I don't know the amp design theories behind it, but I know you should always try to match the speaker impedance to the amp rating. 4 ohms and 4 ohms , 8 ohms and 8 ohms...
the Stingray was optimized for 5 ohms( I don't know why it wasnt optimized for 4 ohms...)

It probably doesn't matter much, as a speaker's impedance varies over it's range anyway....

So your amp is not campatible with 8ohm speakers, never heard of that. All AVR specs are normally rated into 8ohm, 6ohm, and 4ohm. The amp doesn't know the difference.

It will work with 8 ohms I just think it will sound better with 4 ohms...up to a point where it can't drive them any louder.

I did a quick google search on impedance matching. Of course, everything on the internet is 100% true, but I got the gist that solid state amps don't care so much but tube amps do.

So how do you like your Manley Stingray? It is on my wishlist (that or Cary SLI-80). I have never heard of anyone having problems with Stingrays and 8 ohm speakers.

I love it. I rescued some Klipsch Fortes from a garage yesterday. The Stingray is driving them and they are awesome. Treble is not great great but is ok. Bass is incredible.

Stingrays sell so inexpensively on Audiogon. I don't know what speaker configuration I am going to wind up with but some day I am going to have to stingrays driving the fronts and rears and a Mahi (monoblock) driving the center.

The Stingray opened my ears with the War of the World DVD. I have a Denon AVR and the Jeep getting thrown out of the hole sounds 100 times better on the Stingray and the Jets flying over the farmhouse followed by the battle would put the Denon into circuit protection. The Stingray has no problems. However, the Stingray can get loud, but has its limits. It would not be for everyone. Although with the Klipsch it can get crazy loud.

Driving speakers that reach easily down to 30 hz has me excited to hear the M80's. The Klipschs are lots of fun, but the blurred treble would probably bug me over time.

hi, just wanted to thank mark johnson for allowing me to audition his axiom speaker setup. he was great to deal with a such a nice guy to talk to. had a great time listening to those fantastic speakers. i will be ordering mine very soon. thanks again mark and have a great holiday season.

Eh?

Mark, is that you? what's with the new alias?

no, i auditioned his speaker setup with mark today. alias???