bridging 4 channel amp ohm question

[ferretslim 10+ year member]

so i have the massive audio ck-6x speakers in the front and ck-69x in the rear manual say they need 250watts for the 6x9s at 3.6ohms and the 6 1/2 need 200watts at 3.6ohms and thats at each speaker very hard to find an amp that powerful so i am curious if i where to go with an Alpine PDX-f6 and bridged it together is it going to be ok considering it says 4ohm stable in bridged mode .4 of an ohm difference? what would this like cause to happen? heat, noise, overload?

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[keep_hope_alive Premium Member]

if you bridge the F6 you can only power two speakers since it's 4 ohms stable bridged and 2 ohm stable in stereo

just run the amp normally to the speakers - in 4 channel mode. the F6 is rated 150Wx4 which is more than you'll need and quite frankly 150W into those speakers would be unlistenable.

the speakers cannot handle 200W RMS when ran full range anyway, that's just trickery with ratings. maybe the woofer can take it if bandpassed low and high, just moments before failing or if only for a second. but it's not a useful rating.

a solid 50W RMS is more than most people will ever need for a speaker.

 

[ferretslim 10+ year member]

I wondered about that that's great thanks for your help