Onkyo TX SR 805 ( can anyone make sense of the ohm settings/values??)

tophatjohnny

I just changed the ohm setting from 6 to 4 ohm on my receiver and it sure made a difference in the power, and at loud volumes the receiver no longer goes into protection!! (:cool: ) I looked at the specks on my SDA 1B's and 4 ohm is where they need to be.
when I look at the specs on the Onkyo, it talks about 8 ohm and 6 ohm settings but there is no mention of 4 ohm setting?? On the menu, there is no 8 ohm option?? Kind of strange, so hope someone knows what all that means?? Thanks

SugarmillMan

I've owned three Onkyo receivers. They all used the notation of >6 for 6 or 8 ohm speakers and <6 for 4 ohm speakers.

F1nut

What you are actually doing by using the 4 ohm setting is restricting current, which will save your AVR from cooking itself. The downside is that by restricting currect you'll not get the most out of your listening. You really need to add an amp capable of 4 ohm loads as most are.

tophatjohnny

F1nut wrote: »

What you are actually doing by using the 4 ohm setting is restricting current, which will save your AVR from cooking itself. The downside is that by restricting currect you'll not get the most out of your listening. You really need to add an amp capable of 4 ohm loads as most are.

Thanks, and that's my next move! however in the 4ohm setting, I am able to crank the speakers up a little more and the AVR is not shutting down?? Digging that.

tonyb

By "turning it up" some more from a point where the receiver was going into protect mode ? IMHO, your just asking to buy new tweeters. Your still introducing more distortion at that level. Your receiver maynot overheat as quick, but your speakers still won't be protected from sticky fingers on a volume dial.

michael1947

I use a txsr 805 in my workshop and it really works perfectly running M70 monitors however it does not like less than 8 ohms. If your 805 and your SDA's were to meet in a dark alley...both would go to the ER.

tophatjohnny

michael1947 wrote: »

I use a txsr 805 in my workshop and it really works perfectly running M70 monitors however it does not like less than 8 ohms. If your 805 and your SDA's were to meet in a dark alley...both would go to the ER.

while the 805 talks about 8 ohm. there is no 8 ohm option?? 6 and 4 only! (on mine abyway) as for meeting in a dark alley. the sda 1B's and the 805 are doing quite well in the bedroom right now! (in 4 ohm mode)

billbillw

I had an SR805 for many years. I always left it in the higher 6 ohm setting. I powered more than a few 4 ohm speakers (Mirage M3, Sony SS-M9) at very loud volumes and it never went into protection mode. Perhaps you are just pushing it a bit too hard. I was pushing them at reference levels (0dB on the volume settings). Anything louder is just not good for your ears and its not enjoyable anyway.

tophatjohnny

billbillw wrote: »

I had an SR805 for many years. I always left it in the higher 6 ohm setting. I powered more than a few 4 ohm speakers (Mirage M3, Sony SS-M9) at very loud volumes and it never went into protection mode. Perhaps you are just pushing it a bit too hard. I was pushing them at reference levels (0dB on the volume settings). Anything louder is just not good for your ears and its not enjoyable anyway.

Did I fail to mention I have been drumming at insane volume levels for 48 years now?? I did switch it back to 6 ohm, and I have a Parasound 1200 amp on the way next week, so I'll find that sweet spot and save on what's left of my ears.