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Home Theater virgin


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#41 of 211 csh

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Posted November 15 2013 - 12:28 PM

The primus is    93db and goes upto 200W

Pioneer is rated 97db and goes upto 130W

 

Difference is 6db. So does this mean that if both are powered by the same AMP at 90W the Primus will sound 4 times as loud as the Pioneer? 



#42 of 211 schan1269

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Posted November 15 2013 - 12:37 PM

The Pio is not 97.

Thought it was 86.
But yes...the Pio AJ needs a more power.

#43 of 211 csh

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Posted November 15 2013 - 12:41 PM

Soory i mean Pioneer is 87 so there is a 6db difference.

So will the primus really sound 6 times louder at the same power input level?



#44 of 211 schan1269

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Posted November 15 2013 - 12:50 PM

We actually like to phrase it more as the Pio will require 4 times more power.

Remember 3db is twice.

#45 of 211 csh

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Posted November 15 2013 - 12:51 PM

ok understand... will stick to primus as the basement is large...



#46 of 211 csh

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Posted November 15 2013 - 01:22 PM

Check this out: http://www.audioholi...63-measurements

 

So these and the pioneers are the same except the primus can handle more power.. but i will haave to look at a 4ohm amp


Edited by csh, November 15 2013 - 01:30 PM.


#47 of 211 schan1269

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Posted November 15 2013 - 02:07 PM

Onkyo and Yamaha(rx-v6xx and up)/rx-a won't have a problem.

#48 of 211 csh

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Posted November 15 2013 - 03:38 PM

That's fine but aren't these as loud as the pioneer because of the low impedance and resulting lower sensetivity

#49 of 211 schan1269

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Posted November 15 2013 - 03:49 PM

What Audioholics is leaving out(cause it is a steep learning curve)...

 

Ohm load is not a constant. I wish all speaker manufactures would move to sensitivity at 2.83 volts(cause then, ohm load doesn't matter...provided voltage is all you care about. Then the wattage consumed is the other side of the equation of volt/ohm).

 

Since a speakers frequency response and ohm load never "mesh"...your point about "reality being 87db if this were an actual 8ohm speaker"(as Audioholics "correctly" says) is a  completely bogus assumption.



#50 of 211 csh

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Posted November 15 2013 - 03:54 PM

So whats the real sensitivity?

#51 of 211 csh

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Posted November 15 2013 - 03:55 PM

I am confused you are saying aydioholics is correct and then saying bogus assumption

#52 of 211 schan1269

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Posted November 15 2013 - 03:56 PM

Feed it a 2.83 volt signal and tell us.

 

By the way, the Pio AJ is a 6 ohm rated speaker...not 8.



#53 of 211 schan1269

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Posted November 15 2013 - 03:59 PM

Audioholics isn't running 100 watts into the speaker. Not all amps double power at 4 ohm.

 

So...if you have an amp capable of 100 watts at 8ohm, and 130 at 4 ohm...then the difference of 92 at 8 ohm or 89 at 4 ohm is a moot point.

 

If you were hooking this speaker up to an amp that could actually deliver 100 at 8 and 200 at 4...then it matters.

 

Are you buying an amp capable of that?

No.



#54 of 211 csh

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Posted November 15 2013 - 04:04 PM

Now am totally cobfused (not your fault but mine)
I am looking at either the 717 or 727 amp

#55 of 211 schan1269

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Posted November 15 2013 - 04:12 PM

Here is the 727...

 

http://us.onkyo.com/...ource=prodClass

 

Dynamic(which is not RMS) power at 8 ohm is 130w.

 

Dynamic at 4 is 220...but one channel only.

 

Then it gives a 3ohm rating of 250 on two channels.

 

So, no. The 727 does  not double power at 4 ohm. But it won't have a problem.



#56 of 211 csh

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Posted November 15 2013 - 04:17 PM

So with the 727 will there be a difference in loudness between the pioneer and primus
How much difference

#57 of 211 schan1269

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Posted November 15 2013 - 04:18 PM

Also, if you notice it chews 6.9 amps. 6.9 x 120 = 828

 

subtract out the 80 the video uses...748.

 

divide that by 2(amp loss)...374.

 

374 /5 is 55 per channel.



#58 of 211 csh

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Posted November 15 2013 - 04:20 PM

Can you recommend a more powerful amp in the same price range



I owe you a gift card after this is over :-)

#59 of 211 schan1269

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Posted November 15 2013 - 04:20 PM

So with the 727 will there be a difference in loudness between the pioneer and primus
How much difference

 

You have 55 watts per channel be it 1 ohm or 16. The AVR itself provides a voltage which your speakers reply with an ohm load to come up with watts.

 

The "watts" (which results in how fast out of the AVR the voltage flows...hence the faster it flows, lower ohm, the more power is drawn off the provided voltage) is 55 regardless.



#60 of 211 schan1269

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Posted November 15 2013 - 04:31 PM

Can you recommend a more powerful amp in the same price range



I owe you a gift card after this is over :-)

 

Onkyo's at every price pull more power than everyone else. Yamaha does not list it.

 

Pioneer/Elite use class D which is 70% efficient, instead of the presumed 50% of everyone else.

 

But yeah, how much power an AVR sucks off the wall is about the only indicator of real power. Obviously a low end Sony that says 100x7 and pulls 300 watts off the wall...the math doesn't add up.






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