copper or aluminum coils?

[Boon]

Copper weighs more so more mms hence lower fs, as mentioned.

Aluminium dissipates heat better into the air.

Copper for SQ, Aluminium for SPL IMO

[HHR Ed]

whoever said Aluminum is louder?

I can name the 3 subs that have hit the highest scores ever in the world, and all have copper coils.

There are trade offs to each and loud and SQ has more to do with soft parts and design.

But as far as the AQ, I am not sure how they perform.

[ambyrell1]

whoever said Aluminum is louder?

I can name the 3 subs that have hit the highest scores ever in the world, and all have copper coils.

There are trade offs to each and loud and SQ has more to do with soft parts and design.

But as far as the AQ, I am not sure how they perform.

just curious, what are the three subs?

[HHR Ed]

just curious, what are the three subs?

DD-99Z

Shocker Brazil

Pioneer Premier

[Chode69]

so would 2000watts blow the copper coil

my Level 5s have copper coils and im throwin 3k at them and there doing fine..

[Cr@sh]

I read in "Advanced speaker designs" from radio shack, a book I bought years ago that performance was dependant on how the soft parts are balanced. If you had too much weight on the coil side it could bottom out and if too much on the surround, cap, and cone side it can come out of the magnet easier and have less control. A balanced speaker whether copper or aluminum would have great control if it's balanced weight wise.

[Moore941]

my Level 5s have copper coils and im throwin 3k at them and there doing fine..

But ya do gotta admit they do get warm pretty quick. i mean mine hasnt had a problem with the 2600 or so im throwing at it. but it does get warm, when i jam on it for more than a few minutes.

[Loudcav]

But ya do gotta admit they do get warm pretty quick. i mean mine hasnt had a problem with the 2600 or so im throwing at it. but it does get warm, when i jam on it for more than a few minutes.

I dont know of a speaker that dosent get warm after a few minutes of hard playing

[Forevrbumpn]

All of the answers are correct stated

1) heavier, causing lower Fs

2) aluminum dissipate heat better, but copper can hold a pretty high temp

3) copper is a muh better SQ style coil that is for sure

but also not listed is that toe to toe alum vs copper, all the specs change, since copper has a much lower resistance, if you use the exact same coil specs, wire gauge, layers, winding width, lets say 2" ww, on a 3" coil, 4 layers 20 gauge

the copper will probably be about D1ohm, while the alum would be a D2-D3ohm

The copper will have a Bl about 3 times that of the aluminum coil say 20 alum to a 60 for the copper

The qts and qes change night and day, and vas will probably be cut in half of the aluminum

So all in all, if you like great sound from a smaller box, go with copper

another guy to ask about copper vs alum, I think was Jacob, he was telling me how he did some testing of copper vs alum coils... I have done testing between the 2, but it wasn't the greatest comparisons

[Moore941]

I dont know of a speaker that dosent get warm after a few minutes of hard playing

exactly but just the way he worded it sounded like they have no heat or anything at all, just wanted to clear that up being that i run a lvl5 18. And its not just a luke warm, its pretty dang hot, hasnt effected the sub at all though thing still pounds away day in and day out. And thats with the cleanest signal i can get out of my amp.

And forevrbumpin is corect from what all ive read on the differences.

Edited September 29, 2009 by Moore941