2 RD Heavyweight 15's vs. 2 apxx 856 12's

[Polski13 10+ year member]

I have the chance to buy two rd heavyweight 15s or two apxx 12's for about te same price. Which is better? Can handle more power? Etc. Please let me know asap. I have to make my decision real soon

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[NASTY08IMPALA 5,000+ posts]

I have the chance to buy two rd heavyweight 15s or two apxx 12's for about te same price. Which is better? Can handle more power? Etc. Please let me know asap. I have to make my decision real soon

Whats it going in ? Power on tap?

 

[Polski13 10+ year member]

Whats it going in ? Power on tap?

Trunk of 05 honda accord coupe and im runnin a dd z1a atm

 

[soundstreamer 10+ year member]

Isn't the Heavyweight a 4" coil? I know people used to put 4-5k on them with music.

I'm pretty sure the APXX is a 3" coil which makes me think the RD will absorb more power. Both subs are beasts tho...

 

[NASTY08IMPALA 5,000+ posts]

Trunk of 05 honda accord coupe and im runnin a dd z1a atm

Well thats a easy choice..u dont really have proper room for the 15s ....but thats ok cuz the apxx 856s are monsters amd can take gobs of power ..are u sure they are apxx 856 and not apx856..they made both...id say snag them.

 

[NASTY08IMPALA 5,000+ posts]

Isn't the Heavyweight a 4" coil? I know people used to put 4-5k on them with music.I'm pretty sure the APXX is a 3" coil which makes me think the RD will absorb more power. Both subs are beasts tho...

Well its tough they made the apx 856 in 3 and 4inch and same for apxx i think ..too many **** options ...even with the 3inch i think they will outdo the hd its a 3inch coil too but he doesnt really have the room for 15s

 

[72Impala 10+ year member]

Apxx 856 is 3", apxx 1078 is 4" (the number is the gap OD in mm)

Rd uses SJA motors (atomic), apx = heavyweight, apxx = super heavyweight

I would choose apxx over heavyweight any day, but the 15's are more cone area.

Bottom line, the apxx's have a better coil and suspension + more motor force, but 15's are still bigger than 12's. So to me it depends on your amp/electrical situation

 

[NASTY08IMPALA 5,000+ posts]

The super heavyweight is the 4" coil.....idk what ur payin for them ...but im a aq nuthugger amd id buy 2 new hdc4 12s lol

 

[NASTY08IMPALA 5,000+ posts]

Apxx 856 is 3", apxx 1078 is 4" (the number is the gap OD in mm)
Rd uses SJA motors (atomic), apx = heavyweight, apxx = super heavyweight

I would choose apxx over heavyweight any day, but the 15's are more cone area.

Bottom line, the apxx's have a better coil and suspension + more motor force, but 15's are still bigger than 12's. So to me it depends on your amp/electrical situation

Doesnt matter the amp/electrical he doesnt have the room for the 15s lol

 

[Polski13 10+ year member]

Well thats a easy choice..u dont really have proper room for the 15s ....but thats ok cuz the apxx 856s are monsters amd can take gobs of power ..are u sure they are apxx 856 and not apx856..they made both...id say snag them.

Yeah im sure they are the apxx 856. They have the 3" coil and so do the heavyweights I believe. And yeah I'm worried about the space I Have. If I got the heavyweights I would try and to an in trunk build. It would b my first attempt. I could also run 1 heavyweight but I prefer running two subs

 

[NASTY08IMPALA 5,000+ posts]

Yeah im sure they are the apxx 856. They have the 3" coil and so do the heavyweights I believe. And yeah I'm worried about the space I Have. If I got the heavyweights I would try and to an in trunk build. It would b my first attempt. I could also run 1 heavyweight but I prefer running two subs

Go with the apxx in like 5 cubes ..or like i said hdc4 12s are 379 new free shipping ..but im biased lol

 

---------- Post added at 08:34 PM ---------- Previous post was at 08:34 PM ----------

 

And im with ya i prefer a pair of 12s over a 15 too ..been down that road

 

[soundstreamer 10+ year member]

I forgot RD had Super Heavyweights... Those are the ones that took gobs of power.

I vote 15" subs if its SPL purposes, 12" subs for daily since you'll have enough room for a proper lower tuned box.

 

[Polski13 10+ year member]

Go with the apxx in like 5 cubes ..or like i said hdc4 12s are 379 new free shipping ..but im biased lol 

---------- Post added at 08:34 PM ---------- Previous post was at 08:34 PM ----------

 

And im with ya i prefer a pair of 12s over a 15 too ..been down that road

Haha. Thats not a bad price. But i love atomic. Im runnin 2 apx 818 12's and there beasts. Ive never ran rd tho.

 

[Polski13 10+ year member]

Go with the apxx in like 5 cubes ..or like i said hdc4 12s are 379 new free shipping ..but im biased lol 

---------- Post added at 08:34 PM ---------- Previous post was at 08:34 PM ----------

 

And im with ya i prefer a pair of 12s over a 15 too ..been down that road

Haha. Thats not a bad price. But i love atomic. Im runnin 2 apx 818 12's and there beasts. Ive never ran rd tho.

 

[Polski13 10+ year member]

Yeah for sure. I have the dd z1a, 270a singer h/o, big three, mutliple runs of 1/0, 3 spv 70 batts, and yellow top