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QSC K12 12" Powered PA Speaker  

Item #: 
1274034490365
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The QSC K12 is a 12" 2-way PA speaker system boasting a 1,000W Class D power module and 75 horizontal and vertical coverage. Low frequencies extend to 48Hz (-10dB high acoustic output, 131dB peak). Th... Click To Read More About This Product

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$79999.00
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The QSC K12 is a 12" 2-way PA speaker system boasting a 1,000W Class D power module and 75 horizontal and vertical coverage. Low frequencies extend to 48Hz (-10dB high acoustic output, 131dB peak). This low-frequency extension makes the QSC K12 an ideal choice for music playback and live reinforcement of instruments, especially in venues where more directional speakers are needed. Equally at home in the role of stage monitor, the QSC K12 speaker enclosure has an angled side for use as a low-profile, horizontal wedge and a flat side for proper side-fill use.

QSC's K12 PA Speaker features a 1-3/4" HF device in its 2-way enclosure. The primary differentiator in K Series speakers is the resulting output dispersion-the K8 being the widest at 105 and the K12 the narrowest at 75. This radical approach is achievable due to a process called Directivity Matched Transition (DMT). DMT allows QSC to take advantage of a fundamental law of acoustics: smaller diameter woofers have wider coverage patterns than larger ones. The K Series matches the HF device to the LF dispersion, allowing for the smoothest and flattest frequency response possible across the entire sound field.

Add to this advanced DSP processing and an enclosure molded from ABS-a material far more rugged and sonically pleasing than conventional plastics-and the QSC K12 delivers exceptional performance in this category of loudspeakers.

Several proprietary QSC DSP technologies are incorporated into the K Series. One such technology is Digital Extension and Excursion Processing (DEEP). DEEP allows each of the K Series models to deliver levels of low-frequency extension previously impossible in enclosures of this size. Intrinsic Correction, first featured in QSC line-array technology, use dozens of spatially averaged measurements mapped to the processor to deliver smooth and accurate reproduction across the entire sound field.

Preventing amplifier clipping or overload is QSC's proprietary GuardRail technology. GuardRail closely monitors the input voltage and controls the amplifier output stage before the onset of clipping. Unlike typical clip limiters, when GuardRail is activated, the results are all but undetectable-there's none of the typical "pumping" associated with other methods. In addition, user EQ controls are provided to select between subwoofer settings (EXTSUB, VOCAL, or FLAT response).

The K12 speaker boasts other user-friendly features. For example, when the speaker is pole-mounted, the Tilt-Direct pole socket converts to a 7.5 down-tilt with a simple 180 rotation of the dial. A locking IEC power cord is included, preventing accidental disconnect during a performance. For installed applications, connecting a commonly available potentiometer to the unit's Euroblock connector allows the operator to have gain control from a remote location. Multiple K Series units can be daisy-chained together to one centralized control. Additionally, the K Series enters Standby mode after 5 minutes of inactivity, conserving power.

The entire QSC K12 package is housed in rugged and sonically friendly ABS (the sub in birch plywood) with steel grilles and easy-carry ergonomic aluminum handles.

Processing, Connectivity & Monitoring

The brain of the system is its expansive digital signal processing. While the DSP functions are optimized using Intrinsic Correction, DEEP, DMT, and GuardRail technologies (with the high-pass filter included for use with subwoofer systems), two XLR-combi inputs, each with its own Level control, are provided. Both accommodate line-level inputs and one may be switched to microphone level sensitivity. Phono (RCA) input jacks are also included for connection of consumer electronics sources. Dual XLR outputs are provided for dual "loop-thru" XLR/M connectors and a single XLR jack is available as a summed output. All 3 input sources may be used at once and mixed via the 2 Gain control knobs.

Input Panel LED indicators are provided for Power, Signal Present, Mic Level Sensitivity, and Limit annunciation. A front-mounted power LED may be disabled by means of a
rear-panel switch when desired or set so it indicates when the limit circuitry has been engaged.

