6 ohm vs 8 ohm receiver spec

[Dazed_and_confused]

The new receiver I'm looking at (Sony STR-DN1050) with 2 channels driven into 6 ohm load and 20-20,000hz is rated at 100 watts RMS with 0.09% THD. Is it correct to adjust the power rating of the new receiver down from 100 to 75 watts RMS (6 ohm/8 ohm =.75)?

If that is correct, is 75 watts RMS enough to properly drive relatively inefficient speakers like the Pioneer FS-52's?
75 watts would still yield about 104 dB and I'm pretty sure that will be plenty loud for my 2100 cubic foot room. Will the speakers make the amp work too hard?

 

[TheWarrior]

Other way around. By decreasing the resistance ( 6 ohms is less than 8) you are allowing the speakers to draw more energy from the amp. But, the wattage increase only turns in to a very small decibel increase(what you will actually hear), that you will not really notice.

That said, 6 ohm speakers can easily be powered by practically any receiver/amp made today. So choose your model based on not just your current needs, but think about the future too!

 

[Dazed_and_confused]

Other way around. By decreasing the resistance ( 6 ohms is less than 8) you are allowing the speakers to draw more energy from the amp. But, the wattage increase only turns in to a very small decibel increase(what you will actually hear), that you will not really notice.

That said, 6 ohm speakers can easily be powered by practically any receiver/amp made today. So choose your model based on not just your current needs, but think about the future too!

Not sure if I'm hearing you correctly. From what I see, most receivers give a power spec based on 2 channels driven across 20-20,000 hz into an 8 ohm load. The Sony receiver I'm considering lists its power spec for a 6 ohm load. I'm just trying to figure out if there's a way to make an apple to apples comparison when dealing with two receivers that are using different ohms to state rated power...

 

[zieglj01]

Not sure if I'm hearing you correctly. From what I see, most receivers give a power spec based on 2 channels driven across 20-20,000 hz into an 8 ohm load. The Sony receiver I'm considering lists its power spec for a 6 ohm load. I'm just trying to figure out if there's a way to make an apple to apples comparison when dealing with two receivers that are using different ohms to state rated power...

Sony, Pioneer, Yamaha, Denon and Marantz can drive them Pioneer speakers.

The Sony was measured to do around 103.8 watts, driving 2 channels at 8 ohms

 

[Dazed_and_confused]

Sony, Pioneer, Yamaha, Denon and Marantz can drive them Pioneer speakers.

The Sony was measured to do around 103.8 watts, driving 2 channels at 8 ohms

Do you have a link to this info? I can't find it.

 

[zieglj01]

Do you have a link to this info? I can't find it.

It is here
http://www.soundandvision.com/content/sony-str-dn1050-av-receiver-test-bench

 

[Dazed_and_confused]

It is here
http://www.soundandvision.com/content/sony-str-dn1050-av-receiver-test-bench

That's perfect. Exactly what I was looking for. Thanks!

 

[Suphawut]

The new receiver I'm looking at (Sony STR-DN1050) with 2 channels driven into 6 ohm load and 20-20,000hz is rated at 100 watts RMS with 0.09% THD. Is it correct to adjust the power rating of the new receiver down from 100 to 75 watts RMS (6 ohm/8 ohm =.75)?

If that is correct, is 75 watts RMS enough to properly drive relatively inefficient speakers like the Pioneer FS-52's?
75 watts would still yield about 104 dB and I'm pretty sure that will be plenty loud for my 2100 cubic foot room. Will the speakers make the amp work too hard?

uhmm ok... simple for u to digest.
if u r looking to drive relatively small speakers. SS avr in the market now will b ok. unless u are hooking up multiple speakers from 1 channel.
power ratings & thd is what consumers will think of front end.
- 8ohm / 6ohm is the ability to handle the resistance and what had given to the load.
- watts from ss recievers will only produce 2/3 from actual.
- 2ch driven 20hz -200000hz is base on test on front 2channel. not all channel driven.
read whatever in it.
Your ears will b the judge.

