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Item Id: HDS315
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The Heavy Duty Street Series 300 are 3.0" coil woofers boasting a power handling of 1200W RMS and peak power of 2400W.

Built with the best parts attainable on the market we give you the NEW HDS Series.
The HDS3 Series is one of the best values in the SQ subwoofer lineup. These subs are truly designed for heavy duty street bass. Every design feature was tweaked to give you the ultimate high efficiency/ high output subwoofer.

Features Include: 
  • Vented back-plate for optimal cooling and less turbulence in the coil gap. 
  • 3.0" diameter four-layer copper coil.
  • Heavy Duty push connectors for ease of install. (Accepts up to 10awg speaker wire)
  • Cast Frame.
  • Black electroplated top and bottom plates for additional  cooling. 
  • Non-pressed cone for maximum rigidity. 
  • High excursion foam surround. 
  • Power Handling 1200W RMS, 2400W Peak
Model HDS315
Woofer Size 15"
F(s) 35.66 Hz
7.27 Ohms
68.69 Ohms
Q(ms) 7.836
Q(es) 0.927
Q(ts) 0.829
V(as) 56.730 liters (2.003^ft)
L(e) 8.87 mH
n(0) 0.26 %
361.60 grams
0.06 mm/N
Sensitivity 1W/1m 86.33 1W/1m
BL 25.20
Xmax 14mm
Magnet Weight 145oz
Coil Diameter 3.0"
Coil Length 40mm
Usable Throw 28mm
RMS Power 1200W
Peak Power 2400W
Mounting Depth 8.25"
Circle Cutout 13.75"
Outer Diameter W/Gasket
Customer Reviews View All Reviews
Rating Hooly Damn
I'm afraid that my windows will shatter! So much bass!
  Reviewed by:   from Otis. on 2/3/2016
Rating SQ
I got my subwoofer 5 days ago from writing this review. it is not broken it yet but holy crap. This thing slams. I had to take all of the change out of my truck because it rattled so much. SOUNDQUBED FTW!
  Reviewed by:   from daphne alabama. on 1/29/2016
Rating good quality
I just got my other hds3 15 in today. Very pleased with the condition of the subs. I will be installing them today. Thanks soundqubed.
  Reviewed by:   from tuscaloosa al . on 1/19/2016
Rating Vs xxx home theater
Built new box using digital designs app and another. 6.0 ft, 4.5 ft tuned 33 4x16.5 x20" Sou nds great, was going to use RE XXX 15 but this was louder and better at much less $. My 2007 hdc312 still rocks in my tundra so wanted another aq/sound qubed
  Reviewed by:   from Columbia Mo. on 1/7/2016
Rating Hds 315
Does exactly wht it claims, same exact thing as a DD, which is a very good and expensive brand but this one is less than half their price. It sounds very deep, amazing, cery loud with the right amp, cheap ones will make its limit alot less than it could be. If you have never owned a sub or a very loud one i would recommend just getting one of these and do it all right or take it somewhere it will be done right and your ears will ring. Makes my windows flew( not at full power) break it in right and upgrade and door speakers that are not atleast 50 watt rms, or add tweeters. Looks a hell of alot sexier in person, huge as hell. If you are looking for subs to break windows this is not it thoue, it will moke them for sure but not break them, 2 would, ir the hdc levels probably. Box built 4.5 cubic ft, tuned 33-35 herts. You will not find another sub this amazing for the price, as loud if not louder than any memphis mojo or crossfire ive heard. Subs this loud and good are priced atleast $1000 so take this deal guys, everyones been impressed with my single 15' and im sure your neighbors will know who you are after jamming this one around, turns heads, and dynomat is a good idea unless you want your trunk to rattle like a snake. BUY THESE SUBS GUYS, dont go anywhere else or believe anyone saying to do otherwise. These are awesome. Thanks!(:
  Reviewed by:   from Texas. on 12/29/2015
Rating hds3 15 d4
I bought 2 and i have them wired to a 4ohm load running off of a brz1700.1 in my 2002 suburban, they are in a CRAPPY 5.2 cubic ft ported box, they are awsome, they get pretry loud for only 300rms going to EACH of them and i have a huge suv also
  Reviewed by:   from bonifay.fl. on 12/27/2015
Rating Awesome sub!!