Waveguide

Each K model incorporates a conical waveguide that maintains pattern control all the way down to the crossover frequency. The coverage angles of the waveguides are tailored for a smooth transition from woofer to compression driver with far less "waistbanding" or other directivity related anomalies than other products in this class.

Suspension and Mounting

The K12 2-way PA speaker may be pole-mounted, suspended, or yoke-mounted. The K12 yoke accessory kit (not included) allows for either horizontal or vertical yoke mounting, providing a flexible means of attaching K Series loudspeakers to a building structure or truss. When suspended deployment is required, M10 threaded inserts support vertical or horizontal suspension, while the integral polemount socket accommodates 35mm speaker poles for use on a speaker stand or over a sub. The pole socket is designed so that the speaker may be angled down 7.5 in order to cover the audience while keeping acoustic energy off reflective walls and ceilings.

Features Speaker configuration
  • Active/passive:Active
  • Type:Full-range
  • LF driver:12"
  • MF driver:N/A
  • HF driver:1.75" compression driver
  • Power
  • Amplifier class:D
  • Wattage:1000W continuous
  • Mixer/preamp:No
  • Audio
  • Frequency response:48Hz - 20kHz
  • Coverage pattern:75° conical
  • Max SPL:131 dB
  • Inputs
  • XLR:2 XLR/TRS
  • TRS:
  • TS:
  • RCA:2
  • Output/thru
  • XLR:2 XLR/TRS
  • TRS: N/A
  • TS: N/A
  • RCA: N/A
  • SPEAKON: N/A
  • Enclosure
  • Cabinet material:ABS
  • Width:14"
  • Height:24"
  • Depth:14"
Specifications
  • .
Warranty

GUITAR CENTER'S PRO COVERAGE
Pro Coverage gives you added warranty protection for your new gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Read More.

Pro Coverage includes
  • Accidental damage protection (new gear only)
  • Expedited repair
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended return period
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to three years from date of purchase
  • Repair authorization-toll-free by phone or via the web
  • Customer Reviews
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Review Snapshot

by PowerReviews
QSCK12 12" Powered PA Speaker
 
4.8

(based on 100 reviews)

Ratings Distribution

  • 5 Stars

     

    (88)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (1)

94%

of respondents would recommend this to a friend.

Pros

  • Good audio (30)
  • Easy to use (23)
  • Durable (21)
  • Versatile (21)
  • Compact (19)

Cons

No Cons

Best Uses

  • Outdoor events / games (21)
  • Performances (19)
  • Pro audio / DJ / mixing (15)
  • Home studio (8)
  • Amateur recording (4)
    • Reviewer Profile:
    • Experienced (23), Professional musician (6)

Most Liked Positive Review

 

Best Powered Speaker on the Market for its Size!!!

Being a mobile DJ for 26 years and having used several sets of passive speakers in that time, I wanted to make sure I did my homework before I made the leap into powered...Read complete review

