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KS Series Active Subwoofers – Bass Your Way!play button

KS Series Active Subwoofers – Bass Your Way!

Tech Talk- Keeping Bass in its place: KS Series Cardioid Subwoofer Solutionsplay button

Tech Talk- Keeping Bass in its place: KS Series Cardioid Subwoofer Solutions

QSC KS212C K Cardioid Dual 12inch Powered Subwooferplay button

QSC KS212C K Cardioid Dual 12inch Powered Subwoofer

QSC

collapse expand iconDescription

The QSC KS212C K cardioid dual 12" powered subwoofer delivers thunderous low end in a roadworthy package. This innovative powered sub is ideal for mobile performers, DJs and anyone seeking studio-quality bass in a portable form factor. Sporting dual 12" long-excursion drivers and a cardioid dispersion pattern, the KS212C provides tight, accurate bass response and maximized output.

Dual High-Excursion 12" Woofers for Chest-Thumping Lows

At the heart of the KS212C are two custom-designed 12" long-excursion drivers engineered to handle 3600W of power and move tons of air, each arranged in a 6th order band pass chamber. This allows for 15dB more output at the front of the cabinet than at the back. The woofers' stiff, lightweight cones and butyl rubber surrounds allow for an impressive frequency response down to 30Hz for rich, full bass.

Cardioid Dispersion Minimizes Wall Interference

The KS212C features a cardioid dispersion pattern, with a narrow coverage area towards the front and broad coverage to the sides and rear. This focused output reduces interference from walls and other surfaces, resulting in tighter low-end response and maximized bass clarity, even in small rooms. The cardioid design also allows multiple KS212C's to be stacked together without comb filtering or phase cancelation issues.

A Roadworthy Sub

Weighing in at 88 pounds, the KS212C's rugged cabinet is covered in QSC's signature scratch-resistant, black-textured finish and protected by metal grilles. Recessed handles on the sides and a pole mount receptacle on the bottom provide flexible mounting options on stage or in the DJ booth.

Intuitive Back Panel Controls

A back-mounted LCD panel offers simple control over the KS212C's parameters. Adjust the crossover frequency, polarity and limiter threshold to perfectly match the sub to your main speakers. There are also XLR, TRS and RCA inputs as well as XLR loop-thru outputs. Power the KS212C via the IEC cable and you're ready to unleash its thunderous low end. Available now at Guitar Center, get your KS212C today.

QSC KS212C K Cardioid Dual 12" Powered Subwoofer

collapse expand iconFeatures

  • Innovative design achieves cardioid sound coverage

  • Powerful Class-D amplification with 3,600W peak output
  • Dual 12" long-excursion drivers
  • Dual 6th order band-pass design
  • 15dB SPL attenuation front-to-rear

collapse expand iconSpecs

Speaker Configuration
  • Active/passive: Active
  • Type: Subwoofer
  • LF driver: 2 x 12"
  • MF driver: Not applicable
  • HF driver: Not applicable
Power
  • Amplifier class: D
  • Wattage: 3,600W (peak)
  • Mixer/preamp: N
Audio
  • Frequency response: 44Hz–104Hz
  • Coverage pattern: Cardioid
  • Max SPL: 132dB
Inputs
  • XLR: 2 combo
  • TRS: Not applicable
  • TS: Not applicable
  • RCA: Not applicable
  • speakON: Not applicable
Outputs
  • XLR: 2 combo
  • TRS: Not applicable
  • TS: Not applicable
  • RCA: Not applicable
  • speakON: Not applicable
Enclosure
  • Cabinet material: Wood
  • Width: 15"
  • Height: 24"
  • Depth: 33"
  • Weight: 88 lb.