I've owned a lot of subs in my 22 years of driving, everything from old school Soundstream SPL, Kicker, PPI, JL Audio, Diamond Audio TDX,Rockford Fosgate, Sundown... You name it I've banged it. These are THE BEST I've owned!!! I have 2 of these in a 5 cubic ft box tuned to 30hz running off a RE Audio 5000.1 in a four door f150 with the back seats removed to fit my box, amps and extra battery and they have my truck flexing like crazy. You can hear me coming a few blocks away and they're not even broke in yet. They hit low and clear. I can't believe these subs are under 200$ and are easy to rebuild if you damage them. Now I have to decide if I want to wall off the back seat area and add 2 more of these monsters. Sure I may go deaf but it'll be fun doing it. LoL. I'd recommend these subs to anyone that wants major bass without breaking the bank.
  Reviewed by:   from Nashville TN. on 12/27/2015
Rating Very impressed
my first time order form u guys i got my subs form fedex today i open then boxes i was shock how they look they look really good like how they build these subs and they give me bunch of goodies to . like the customer service to they are nice people talk to and they help u out lot keep up good work guys.
  Reviewed by:   from Whittier Nc. on 12/10/2015
Rating Very impressed!
I just recently got this 15, and I am very impressed by it. This thing is very very efficient! I have this in a custom box at 4 cubes tuned to 34hz and it sounds great. The most supposing thing is that I am only putting 500 watts to it right now till I get a q1200. I can't wait till I can hear it at full power. Get this thing and you will not be disappointed, it's well worth the cheap $170 they are asking.
  Reviewed by:   from Minnesota. on 11/4/2015
Have 4 of these on a taramp 8k clamped seeing roughly 1900 a piece, and they take it like a champ. Get stinky at times but still badass subs. Meters a 155.2. Can't beat it for the price.
  Reviewed by:   from Jacksonville Fl. on 8/20/2015
Rating I love it.
This is probably one of the most amazing subs I've ever had. It isn't the highest model or the most competitive sub on the market but this thing sure packs a mean punch. I use to have a complete Rockford fosgate system and anyone who knows anything about car audio knows they have good products. Well this hds315 blows my p3 out the water. The dms rating on this one was the peak on the other. I paid a little over 200 for the rf 15 and got half the power of this monster. I love this sub. The only down side is that it needs so much air space. I have a custom built 2.65cu box and it's way too small for this monstrosity of a sub. But when your an all out basshead box size don't matter. I'd recommend this sub and have recommended it to many people so far. I'm pretty known in my town for my system and this sub just blew me over the top. I'll probably be adding a few more of these to my system. Don't even think twice about buying this. Just get it.
  Reviewed by:   from Louisiana . on 6/11/2015
Rating I need more now..
I bought two of these bad boys to replace my hds215 and well, I hit 147.3 dB and these bad boys are hooked on Crescendo 2k. Amazing what damage these subwoofer do to my jeep. Can't wait to have 6 of theses in my jeep. #SQ4Life
  Reviewed by:   from Georgia. on 5/22/2015
Rating Holy Sh1T
First off im 17 and went from having 2 dual 12"s "the Walmart special" to having this beast of a sub. Im running a Pioneer Gm Digital series 2400 watt amp wired to 4 ohms so about 500 rms to break in, in a 5 cubic ft ported box. This sub bangs! Shakes my bones and makes my ears itch and tingle. I plan on running it at 1200watts rms at 1 ohm i know it will be amazing. Highly recommended you will be impressed.
  Reviewed by:   from Michigan . on 5/17/2015
Rating hds315
best subs Ive purchased in 5 years I have a feeling I will be keeping these for a very long time. not even fully broke in yet and two of these are monsters at only half gain on a 2400 watt amp. highly recommend building your box to actually specs these things will make people turn their heads for sure
  Reviewed by:   from Perry ok. on 4/26/2015
Rating HDS315
I have a single HDS315 running off a Sundown SAZ1500 at 1ohm. Now I opted for one of the Soundqubed Atrend enclosures to hold me over until I can get a custom built. Not too bad. I think in a custom enclosure I can pull more out of this sub. But for right now I gave it 4 stars.
  Reviewed by:   from Minot, ND. on 4/15/2015
Rating Very Impressed! ..With only one!
First off, I'm 17 and this is my second build and I must say I am very glad I chose Sound Qubed. I just got this massive sub hooked up and installed last night and I am already very impressed. It's in a 2.75 cu. ft. box (net) that's tuned to 32 Hz. This thing pounds out all the low notes! I'm running it off of a HiFonics 1100 watt amp at 1 Ohm. That amp is only temporary until I break it in, then I plan to upgrade it to the 1500 watt version;) I haven't even turned it up past half way on the bass knob and it already starts to thump. I am very pleased and will deff be buying from these guys again!