Being a mobile DJ for 26 years and having used several sets of passive speakers in that time, I wanted to make sure I did my homework before I made the leap into powered speakers. My criteria for the powered speakers was that they: - needed to be under 45 lbs. - have enough power to do a mid-to-large event - sound good when cranked up - have the features I needed (flexible inputs, daisy chaining, etc.). - have a good reputation (quality and warranty) After compiling a list of prospective models, I took a weekend and listened to the models side-by-side (luckily, my local Guitar Center had just about all of them on display for me to test). For each speaker comparison, I: - set all EQ to flat in the source, mixer, and on the speaker itself. - made sure the level was compensated so that the loudness (DB output) to my ears would be the same when I switched between the speakers. - positioned myself in the same position and distance from each speaker - played the same source material in each (and varied the source material as necessary to get a balanced feel for what the speaker could do). - played the speakers at varying volume levels I tried all the top brands and models: Mackie SRM450v2, EV (SXA100+, EV ELX112P), JBL (EON515XT, PRX612M), Yamaha (MS400, DXR12), Behringer (VP1220D, B112D, B912Neo), QSC K12, and Peavey Impulse 12D. During the testing, for any two given speakers, I would pick a better sounding speaker and use that speaker in my next comparison. After I reached the QSC K12 in my testing, I liked the sound so much that I used that as my reference speaker from that point on and went back and compared it against all of the speakers I was testing. It was after this extensive exercise that I determined that the QSC K12, hands down, was the winner (it was also the most expensive, but I wanted to find the best). The reasons I chose the QSC K12: - The sound was the most balanced and natural sounding of any PA speaker I have heard (powered or not). At mid-to-high volumes, most Pro sound speakers have a tendency to overemphasize the high-end and upper mid-range frequencies, which are precisely the ones that cause ear fatigue when you are exposed to them for any length of time. On the K12s, you can particularly note the difference when playing Jazz and Big Band music (for example, Frank Sinatra's vocals sounded neutral and did not exhibit a megaphone/honky quality to it found on the other speakers). - The bass was clean and tight, especially when enabling the deep switch setting on back. No other speakers (with the exception of the Yamaha MS400) could match it's bass response at any volume in this mode. - They come with a 3-year warranty. NOTE: Unlike QSC's stand-alone amplifiers (like their PLA series) which are made in the USA and have a 6-year warranty, these speakers are made in China and have a 3-year warranty. A few weeks after I bought the K12s, I decided to put them to a test at my next DJ event (a mid-size wedding of 175 people) that was held in a converted airplane hangar. As you can imagine, the environment was not well-suited for acoustics (30 foot steel ceiling, cement floor, glass on the entire back wall). However, these speakers turned out to be ideal in such a live environment. Because of their natural sound, they did not generate the ear fatigue that would normally occur with other speakers in this setting. They were also slightly less prone to feedback than what I am used to. Needless to say, I would highly recommend these speakers to anyone who wants the most natural sound from a turnkey sound system (i.e., one where you don't have to contend with separate speakers, amps, equalizers, phase correction, etc.).

VS

Most Liked Negative Review

 

xlr cable falls out in wedge position

4
really want to love these speakers, but used as wedges on stage, our cables FELL OUT of their combo neutrick jacks due to vibrations. it is a very loose fit. a...Read complete review

4
really want to love these speakers, but used as wedges on stage, our cables FELL OUT of their combo neutrick jacks due to vibrations. it is a very loose fit. a little extra, and they could have installed locking connectors. silly place to cut costs. tried to get them fixed, and was met with disbelief, even though others complain of the same problem online. cannot replace w/ locking connectors, as they have a different layout (into the pcb).

otherwise, they are nice. just stupid that a low priced part makes this such a problem.

Reviewed by 100 customers

Displaying reviews 1-10

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5.0

Worth every penny!

By Winston G

from APO

About Me Experienced

Verified Buyer

Pros

  • Clear Sound
  • Compact
  • Durable
  • Easy To Use
  • Lightweight
  • Versatile

Cons

    Best Uses

    • Events
    • Mobile DJ
    • Performances

    Comments about QSC K12 12" Powered PA Speaker:

    Bought one of these back in 2014 and did not really get to use them until recently this past summer at a fest. Needless to say the sound quality was well within my expectations. Used only one!! Had to turn them down because these were drowning out the other guys around me. Including the dance area with full towers. Power wise they are more than sufficient. Need more power then get a few more. Added another on yesterday. Now just waiting to add a pair of subs to the ensemble, just cause.

     
    1.0

    Speakers rattle after 3 months of usage.

