Your Price: $479.00
Part Number:HDC415-D1-A

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SoundQubed introduces our competition grade subwoofers with high power 4 inch voice coils. The HDC-4 subwoofers feature our largest and most powerful motor ever, coupled to a new frame and suspension system.

The 9.25 inch diameter multi-layer spider system with integrated lead wires provides well controlled excursions needed for advanced box tuning. The high gap flux powered by the triple stack, 10 inch diameter magnets add extra control while increasing sensitivity. Our laminated kevlar cones are used due to their excellent strength and durability.

The voice coils are high temperature flat wire aluminum on black anodized aluminum formers. 10 gauge Direct Connect wiring is used to lower resistance and make multiple wire connections as easy as possible.

The HDC-4 subwoofers are setting new standards for heavy duty applications where good sound and high power are needed.

Model HDC415
Woofer Size 15"
F(s) 34.99 Hz
0.846 Ohms
5.699 Ohms
Q(ts) 0.604
V(as) 64.22 liters 
L(e) 0.182 mH
n(0) 0.369 %
331.8 grams
0.062 mm/N
Sensitivity 1W/1m 87.78
BL 9.323
Xmax 40mm
Magnet Weight 403oz
Coil Diameter 4.0"
Coil Length 54.356mm
Usable Throw 69.85mm
RMS Power 2000W
Peak Power 6000W
Mounting Depth 8.125"
Circle Cutout 13.75"
Outer Diameter W/Gasket

PLEASE READ: In the pursuit of offering the best in DIY car Audio we ask that you read about clipping, what causes it and what the outcome is. 
5 Stars
Hdc4 madness
I bought this sub after upgrading from a hdc3 and holy hell is this thing worth the extra $100 I love this sub and it gets crazy low and loud and people shit themselves when I tell them I only have 1 15 if you are looking for a wow factor this is the sub for you
Did you find this helpful?  24 of 26 Found Helpful
Reviewed by:  from missouri. on 12/18/2014
5 Stars
Amazing sound with high output
I am impressed with how much of a low end monster this is. I have it in 3.25 cubes after all displacments, tuned to 33hz with 75sq in. of port. It gets low and loud. Quality is amazing!
Did you find this helpful?  16 of 16 Found Helpful
Reviewed by:  from US. on 8/17/2013
5 Stars
awesome sub. worth every penny. i have it running in a 4.2 cube box tuned to 43 right now for burp but 3 for daily and it sounds great in my hatchback but it wants more power. i am running it at .5ohm daily at around 3krms and its laughing at it. so far with it not broke in im doing 148.5s in the kick dropping to 11.5 volts. after electrical upgrades to support new build i plan on changing tuning to a solid 38hz for daily/burp and running 2 2200.1s strapped
Did you find this helpful?  15 of 15 Found Helpful
Reviewed by:  from illinoise. on 3/4/2013
5 Stars
King Kong in The Trunk!!!!!
Wow freaking amazing for 1 15" sub-woofer. I have it in a sedan and all I got to say is King Kong in the trunk, seriously my trunk is trying to pop open. I'm running on stock electricals and from my calculation froma 110 amp alternator I'm only puting maybe a little over 700 rms. But dammmmmnnnnn it's so damn loud my whole car is flexing like it's about to break. Best sub ever owned. Soundqubed FTW.
Did you find this helpful?  14 of 15 Found Helpful
Reviewed by:  from Minnesota. on 3/7/2013
5 Stars
Hi There, Heard (2) of those in buddy's vehicle, 12 cubes net B-Pillar Wall at 28hz, I am impressed with their OUTPUT, Could not hurt them even with distorted (5K amp) signal!!! YOU GET A LOT OF SUB I MEAN BEAST THAN WHAT YOU PAY enough said :) Recommend them to anyone looking for destructive BASS, BTW do not get fooled with that high Fs, it is high due to its MASSIVE motor (Very High Motor Force), it produces the LOWS like no tomorrow ;) Kindest Regards.
Did you find this helpful?  13 of 13 Found Helpful
Reviewed by:  from Saudi Arabia, Jubail Industrial City. on 1/30/2015
5 Stars
I bought one of these subs just one for my Infiniti G35s I'm running it on a 4,000 watt Boss Phantom amplifier which isn't even a good amp and just that one sub made my rear view mirror fall off I've always went with cheaper subs but decided to spend the extra money after I blew my last one and if you spend that extra money on this one you will not regret it I am beyond pleased with this subwoofer! Outstanding piece, fast shipping, and great customer service amazing job soundqubed you'll have my business for everything from now on! All I advice is you order some Qmat to go with it especially if it's going in a trunk you'll need it and Qmat as well is a great product and worth the money
Did you find this helpful?  12 of 12 Found Helpful
Reviewed by: (Verified Buyer)  from Tennessee. on 10/21/2014
5 Stars
Best woofer HANDS DOWN
I recently removed 2 Rockford fosgate P3's out of my car, and replaced them with 1 HDC4 15, and it BANGS way harder, and way cleaner, the best woofer ive ever heard in my life. Thanks Soundqubed
Did you find this helpful?  12 of 12 Found Helpful
Reviewed by:  from Kentwood MI. on 5/11/2013
5 Stars
Bought this sub a couple months ago, final had the time to install it and wwwoooowww way more than i expected. This thing is a monster! Soundqubed ftw!
Did you find this helpful?  10 of 10 Found Helpful
Reviewed by:  from florida. on 5/31/2016
5 Stars
awesome sub's
i bought 2 of these hdc415's and all i can say is wow i only have 1600 watts rms going to them and everything in my jeep shakes. my windshield even moves in and out. cant wait to get the stetsom 10kd going and see what these will really do.
Did you find this helpful?  9 of 10 Found Helpful
Reviewed by:  from toledo. on 3/29/2016
5 Stars
Heavy Bass!!!!!
I have 2 of these in an 11.5 cube box after displacements running off of a Shok V (5k watts) tuned to 32. These things POUND!!! I'm absolutely in love. My windshield flexes so hard! The bass is clean too, it's not a muddy sound at all. I highly recommend these subs!
Did you find this helpful?  9 of 9 Found Helpful
Reviewed by: (Verified Buyer)  from Texas, USA. on 1/8/2015
5 Stars
Awesome sub. Holds more than it should
Did you find this helpful?  8 of 8 Found Helpful
Reviewed by:  from sarasota fl. on 3/8/2016
5 Stars
The Biggest and baddest made from Soundqubed and they sound beautiful and the motor force is awesome. love them
Did you find this helpful?  7 of 7 Found Helpful
Reviewed by:  from Tulsa, Ok. on 10/4/2016
5 Stars
I got two and I love them. Would tell anyone serious about getting loud to buy them.
Did you find this helpful?  7 of 7 Found Helpful
Reviewed by:  from Polk City, IA. on 4/10/2015
5 Stars
Loudest sub I've ever heard
I have this in a ported box tuned to 33hz and it is absolutely the best sounding sub I've ever heard it's running about 2200 watts to the sub at one ohm and it handles it fine I would even push it higher just don't have the amp for it but I would recommend to anyone
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from Grandview IN. on 3/13/2017
5 Stars
This sub is an absolute beast. I have it in 4 cu tuned to 32hz and it slams like there's no tomorrow. It's power hungry and doesn't even get warm in my setup (2154w). Would recommend to anybody. Great quality and sound.
Did you find this helpful?  4 of 4 Found Helpful
Reviewed by:  from Colorado Springs. on 5/12/2017

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