Atomic apx with 4" coils?

[myjaja 10+ year member]

Im thinking about getting the new dc lvl 5 m2's but my friend keeps telling me to get the atomic apx with the 4" coils and the 856 motor over them. How are the atomics though? Are they better over all than the dc lvl 5 m2's? Im planning on running two sundown saz-3500's on them as well (two 12's.)

thanks

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[hispls 5,000+ posts]

I would trust Atomic softparts over the DC. Either should get loud in a proper box, 4" coil is good for about 30-40% more continuous thermal power handling than 3" coil.

 

[groundpound4200 5,000+ posts]

I'd take a 4" atomic motor over a level 5 but they're both very capable

 

[myjaja 10+ year member]

I would trust Atomic softparts over the DC. Either should get loud in a proper box, 4" coil is good for about 30-40% more continuous thermal power handling than 3" coil.

worth upgrading from the aq hdc4's?

 

[snoopdan 5,000+ posts]

I'll vouch for the Atomic softparts as well. I put my APXX's thru hell and they still lasted.

 

[Papermaker85 5,000+ posts]

4in coil doesn't mean louder..

Your looking for high displacement drivers..

What you tuning to?

Your cars going to peak around 47 to 50 for comps..

F3 should occur around 28 from natural cabin gain..

Putting another 3500 is going to kill any singal alternator..

You need at least a 250 amp alt and 2 huge batteries..

They key here is efficiency in design then displacement capibilities then power handling..

 

[snoopdan 5,000+ posts]

Yeah, the 4" coil won't get you any louder, you'll just not be frying voice coils as quick.

 

[myjaja 10+ year member]

4in coil doesn't mean louder..Your looking for high displacement drivers..

What you tuning to?

Your cars going to peak around 47 to 50 for comps..

F3 should occur around 28 from natural cabin gain..

Putting another 3500 is going to kill any singal alternator..

You need at least a 250 amp alt and 2 huge batteries..

They key here is efficiency in design then displacement capibilities then power handling..

Having a 4" coil pretty much means it can handle more long term. My friend was the one that recommended me getting that one though. Im currently tuned to 33-34 hz with my two 12" aq hdc4's. Im doing a 151.6 with those subs off music on a single saz-3500. Im also planning on getting a dc 270 amp alt once I get the second sundown saz-3500.

My goal is to have a loud daily trunk car doing at least 153-155 off music with a low tuning.

 

[Papermaker85 5,000+ posts]

Well if you gonna get another 3500 stick to the aqs for now they should take 3500 on music..

Depending on how low you gonna keep it tuned you might be better off with a larger box and more port area to make it peak harder around tuning if thats what your going after..

I'm about 99% positive your gonna peak in the high 40 to low 50hz range..

Play with you tuning just a bit, try 36 see how you like it they will still have some killer low end and should give you a boticable gain closer to the cars res frequency..

 

[bhsdriller 10+ year member]

"atomic apx with the 4" coils and the 856 motor "

I don't follow....apx with an 856 motor? Wouldn't that be a 856 with a 4" coil?

 

[09civic 5,000+ posts]

Keep your AQ's. New box or and more power.

 

[groundpound4200 5,000+ posts]

I'm about 99% positive your gonna peak in the high 40 to low 50hz range..Play with you tuning just a bit, try 36 see how you like it they will still have some killer low end and should give you a boticable gain closer to the cars res frequency..

How the fuck are you going to know that without knowing what he drives? There are also plenty of people out there running 7kw+ off a single alt, myself included

 

[infamous_e46 5,000+ posts]

Arent apx 3" coil and apxx 4" coil?

 

[groundpound4200 5,000+ posts]

Arent apx 3" coil and apxx 4" coil?

Not always....

 

[Papermaker85 5,000+ posts]

How the fuck are you going to know that without knowing what he drives? There are also plenty of people out there running 7kw+ off a single alt, myself included

He has videos, lmfao

if you running 7 kw off a single amp your killing you electrical system..

7k@80% efficiency that's around 9000 watts of draw on the alt/batteries

P/V=I

P= power in watts

9000/14=642 amps of draw.

If you have a 300 amp alt your batteries have to discharge 340 amps.

I didn't say it's not possible but your gonna damage the equipment..

What does your voltage drop to?

Main reason you get away with it because music is dynamic.

My rs 1750.1s do about 3900 @1 ohm strapped with 2 2400s and a stock alt but it drops to 12 volts..

I measured around 360 on lil John-throw it up..

I could play it all day but eventually the alt/batteries breakdown..

Windings get too hot etc etc...