4 ohm speaker to 8 ohm reciver


i have fmj avr 400 with me no problem but last week i upgrade my speaker to
    sonus faber venere s . i did connect with my arcam use biamping listen music watch movie
not very loud but today i just notice my speaker is 4ohm ,arcam is 8 ohm and i so worry .
please let know what will happen speaker or my arcam.
khaung2790
Hi,

Did you say you were bi amping the speakers with secondary channels out of the receiver??

There should be no problem.

I’ve had a few different receivers, but no Arcam, and on many of them on their rear face plate is a switch which changes the transformers output taps from 4 – 6 – 8 ohms. Look for that. It could be too if a very late model unit, the switching is in the settings menu, or the receiver is simply capable of driving a variety of speaker IMPs due to a good transformer in its construction.

Given your new SF speakers, start looking for an amp to add to the receiver which will drive and make them sound much better.

Good luck.


You can usually tell if the receiver/amplifier is straining by how hot/warm it gets during normal operation. As an example, I drove a pair of Magnepan MMGs - straight 4 ohm load, with an Acurus 100 wpc amplifier and only after 15 minutes the amplifier got so hot that you could smell it from six feet away....Not apples to apples but you get the idea.
thank you for answer , IT mean i can still use my sonous faber venere s.but need to change reciver . 
Check out the Rogue Audio Sphinx integrated amp. 100+ watts and an excellent phono stage. Very well reviewed by Herb Reichert in Stereophile!  Made in the USA, too!