collapse expand iconReviews

4.43

14 Reviews

82%

of respondents would recommend this to a friend

11514031211

Most Liked Positive Review

5

Could not belive the power

I WANTED to hate this sub, I wanted it to be sub par, I wanted it to fail and sound like every other dual 12 out there. But holy mother of god this thing exceeded all of my expectations. When they said "3600 W" I thought they meant 900 rms, 3600 peak. I actually took the amplifier out of the sub and hooked it up to an amp dyno. Power to each of the cones (to 1% THD) is a solid 1200w with dynamic peaks up to 1800w per cone. So in reality the program power is about 2400w which is a LOT of power. The cardioid pattern is NO JOKE either, all of the bass energy is reflected forward. I had this sub set up at a gig (a rave in a 200 person room) under a table cloth paired with two qsc k12.2 tops (which I would also recommend) and one of my friends asked me what I was running, I told him to guess, he guessed I had my three turbosound IQ15b subs under the table. When I showed him the one qsc his jaw just about hit the floor. I then had him step into the booth and he became further amazed at the lack of bass energy on stage. We could have a conversation without raising out voices at all. Cannot stress how good this sub is.

VS

Most Liked Negative Review

2

Disappointed with sub

I bought one of this sub in 11/18 while playing It for about an hour it smells like a burnt iron and the limit light will trip on. I also had the gain at 12 0: clock my set up are as follows pioneer SZ2 and QSCk10.2 tops with one KS212c sub I also have 2 QSC KW181 and the limit light never trip on. I called QSC about the problem and they told me probably I am over driving the sub which I am not. I tried another Dj controller and the same thing happened I have to turn the gain on the back of the sub to 10:o clock for the sub not to limit

Filters
Best Uses
  1. Pro Audio / DJ / Mixing10
  2. Performances4
  3. Outdoor Events / Games3
  4. Home Studio1
  5. Professional Recording1
Cons
  1. Pricey / Poor Value3
  2. Bulky/Heavy1
  3. Limited Functions1
  4. Unreliable1
Describe Yourself
  1. Experienced7
  2. Professional Musician3
  3. Novice1
Pros
  1. Good Audio9
  2. Easy To Use8
  3. Durable5
  4. Versatile5
  5. Compact4

Reviewed by 14 customers

  • Yes

    5

    submitted3 years ago

    byTotalniceness

    fromFlorida

    Following up on my post from 2 years ago, had my unit repaired by Jayden electronics in Orlando they had to replace my amp. This sub is a killer, in my opinion it sound better than my kw181 but not as good as my Ks118. I sold my 2 kw 181

  • Nice smooth bass

    4

    submitted5 years ago

    byDjgru

    fromVa

    I had two, they are smooth and provide a great sound...just not what I wanted as a DJ. Brought them back and got two kw181s. Much deeper hard hitting sound but now lots of bass comes to the rear. The 181 are great but bass drops off at maybe 50'? I've got my eye on the new 3600 watt 18s. I see they are hitting hard with bass. Two of the

  • Disappointed with sub

    2

    submitted5 years ago

    byDj Totalnicness

    fromFlorida

    I bought one of this sub in 11/18 while playing It for about an hour it smells like a burnt iron and the limit light will trip on. I also had the gain at 12 0: clock my set up are as follows pioneer SZ2 and QSCk10.2 tops with one KS212c sub I also have 2 QSC KW181 and the limit light never trip on. I called QSC about the problem and they told me probably I am over driving the sub which I am not. I tried another Dj controller and the same thing happened I have to turn the gain on the back of the sub to 10:o clock for the sub not to limit

  • Low, tight bass.

    5

    submitted5 years ago

    byJake

    fromWI

    Very powerful. Maybe the 18" has a lower frequency than 2 -12" speakers but this baby moves air. Pretty heavy but the wheels take the sting out of moving it. Used one sub with 4 K12.2s and it was huge.

  • I extremely recommend

    5

    Verified BuyerVerified Buyer

    submitted6 years ago

    byROBERTO

    fromUndisclosed

    A High Quality Subwoofer Price should never be a issue

  • This Sub is the truth! I would reccomend this to anyone.

    5

    submitted6 years ago

    byBig Sed

    fromTexas

    I use it for mobile DJing and it's a crowd mover. Music sound really well with the low bass this sub delivers.

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collapse expand iconQ&A

Have a question about this product? Our expert Gear Advisers have the answers.

  • submitted3 years ago

    asked byThat Guy From Brooklyn

    fromBrooklyn, NY

    Does this Subwoofer come with a loudspeaker extension pole?

    Does this Subwoofer come with a loudspeaker extension pole?

    Open Reply - Ronald
    It does not.

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