4 ohm sub only reading at 3.5 ohm's

[quins90lac 10+ year member]

ok so today i decided that i would hook up my other 760w pioneer amp i used a set of rca y cables out the back of my deck and to sets of rca's . The 2 rca's weer different from each other one was a little longer and the Y cables i used are kinda old .the subs weer hitting hard for about 2 songs and then barely any movement . their supposed to be 4 ohm subs and now they only read at 3.5 ohms im thinking their fucked . or could the problem be the the Y cables weer not allowing the correct pre out voltage to each amp

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[jco1385 5,000+ posts]

that is normal //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

it won't be exactly 4 ohms everytime

 

[Cabin_Pressure 10+ year member]

Can you post this using proper grammer so i can understand why you think there is a problem? Anyway, subs usually read slightly lower than their rating, i have some 4ohm subs that read 3.6ohms.

 

[99grandprixGT 5,000+ posts]

type R FTW

 

[quins90lac 10+ year member]

edited it hope it sounds better and is easier to under stand

 

[jco1385 5,000+ posts]

if they still read 3.5 you didnt cook them

 

[quins90lac 10+ year member]

found the problem im stupid lol . it was a lose ground .tightened it back down and they work fine now. dam i was hopping they would be blown so ide have an excuse to get new subs dam