8 ohm fronts and 6 ohm rears...

[Alaskankaijudude]

I just got some Polk Monitor 70s and CS2 for my front speakers. I moved some Yamaha NSF-325s to my surrounds so I have three 8 ohm speakers and three 6 ohm speakers. Reciever is Yamaha RX-V863 which has a 8 ohm and 6 ohm setting. Which setting is best to use and why? Thanx.

[gearyt]

use the 6 ohm...
always go with the lowest...
protects the amp

[ozzman]

I went through this with BigDaddy Check out this Thread.It's Two pages but Helpful as Hell and a good read

https://forum.blu-ray.com/showthread.php?t=71469

[Alaskankaijudude]

Thanx for the responses. I will be leaving it set at 6 ohm.

[Driver_King]

Originally Posted by gearyt

use the 6 ohm...
always go with the lowest...
protects the amp

I have 4ohm fronts and 8ohm surrounds. My 805 has the 4ohm option. Does it make a difference if it's in 4ohm mode or not? It's perfectly fine in the 8ohm mode.

[Blu-Dog]

Originally Posted by Driver_King

I have 4ohm fronts and 8ohm surrounds. My 805 has the 4ohm option. Does it make a difference if it's in 4ohm mode or not? It's perfectly fine in the 8ohm mode.

What the manufacturers do is limit the rail voltage when you set the receiver at 6 ohm or 4 ohm or whatever. It just dials back the limit to how much output your transformer can put out. It's a power cutdown, pure and simple.

You won't notice at moderate listening levels, but at louder levels, the volume will diminish on a pretty steep curve. I don't know where the limit is on the Onkyo units, but the voltage can be cut by as much as 40% at reference levels.

It's better to go with 8 ohm speakers if the amp is rated normally at 8. 6 or 4 creates too many compromises.

[Driver_King]

It's made to power properly 4ohm speakers though...

[gearyt]

Originally Posted by Driver_King

I have 4ohm fronts and 8ohm surrounds. My 805 has the 4ohm option. Does it make a difference if it's in 4ohm mode or not? It's perfectly fine in the 8ohm mode.

It depends on the design of the amp and your volume level and your taste in music.... go for the 4

[Opips2]

My H.H. Scott Intergrated Amplifier has 4-16 ohms speaker impedance.
the amp is all 55 watts, A is 2 channel and B is 2 channel. A + B is 8 ohms speakers impdance.

0 db per 1 watts for speakers. 10db = 100 watts, 20db = 200 watts max!

it's possible can damage there speakers. if you high volume

[Big Daddy]

Originally Posted by Opips2

My H.H. Scott Intergrated Amplifier has 4-16 omhs speaker impedance.
the amp is all 55 watts, A is 2 channel and B is 2 channel. A + B is 8 omhs speakers impdance.

0 db per 1 watts for speakers. 10db = 100 watts, 20db = 200 watts max!

it's possible can damage there speakers. if you high volume

The impedance has nothing to do with it. You can damage any speaker with any amplifier, if you play the volume extremely loud, but at that level, you will also damage your own hearing.

Too many people are unnecessarily concerned about damaging their speakers. If you use an amplifier that is rated 500 watts per channel and your speakers are rated only 100 watts, it does not mean that you will damage your speakers. Of course, a big amplifier like that is capable of damaging any speaker, even much larger and more powerful.

The advantage of a powerful amplifier is that it will have a lot of reserve power and not clip that easily. It will also make your speakers sound nicer and up to their maximum potential. The key is not to get crazy and turn the volume to normal levels.

[Opips2]

Big Daddy,

Merry Christmas you!

[Big Daddy]

Originally Posted by Opips2

Big Daddy,

Merry Christmas you!

Thank you. Same to you. Have a nice holiday.

[Opips2]

bump!