Newbie question about OHM and compatibility

nick chan New member Username: Zzzxtreme Post Number: 5 Registered: Aug-08	Posted on Wednesday, August 20, 2008 - 15:11 GMT hi i have 6 ohm speakers. and on a potential amp that im buying, there's a switch to select 8 or 4 ohm at the back. hmmm, must I only get 6ohm amps ?
David Mitchell Gold Member Username: Dmitchell Ottawa, Ontario Canada Post Number: 1311 Registered: Feb-07	Posted on Wednesday, August 20, 2008 - 15:16 GMT Should be ok. It's alright for the speakers to be higher than an amps minimum impedance. It's not ok for the speakers to be lower.
nick chan New member Username: Zzzxtreme Post Number: 6 Registered: Aug-08	Posted on Wednesday, August 20, 2008 - 15:24 GMT thanks a lot !!
Stu Pitt Gold Member Username: Stu_pitt Irvington, New York USA Post Number: 2954 Registered: May-05	Posted on Wednesday, August 20, 2008 - 18:26 GMT 6 ohm speakers will not stay at 6 ohms for any realistic length of time. Some speakers list them as 6 ohms, meaning a nominal impedence. A 6 ohm speaker may go as high as 16 ohms and as low as 4 ohms. See if they have a spec that says minimum inpedence. Some companies are more honest with these specs than others.
Nuck Platinum Member Username: Nuck Post Number: 10664 Registered: Dec-04	Posted on Wednesday, August 20, 2008 - 23:17 GMT If you select 4 ohms, the current will be limited and you should be safe.
Frank Abela Gold Member Username: Frank_abela Berkshire UK Post Number: 3177 Registered: Sep-04	Posted on Thursday, August 21, 2008 - 15:26 GMT Correct - if you buy 6-ohm speakers, set your amp to the 4-ohm setting and you'll be fine.

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