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Bass issue


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Hey guys, have a bit of a situation. 

I got a small system in my toyota corolla ae90 hatchback. Totals 3000rms(deafbounce 2k on bass and nvx 800.4 on mids and highs)

I swapped my stock 90amp alternator that read 14.5v for a nissian  tidda stock 140amp alternator, a guy wired it for me,it reads 14.2 in my corolla. Strangely to my ear i found as though i lost bass(deepness and fullness) when i added the tidda alternator. 

Here is my real concern, my electrical is 1 run of xs power 0awg ofc silver tinned wire and i did a big3 with that also with 1 xs power xp3000 battery in the back and i set my gains using the dd1. I had my deafbounce ran directly to my battery(no fuse), recently i brought a distribution block from knuconcepths, and it had a mini anl 120amp fuse, i ran it for my bass amp(needed a 200amp), i was hoping the bass will decrease because the fuse was smaller and i had it ran direct before but the bass was exactly the same, no decrease. I got a 200amp mini anl and added it to the block, no increase or decrease on bass, i also added an optima redtop battery to the front, no improvement what so ever and voltage dips to 12.6 on heavy notes . 

A friend of mine has the same alternator in his toyota feilder, with a single northstar 60ah battery running more amps(power) than i am and his voltage reads 13.5v on the same notes i play and he is louder than me. 

What can be causing these problems?

Thanks

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Would you kindly clarify what wasn't answered in your previous thread about this issue so that your concerns may be appropriately addressed?

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All alts arent made the same. Youre using a Nissan alt in a Toyota? One may have better low rpm output, or vice versa. How old is this replacement alt? You had some guy "wire it up?" Its like two bolts and a couple of wires. What is the other thread? 

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My friend and i both own toyota vehicles, we both brought the nissian tidda alts and swapped our stock 90amp for the 140amp tidda. He is running more amplifier power than i and has a smaller electrical (battery bank) than i yet he yields more output, his voltage stands up better and my clip light comes on faster. I tested my grounds and they are good.   

Next, i didnt have my deafbounce amp fused before and now i added a 120amp fuse but it needs a 200amp fuse. When i added it 120amp fuse i thought the bass would decrease because of a bottle neck of the power but it was the same(i guess even with it ran direct before i wasn't seeing 120amps? If that answered my question) i added a 200amp fuse, it was the same. How can i fix this?

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Check your alt serpentine belt.

check grounds for amp and alt

one run of 1/0 can hold 350 A easy no way are not having enough head room for what u have

you might have something similar to a electric load detector like my civic 

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4 hours ago, Joshdashef said:

Check your alt serpentine belt.

check grounds for amp and alt

one run of 1/0 can hold 350 A easy no way are not having enough head room for what u have

you might have something similar to a electric load detector like my civic 

It just feels as though there is a cap on the power and no matter if i add a next battery or upgraded my alt it just sounds the same

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