Help me figure out what these things are called.

Solder the ends of the wire and use what ever color heat shrink you choose works well also

Sky High Car Audio Amp Input Reducers 1/0 to 4 ga w/ Heat Shrink Inputs 0 Gauge | eBay

States it right there

bullet connectors, but they dont make them for gauges larger than 4.

your best bet would be to buy female-female 1/0awg barrel/set screw butt connectors and use a short copper rod with tight diameter tolerance for a male end into the amp terminal, otherwise, soldering just the very end of the wire to keep the strands from splaying will still allow you to crank down on the copper wire itself with the amp terminal set screw to mushroom it out for better contact.

1/0 inputs... They range 15-25$a set

1/0 inputs... They range 15-25$a set

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that's what i was looking for but was certain they werent made as i didnt find them,.. seems i did and they are called reducers as well.

I've seen these things that go on the end of wire to reduce them from a larger gauge to fit in an amp that will not accept that gauge of wire. Wire reducers I think. But what I want is the same thing but no reduction. I have an amp that accepts 0 gauge but I want to use the reducer like thing to keep the stands together and for aesthetics. Anyone know what those are called or even what I'm talking about?
The reducers are like this. https://www.amazon.com/dp/B06XDP5S9C/ref=asc_df_B06XDP5S9C5175866/?tag=hyprod-20&creative=395033&creativeASIN=B06XDP5S9C&linkCode=df0&hvadid=216499414469&hvpos=1o1&hvnetw=g&hvrand=466462373065463322&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9016355&hvtargid=pla-349773615493

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Are you saying you wanna use a smaller power wire to go into the amp than what the amp calls for which is 1/0? That's not really a good idea ,man. Here's why: that wire will heat up and may melt if you ever decide to go full tilt on your stereo one day/some day. You'll def put a strain on it....may end up ruining it down the road.

What amp is it?

https://www.amazon.com/dp/B06XDP5S9C/ref=asc_df_B06XDP5S9C5175913/?tag=hyprod-20&creative=395033&creativeASIN=B06XDP5S9C&linkCode=df0&hvadid=216499414469&hvpos=1o4&hvnetw=g&hvrand=18296049807853115376&hvpone=&hvptwo=&hvqmt=&hvdev=t&hvdvcmdl=&hvlocint=&hvlocphy=9021896&hvtargid=pla-349773615493

I think these are what u are looking for.

Wtf? 1/0 to 1/0? Noooooo...

Yea. You can buy us all ferrules for the price of those reducers. 50 for 13 bucks

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