 

[PENG]

Not sure if I'm hearing you correctly. From what I see, most receivers give a power spec based on 2 channels driven across 20-20,000 hz into an 8 ohm load. The Sony receiver I'm considering lists its power spec for a 6 ohm load. I'm just trying to figure out if there's a way to make an apple to apples comparison when dealing with two receivers that are using different ohms to state rated power...

It is not linearly proportional. It also depends on whether the amp is voltage or current limited, or both and then it depends on whether it is more limited in one than the other. Basically you cannot extrapolate. You could, if the amp is not V and I limited, to the point it can almost "double down".

 

[KEW]

It is disappointing to see Sony trumpeting power at 1kHz and following it with full band spec into 6ohm. Both of these are marketing strategies to inflate their numbers.
Nonetheless the abilities of the Sony's amp are fully adequate for the FS-52s.

 

[Suphawut]

sad right... even yamaha also power rated @ 8.... 6... 4ohms... among affordable consumers product Anthem is the brand i still prefer. no feature only performance

 

[PENG]

sad right... even yamaha also power rated @ 8.... 6... 4ohms... among affordable consumers product Anthem is the brand i still prefer. no feature only performance

Not really, dollar for dollar Yamaha, Denon, Marantz all beat Anthem's on the bench, not just the advertised outputs. Of course one can prefer a specific brand, but if I were to prefer Anthem, it wouldn't be for power output.

 

[Suphawut]

go try playing jus 2channel... i didn't like it at 1st
..untill.....

 

[Suphawut]

ī played on a cinema CT... compare to Aventage... details cant be found in yamaha onkyo denon hk. too bad Anthem does not have any Pure Audio mode.

 

[PENG]

ī played on a cinema CT... compare to Aventage... details cant be found in yamaha onkyo denon hk. too bad Anthem does not have any Pure Audio mode.

Okay, I thought you were talking about power output. For sound quality, it is subjective, and depends on many factors unless you compare them all in pure direct. Even then you can't remove bias unless you do blind tests. I like Anthem too and I do have a power amp for the L/R of my HT system but I could have easily do without it as I have the 8 channel power amp already. It is there not doing anything so I use it, no audible sound quality difference at all.

 

[KEW]

sad right... even yamaha also power rated @ 8.... 6... 4ohms... among affordable consumers product Anthem is the brand i still prefer. no feature only performance

Actually, I love it when a company cites capability at 8, 6, and 4 ohms.
Not every amp can handle 4 ohms, so this is useful information.
It is just that the 8 Ohm value is the FTC standard and ideally, should be the most prominent spec (from 20-20K with specified THD).

 

[Suphawut]

Okay, I thought you were talking about power output. For sound quality, it is subjective, and depends on many factors unless you compare them all in pure direct. Even then you can't remove bias unless you do blind tests. I like Anthem too and I do have a power amp for the L/R of my HT system but I could have easily do without it as I have the 8 channel power amp already. It is there not doing anything so I use it, no audible sound quality difference at all.

of course dude... anyway Anthem dun really *belong* to category of Avr like the 1 we r talking.. but the MRX series really left me speechless how can reciever perform.

 

[Suphawut]

Actually, I love it when a company cites capability at 8, 6, and 4 ohms.
Not every amp can handle 4 ohms, so this is useful information.
It is just that the 8 Ohm value is the FTC standard and ideally, should be the most prominent spec (from 20-20K with specified THD).

long ago i checked aldy... its a marketing *legal* attraction. lol... its somehow or rather the same now. cause alot of consumers whom nvr look into more details n thought that as long as its HDMI 2.0 it will support features like Onkyo does as they prefer/insist on other brands... end up they look in the mirror n laugh at themself.. lol..

 

[3db]

Okay, I thought you were talking about power output. For sound quality, it is subjective, and depends on many factors unless you compare them all in pure direct. Even then you can't remove bias unless you do blind tests. I like Anthem too and I do have a power amp for the L/R of my HT system but I could have easily do without it as I have the 8 channel power amp already. It is there not doing anything so I use it, no audible sound quality difference at all.

Yep, you and I know sighted tests to determine which sounds best is fraught with subjective influences that the listener is unaware of.