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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... Read More

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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

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  • Customer Reviews
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Review Snapshot

by PowerReviews
QSCK12 12" Powered PA Speaker
 
4.8

(based on 59 reviews)

Ratings Distribution

  • 5 Stars

     

    (53)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Good audio (7)
  • Easy to use (6)
  • Compact (5)
  • Versatile (5)
  • Durable (4)

Cons

No Cons

Best Uses

  • Outdoor events / games (5)
  • Performances (3)
  • Pro audio / DJ / mixing (3)
    • Reviewer Profile:
    • Experienced (4)

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

 

Boomy bass, nasal vocals

There is lots of bass, but it is boomy rather than tight--probably mostly because of the small cabinet. To my ears, the vocals were quite nasally. I ended up getting Yamaha...Read complete review

There is lots of bass, but it is boomy rather than tight--probably mostly because of the small cabinet. To my ears, the vocals were quite nasally. I ended up getting Yamaha DSR115 speakers which had much tighter bass and much more natural-sounding vocals

Reviewed by 59 customers

Displaying reviews 1-10

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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

      (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

       
      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.

       
      5.0

      Best speakers for home karaoke

      By The Do

      from Keller, Texas

      About Me Experienced

      Pros

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

      Cons

        Best Uses

        • Events
        • Home Studio
        • Performances

        Comments about QSC K12 12" Powered PA Speaker:

        I really like this speaker , I find it best for my home karaoke, clear sound and good bass.

         
        4.0

        You get what you pay for!

        By Pastor John

        from The Building, Suisun City, Ca

        About Me Experienced

        Verified Buyer

        Pros

        • Clear Sound
        • Easy To Use
        • Lightweight
        • Versatile

        Cons

          Best Uses

            Comments about QSC K12 12" Powered PA Speaker:

            I've tried other less expensive brands in the past, and paid for it in the long run. QSC K12 are top quality and changed the sound quality in our sanctuary. I can clearly see why these are more expensive than the rest, but the quality is unmatched by berhinger, Mackie, JBL, and EV.

             
            5.0

            Worth the money!

            By DJ Niku

            from Stratford CT

            About Me Novice

            Verified Buyer

            Pros

            • Clear Sound
            • Compact
            • Durable
            • Easy To Use

            Cons

              Best Uses

              • Events
              • Mobile DJ

              Comments about QSC K12 12" Powered PA Speaker:

              I have used these speakers for parties (up to 200 people) however, the number of people should not be the only factor as the size of the venue/room matters a lot as well. These speakers are very loud and clear and have the right bass that goes along with them. If you are looking for the "night club bang", then you need to get the woofer to complement them. They lean to be a bit on the heavy side, especially when you lift to put them on the stands but the handles make that process a bit easier. The three functions (deep bass, Normal, Low) are very helpful. Lock in functions for power cord and XLR cables is also very good and seems pretty secure. I would encourage you to go and see them/play with them at the store (Guitar Center) and judge for yourself how these sound and how they compare to other brands. I have looked into other speakers with the same specs, and QSC's definitely stand out. They are on the expensive side but if you wait for a deal (20% off during Christmas time), they are well worth the money. I would buy them again.

              (1 of 1 customers found this review helpful)

               
              5.0

              Just AMAZING!

              By DJ Niku

              from Stratford CT

              About Me Experienced

              Pros

              • Clear Sound
              • Durable
              • Easy To Use

              Cons

                Best Uses

                • Events
                • Mobile DJ

                Comments about QSC K12 12" Powered PA Speaker:

                You get what you pay for. Don't let the price of this speakers bring you down. The sound is crystal clear and the options are there for you to run with (flat, Normal, high bass). Go listen to them in the store to get an idea as to how good these speakers are. THEY WILL DO YOU GOOD! If you can afford them and they are within your price range, don't think twice. And....don't take my word for it, take the 50+ people's thoughts from the reviews!

                (0 of 2 customers found this review helpful)

                 
                5.0

                This is Arun from desplaines IL Qsc k12. Is a great speaker,

                By Arun

                from Desplanis IL

                Comments about QSC K12 12" Powered PA Speaker:

                This is Arun, Qsc k12 is a great speaker, this speaker small and big sound.

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