AQ HDC3 Copper Coil VS Aluminum.

[MmatsDude 10+ year member]

What coils did you guys get? and why? Wich will make the sub louder? I'm asking because theres a price diference by 81 dollars.//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif compare to the copper coil.

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[mazzasec 5,000+ posts]

Pretty sure that aluminum coils can handle more power and that copper coils sound better

 

[allout13 10+ year member]

What coils did you guys get? and why? Wich will make the sub louder? I'm asking because theres a price diference by 81 dollars.//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif compare to the copper coil.

I think it all depends on the power you have. copper coils should be louder with lower power because they are more efficient, but you can send more power to the aluminum coils so they have the potential to be louder.

 

[MmatsDude 10+ year member]

I think it all depends on the power you have. copper coils should be louder with lower power because they are more efficient, but you can send more power to the aluminum coils so they have the potential to be louder.

Well I'm planin on ordering 2 hdc3 15's runnin of a mmats d3500.05 2700 wrms @ .5 ohms. Both with copper will be 578.00 shipped and with Aluminum they'll be 740.00 shipped. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif:crap:

I also whent to the FI website and they have the FI BL 15's loaded with BP(cooling) and aluminums coils for 568.00 shipped wich is 10 bucks cheaper than the AQ's with copper coils.

I have already tried FI(there SSD model) and would love to try out AQ since I have already owned some FI's but Idk.//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[mazzasec 5,000+ posts]

Well I'm planin on ordering 2 hdc3 15's runnin of a mmats d3500.05 2700 wrms @ .5 ohms. Both with copper will be 578.00 shipped and with Aluminum they'll be 740.00 shipped. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif:crap:

I also whent to the FI website and they have the FI BL 15's loaded with BP(cooling) and aluminums coils for 568.00 shipped wich is 10 bucks cheaper than the AQ's with copper coils.

I have already tried FI(there SSD model) and would love to try out AQ since I have already owned some FI's but Idk.//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

Copper will do fine in your application

 

[MmatsDude 10+ year member]

Copper will do fine in your application

Ok, I'm taking your word for it. If it fails It will be your fault. LOL jk jk //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[allout13 10+ year member]

Copper will do fine in your application

yeah, with that much power copper is the way to go

 

[skmfkr 5,000+ posts]

x3 on the copper coils

 

[BushJ311 5,000+ posts]

x4. Think someone had a 2200d on each hdc3 with copper coils. You will be fine

 

[Kyle_Keating 10+ year member]

there is no sound quality difference, they certinally will invoke different TSP's because of the BL and moving mass difference.

Copper has 56% more BL than AL

Copper is 300% more mass than AL

Copper is about 60% more thermally conductive.

Copper is more expensive.

the moving mass difference makes aluminum the bettrer choice in most applications.

IE. Aluminum will play louder.

 

[groundpound4200 5,000+ posts]

the aluminum coil HDCs softparts are made in the US by hand iirc

 

[sundownz Pro Seller]

there is no sound quality difference, they certinally will invoke different TSP's because of the BL and moving mass difference.
Copper has 56% more BL than AL

Copper is 300% more mass than AL

Copper is about 60% more thermally conductive.

Copper is more expensive.

the moving mass difference makes aluminum the bettrer choice in most applications.

IE. Aluminum will play louder.

x2 - I was able to get over 2 dB louder with aluminum coils than copper coils in my testing in an equivalent driver otherwise.

The copper sub, obviously, has a MUCH lower FS - so works better for applications requiring that.

 

[mlstrass 5,000+ posts]

my copper coils are getting a pair of Sundown 1500D's each with no problems. I read that the copper will get louder off less power, but have never had a chance to actually test that theory.

The aluminum coils are US made and according to DJ are very similar to the old HD's. I switched from HD's to HDC's with copper and SQ seems to be the same.

 

[allout13 10+ year member]

there is no sound quality difference, they certinally will invoke different TSP's because of the BL and moving mass difference.
Copper has 56% more BL than AL

Copper is 300% more mass than AL

Copper is about 60% more thermally conductive.

Copper is more expensive.

the moving mass difference makes aluminum the bettrer choice in most applications.

IE. Aluminum will play louder.

I had never heard that before. interesting

x2 - I was able to get over 2 dB louder with aluminum coils than copper coils in my testing in an equivalent driver otherwise.
The copper sub, obviously, has a MUCH lower FS - so works better for applications requiring that.

just curious, how much power were you sending to the copper vs aluminum?

 

[sundownz Pro Seller]

Two 3000s strapped to either sub - lots of power.

Aluminum was more efficient on lower power as well - we tested (in another car) single 1500, single 2000, and single 3000 on the sub.

Not sure what the AQ copper coil looks like but I was testing 8-layer flat copper vs. 8-layer flat aluminum.