  Reviewed by:   from Monroe IA. on 3/24/2015
Rating Mr.
Great sub, Great price! Soundqubed for the win!!!
  Reviewed by:   from Cincinnati. on 3/16/2015
Rating Pretty damn good sub
I hooked it up to my 2400 watt amp and it's pretty much laughing at it, this sub sounds good but you have to feed it!!
  Reviewed by:   from Minot ND. on 3/15/2015
Rating Holy Crap!
I only have one of these subs to see how it pounded and holy crap! It blew me away, I hope to get another soon as soon as they are back in stock, I'd recommend this sub to anyone, and i proudly have the sticker on the back of my window (great quality sticker btw)
  Reviewed by:   from Baldwinsville, NY. on 3/10/2015
Rating great subs
Great subs . I would definitely tell my friends to get them #team353
  Reviewed by:   from brooksville fl . on 3/8/2015
Rating HDS 315
These subs pound! If you're looking for quality at an affordable price, you've found it with Soundqubed. Highly recommend these subs for anyone looking to add some serious bass to their ride without breaking the bank.
  Reviewed by:   from Covington, Washington. on 3/1/2015
Rating Very nice for the price.
As a long time customer of Audioque, Ive owned the entire line of HDC3's so I figured Id save some money, and try something else out. The HDS3 is a very good subwoofer for the price. I might just trust SQ with my business, as quality is still the same, and I was able to save some money lol.
  Reviewed by:   from Monahans Tx. on 3/1/2015
Rating From Kicker to SoundQubed!!!!
I went from 15" cvr kickers and got these HDS3's 15" model of course, and the side by side comparison is just funny. I literally have DOUBLE EVERYTHING that the CVR's had. I'm talking excursion room, tightness, not the weight so much (not a bad thing) but the spider wires were double in the SQ sub, and tone... just taping the cone of the subs with them in the box and its clear, that the SQ'd sub is deeper just in the thud it makes. The surround is so much beefier, and the sound qubed sub just looks.... legit. It literally makes these kickers look like a joke. What was I think buying kicker in the first place.
  Reviewed by:   from Orlando. on 2/22/2015
Rating Wow
These subs are some monsters. You won't regret buying this sub trust me.
  Reviewed by:   from Michigan. on 2/14/2015
Rating perfect
I have 2 of these in a crew cab dakota pushing 1750rms each, they get low and loud. Best sub, especially for the price.
  Reviewed by:   from detroit, Michigan . on 2/12/2015
Rating Seriously?
Heard two of these on a q2200. With the right box and power, you'll be cringing and reaching for the door handle. Stupid loud, especially for the price. When I mean stupid loud, I mean stupid loud, insane. It's one of those wtf moments when you initially hear it. Highly recommend.
  Reviewed by:   from Newport. on 1/4/2015
Rating awesome sub.
Great sub that hits hard and sounds great. Can't beat em for the price their being sold at. I am now a SoundQubed fan along with several of my car club brothers. Thanks SoundQubed for an awesome sub.
  Reviewed by:   from missouri. on 12/18/2014
Rating HDS300... Wow
I got this sub to replace a Rockford Fosgate 15" P2 and this sub isn't even broken in and it blows the RF out of the water!! Only running about 1100 watts to it and getting tons of window flex with the lows tuned at 36 Hz! Amazing deal for the price and the quality of the product! Definitely satisfied!!
  Reviewed by:   from Arkansas. on 10/22/2014
Rating sounds great
Ordered the hds to replace my hdc3 after the motor shifted, kinda just wanted to experiment since I only had a Q1200d on my hdc3 so I knew I was under powering the hdc3, installed the hds300 today and on my Q1200d (on low volume for break in) already sounds better, deeper, and louder on 1200rms than my hdc3,the price and being half the size of my hdc3 made me skeptical but boy was I wrong, dnt hesitate to buy it, 1200rms and down go hds300 wouldve given 5 stars but ive only had it a few hours
  Reviewed by:   from statesville, nc. on 9/24/2014
Rating HDS312S
LOVED these subs till one came apart. Not sure how or why. This is the second soundqubed item I have had go bad. They did stand behind the 1st one, but being from Canada shipping killed me. I just cant justify sending this sub back for warranty. I had 2 12's on a fosgate t1500bdcp, worked fine for the first few weeks. Then the rattle started. I have given up and went back to my sundown.
  Reviewed by:   from Toronto. on 9/18/2014
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