Originally Posted By: alan
Hi all,

I've owned excellent Yamaha stereo gear in years gone by as well as some of their early soundfield processors (prior to the era of Dolby Digital 5.1, etc). Unfortunately in recent years, as FredK has pointed out, there have been issues with some models of Yamaha AV receivers (Pioneer, Sony, Onkyo as well) driving the 4-ohm M80 tower speakers. Because of that history with M80 owners, and also because other inexpensive AV or stereo receivers (Denon, Sherwood Newcastle, Harman-Kardon, Outlaw Audio) have no problems with overheating or shut-down with 4-ohm loads like the M80s, I tend to not recommend Yamaha, Onkyo, or Pioneer receivers for use with any 4-ohm speakers. With 8-ohm or 6-ohm speakers, they're fine.

Regards,

Alan


Alan,

I actually emailed one of your reps at Axiom today in regards to the yamaha being able to handle the 4ohm load of the M80's... his response, (and please do not think I am throwing you under the bus if you read this) was that he looked over the yamaha 863 manual and based on what he found felt that the yamaha 863 would have no issue driving the M80's...

I do not want to start a debate over this but I am interested in hearing more in regards to the science behind this reasoning and what your take on the situation is besides previous experience as well as everyone elses approach...

Alan you also mentioned that you have used yamaha receivers in the past... how long ago and what models? Based on what I have read the yamaha's have had a pretty good overhauling over the past few years alone... The amplifier in the 863 is the same that they came out with last year or the year before I believe due to the fact that it is a proven amp and works well under "pressure"?

I am as they say... all ears ;\)


Yam 863
Pan 50 Plasma
EMP compacts and sub
Pan BD30