4 Ohm, 8 Ohm, BTL Mode... Confused..??

[Sounds Good]

My towers say 4 Ohm on the backs, Would there be any harm running the receiver in 8 Ohm mode, or maybe in BTL Mode?

I am trying to get a little more out of my system... it seems when I turn it up to what you would think is a loud level it isnt very loud...

 

[baniels]

Don't do that. You will not get any more power and you will probably kill your Onkyo.

From page 28 of the manual for your receiver:

Notes:
• Use only front speakers with an impedance of 8
ohms or higher for bridging. Failure to do so may
seriously damage the AV receiver.

 

[ichigo]

The 4 ohm mode just puts a hard power limiter, something like around 60WPC IIRC.

8 Ohm mode will run full range. The Onkyo's have a ton of power--Sound & Vision had them putting out 320WPC into 4 ohms; they can run your towers just fine.

 

[Sounds Good]

The 4 ohm mode just puts a hard power limiter, something like around 60WPC IIRC.

8 Ohm mode will run full range. The Onkyo's have a ton of power--Sound & Vision had them putting out 320WPC into 4 ohms; they can run your towers just fine.

Thats kind of confusing, is it 60W or 320W ?

 

[ichigo]

60W in 4 ohm mode.
320W into a 4 ohm load in 8 ohm mode.

 

[PENG]

60W in 4 ohm mode.
320W into a 4 ohm load in 8 ohm mode.

The 320W figure was presumably be at 1% THD and for 2 ch driven. 01% THD would be more acceptable but the output would like drop to around 240 to 260W just an educated guess.

 

[speakerking]

I would never run any 4 ohm speakers off a reciever period because the ohms change with frequency and also distortion goes up if you wanna get or keep 4 ohm speakers get a power amp.

 

[Goat1]

My Onkyo 805 only does 4 or 6 ohm.. My Paradigm speakers are 8 ohm.. I use 6 ohm on the receiver..

 

[PENG]

My Onkyo 805 only does 4 or 6 ohm.. My Paradigm speakers are 8 ohm.. I use 6 ohm on the receiver..

I thought it had been explained to you already. Leave the 805 alone in the 8 ohm selection and it will give you more power when your speakers dip down to 4 ohms or lower. If you set it to the 4 or 6 ohm positions, you will be limiting its maximum power output. Nothing wrong with that either if your listening environment/habit are such that you end up with more than enough power for the speakers to sound their best.

 

[Goat1]

No it wasn't explained.. I just said my Onkyo only does 4 or 6 ohm.. It does NOT have a setting for 8 ohm.. My speakers are 8 ohm.. I leave the stereo on the 6 ohm setting..

 

[billy p]

No it wasn't explained.. I just said my Onkyo only does 4 or 6 ohm.. It does NOT have a setting for 8 ohm.. My speakers are 8 ohm.. I leave the stereo on the 6 ohm setting..

Your right..it's clearly explained on pg 45 in the service manual, leave it set @ 6 ohm...if your speakers are rated between >6 & <16 ohm. There is no slection for 8 ohm.

 

[Goat1]

Your right..it's clearly explained on pg 45 in the service manual, leave it set @ 6 ohm...if your speakers are rated between >6 & <16 ohm. There is no slection for 8 ohm.

Ya,I do just leave it at 6 ohms..

 

[PENG]

Ya,I do just leave it at 6 ohms..

I thought the Onkyo had the 4 and 8 selection. My mistake, you did say 4,6. The "explained" part I referred to meant: do not use the 4 ohm setting unless you are fine with the reduced power output.