I have a home theater receiver that outputs at 8-ohms but I have 6-ohm speakers. Is this going to pose any problems in the short term till I can afford 8-ohm speakers?

10/15/2005 12:24:45 AM

running ur avr 235 at 6 ohms would probaly be ok for a short while considering thre's still 2 channels going ununsed and it's pretty quality peice of electronics. but i really would recomend against using them for a long time the 6 ohms speakers will cause the receiver to get hotter than normal with the lower impedance and possibly even shut off. if u got the $$ i'd sell that 5.1 setup. the tss450 works really well with the avr235 , if i can't sell it i plan to keep it and eventually get a pair of floor standing speakers to complete the 7.1.

10/15/2005 12:47:48 AM

Read the manual for the reciever. Most manuals will address this very issue.

10/15/2005 2:08:52 AM

lower resistance means more current

means hotter amp.

10/15/2005 2:42:15 AM

ok now its reversed. 6-ohm receiver with 8-ohm speakers? Shouldnt be a problem right?

10/15/2005 11:55:26 AM

Nope

Poor sound now.


Impedance matching is done for a reason.

10/15/2005 11:57:09 AM

found out the receiver has a switch that lets it go back and forth between 6 and 8 ohms so all is good. thanks for the help.

10/15/2005 1:49:05 PM

so if you have an 8-ohm reciever and try to power 4 ohm speakers, the by product will be alot of heat that can damage your reciever. So if you don't listen to your speakers very loud and for short periods of time, there should be no problem, right?

10/16/2005 1:22:04 AM

for shit like 6-ohm and 8-ohm... you have to understand that impedance is variable with respect to frequency and that 8-ohm is only a nominal rating... for most amps, a 20% difference in nominal impedance won't be a problem... it's when you start running 3.4ohm '4ohm' speakers on a 8ohm amp that you start encountering serious problems...


anecdotally I've ran a .9 ohm nominal configuration off of an amp rated for 4ohm and not had a problem yet, whereas I ran a 4ohm configuration off of an amp rated for 2 ohm and blew a fuse in it the first time I played it for any significant length of time at the higher end of its gain, so... again, anecdotally... ratings are shit if you are using something expensive, pad them... if you don't care about what you are using, disregard them entirely and let the fuses tell when you've gone too far ;p

10/16/2005 3:59:46 AM