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Home > Subwoofers > HDS300
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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 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 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 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 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
Rating Sound qube return policy sucks!
Hi. After being talked into sound qube by a buddy I ordered a hds300 15. Sound real good at first. It 2400 max. I have a brutus 1200 on it only up 15% to break in. I have 2 children and barley play them loud. But yet for some reason the coil came unglued and the come stiffed up. I call the sound qube rep or what ever he is and he was just rude and tells me the warrenty probally won't cover it and to pay 30$ dollars to ship it back and have to pay to have it fixed. Almost as much as a new speaker cost. Anybody else would have just swapped it out. Good thing they only sent one sticker. It would be hard to peel off more than 1. I hope when I get enough money to ship it back they are more of a help than they were on the phone
  Reviewed by:   from Albion michigan. on 9/17/2014
Rating best subs for the price
these things are monsters i used to have the re audio equivalent to these subs and the amp to match and they were way over priced and i was very unhappy with the quality of re audio but just picked up 2 hds315's and q.1 2200d amp to power them and man they hit the lows and the sound quality is way better than that of re audio i would defiantly recommend soundqubed to any one looking for a quality woofer or amp they are amazing pieces of equipment
  Reviewed by:   from fort worth tx. on 9/12/2014
Rating Things are beast
I have just purchased 2 hds3 15s and they are incredible!! Construction is very strong on these subwoofers and all though they are a very stiff sub they sound great can't wait to see what these things really got would definitely reccomend to anyone on a budget or just flat out want top of the line woofers
  Reviewed by:   from Michigan . on 9/8/2014
Rating im impressed every time i get in my truck.
I have two of these HDS315 subs in my single cab f150. In a box that is 5.8 cubic feet before displacement, tuned to 33 Hz. I started these subs at around 300 watts each to give them time to break in and even so. These sounded better and louder than my old 15s at full power. Now I just adjusted the gains to get around 900 watts per sub and wow. I never thought I would turn down my bass but these things slam. I set my head unit for bass to -2 and these still turn heads. I cannot believe the performance out of a 170$ sub
  Reviewed by:   from logan ohio. on 8/31/2014
Rating hdc300
Fast shipping i love my new sub,great customer service. I would reconmend to soundqubed products to anyone. Great everything.
  Reviewed by:   from gary,in. on 8/23/2014
Rating bump for your buck
I bought one of them to try them out I'm am super impressed well worth the money the down fall is I ordered another one just as soon as they went out of stock so now I'm waiting for my second one. I would refer soundqubed to any of my friends
  Reviewed by:   from sapulpa oklahoma. on 7/15/2014
Rating Incredible! Especially for the money!
The HDS315 is the PERFECT budget sub, but its performance is beyond that of a budget sub. They are amazing woofers. Would run them forever.
  Reviewed by:   from IL. on 6/10/2014
Rating Wow.. Just wow
My friend pointed me towards soundqubed because i'm a penny pincher kind of guy, but let me tell you, this is no cheap stuff, in a tiny, temporary, 1 cubic foot ported box, this thing flexes my windows with the lows, paired with a q1-1200, you CANT go wrong. This setup slams harder than my friends 2 JL 12s on a JL 1000 watt. I honestly can't say enough about this company, the products are quality, the customer service is on point, and not to mention the prices!! Soundqubed will be getting the rest of my money when it comes to car audio when i upgrade to an HDC3.15 and a 2200. Don't even hesitate buying this or the 12, you won't be dissappointed.
  Reviewed by:   from Florida. on 6/10/2014
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