4 ch. amp & different woofers on 1/2 vs 3/4;how close is ok for actual dc resistance?

[cad_3326 10+ year member]

My RE XXX 6.5 mids have an actual dc resistance of 1.75 ohm, whereas the id8's that I would like to run on the same amp (cheaper) have an actual resistance of 1.95 ohm; is that ok? If not, how close do the resistances need to be? For ex. would it be ok to run 1.75 ohm on 1/2 and 1.85 ohm on 3/4? where does the difference become negligable? Thanks

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[groundpound4200 5,000+ posts]

If they're on independent channels it wont matter.

 

[Immacomputer 10+ year member]

You're fine. The actual resistance will climb once you apply power and they will rarely be equal to each other and will vary with frequency. It's nothing to worry about at all.

 

[cad_3326 10+ year member]

Thanks guys; learning...