    By Dj Rozay

    from Brunswick Ohio

    About Me Professional Musician

    Pros

      Cons

      • Breaks Easily
      • Bulky/Heavy
      • Pricey / Poor Value

      Best Uses

      • Mobile DJ

      Comments about QSC K12 12" Powered PA Speaker:

      I bought 2 of these speakers and paired them with a KW-181 subwoofer. It was great sound for the 4 wedding I used these at. The 5 wedding not so much. We got there and setup our speakers and lights and did a test phase. We noticed on some songs you can hear a rattle noise in the back of both speakers. I t was almost like something is loose. I contacted QSC and they told me to take to a repair center. The closest repair center to me wants money for each speaker to work on them. QSC said I can send them back but I will have to pay shipping which is an arm and a leg from Ohio to California. I am very disappointed in how these held up and how QSC is treating me. Their customer service is awful. I wish guitar center would swap these out for me and they can send them back to QSC. I don't know what to do as a business owner.

       
      5.0

      great product horrible service

      By The Quarry

      from Ashburnham ma

      About Me Experienced

      Verified Buyer

      Pros

      • Clear Sound
      • Compact
      • Durable
      • Easy To Use
      • Lightweight
      • Versatile

      Cons

        Best Uses

        • Events
        • Performances

        Comments about QSC K12 12" Powered PA Speaker:

        incredible product best on the market.

         
        5.0

        So far, so good!

        By Michael

        from undisclosed

        Verified Buyer

        Comments about QSC K12 12" Powered PA Speaker:

        I bought these based on a pile of positive reviews, and I've only used them once so far, but they sound fantastic. The locking power cables are a nice touch, and an great example of what you get for spending a few bucks more.

         
        5.0

        Great for KBs

        By JP

        from Los Angeles

        About Me Professional Musician

        Verified Buyer

        Pros

        • Clear Sound
        • Compact
        • Durable
        • Easy To Use
        • Versatile

        Cons

          Best Uses

          • Performances

          Comments about QSC K12 12" Powered PA Speaker:

          with Keyboards mix effects

           
          5.0

          Best price and in stock. That's how ya do biz!

          By SoundMonkey

          from Seacoast, NH and greater Boston area

          About Me Experienced

          Verified Buyer

          Pros

          • Clear Sound
          • Compact
          • Lightweight
          • Versatile

          Cons

            Best Uses

            • Events
            • Mobile DJ
            • Performances

            Comments about QSC K12 12" Powered PA Speaker:

            I'm a bass player in a pile of bands locally and run sound for pro GB bands 70 gigs a year

             
            5.0

            I would buy this item again

            By Dave

            from Owingsville , KY.

            About Me Experienced

            Verified Buyer

            Pros

            • Clear Sound
            • Durable
            • Versatile

            Cons

              Best Uses

              • Events
              • Mobile DJ
              • Performances

              Comments about QSC K12 12" Powered PA Speaker:

              I purchased the QSC K12 as a scratch n dent item and it arrived exactly as described and in much better condition than I thought it would be. Saved a TON of money for only a few very small cosmetic issues that you can hardly see. I would highly recommend the speaker as it simply has an amazing sound ans is very LOUD!!

              (1 of 1 customers found this review helpful)

               
              5.0

              i would buy it again

              By mt

              from Yorba Linda,CA

              About Me Novice

              Verified Buyer

              Pros

              • Clear Sound
              • Compact
              • Durable
              • Easy To Use
              • Lightweight
              • Versatile

              Cons

              • none

              Best Uses

              • Events

              Comments about QSC K12 12" Powered PA Speaker:

              for singing events

              (1 of 1 customers found this review helpful)

               
              5.0

              Very satisfied.

              By SHERMAN

              from undisclosed

              Verified Buyer

              Comments about QSC K12 12" Powered PA Speaker:

              This is one of two that power sound for an outdoor of about two acres. The tone is very clear and powerful. Sound is pushed well beyond the two acre area. I use them with a Soundcraft board.

               
              5.0

              I would buy this speaker again

              By Tien

              from undisclosed

              Verified Buyer

              Comments about K12 12" Powered PA Speaker:

              This speaker sounds so great.

              Displaying reviews 1-10

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