ohm amp.(It won't hurt the amp)play a bit, then put the 2 or 4 ohm device back in. you will see a big difference.

Been There.... Tried it ....... Known Fact

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Robert Thomas · Post by **Robert Thomas** » 22 Jul 2004 7:11 am

Thanks for your input, all of you.
I drive my speakers, which are wired parallel, with a 150 watt Peavey, so as I understand it I am doing okay. Right?

Darvin Willhoite · Post by **Darvin Willhoite** » 22 Jul 2004 7:21 am

I noticed on the back of my Mosvalve 500 power amp, that there is a note that says something like "8 ohm speakers are recomended for a more musical sound". The amp is rated for 4 ohm output. Why do you think this is? Does Mosvalve think a darker sound is "more musical"?

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Darvin Willhoite
Riva Ridge Recording