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QSC K8 8" Powered PA Speaker   

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The QSC K8 8" powered loudspeaker features a 1000-watt Class-D power module, and its extremely compact size won't intrude on audience sightlines. Its...Click To Read More About This Product

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OVERVIEW

Amazingly powerful output in a compact cabinet ideal for crowded stages.

The QSC K8 8" powered loudspeaker features a 1000-watt Class-D power module, and its extremely compact size won't intrude on audience sightlines. Its 105 wide dispersion is a major advantage when the audience is up close to the loudspeaker. Low frequencies extend to 61Hz (-10dB) and the unit outputs an amazing 127dB.

QSC's K8 speaker features a 1-3/4" HF device in its 2-way enclosure. The primary differentiator 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 K8 Speaker delivers exceptional performance in this category of loudspeakers.

Several proprietary QSC DSP technologies are incorporated into the K8 PA speaker. One such technology is Digital Extension and Excursion Processing (DEEP). DEEP allows the K8 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 K8 speaker boasts other user-friendly features. For example, when the PA 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 QSC K8 Speaker enters Standby mode after 5 minutes of inactivity, conserving power.

The entire PA package is housed in rugged and sonically friendly ABS (the sub in birch plywood) with steel grilles and carry-friendly 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 QSC K8 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 K-Series 2-way PA speaker may be pole-mounted, suspended, or yoke-mounted. The K8 yoke accessory kit (not included) allows for either horizontal or vertical yoke mounting, providing a flexible means of attaching The 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 pole mount 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
  • 1,000 watt, efficient and lightweight Class D power module
  • Lightweight (27 lb.)
  • Professional appearance and rugged construction
  • Directivity Matched Transition (DMT) and Intrinsic Correction DSP tuning for accurate, undistorted performance across the entire sound field
  • GuardRail technology discreetly protects the system from damaging overload
  • DEEP mode for enhanced low-frequency extension without a subwoofer
  • Locking IEC power cable
  • XLR and 1/4" connectors
  • Phone Mic/Line and Line inputs with Loop-thru connectors and independent level controls.
  • Phono (RCA) inputs
  • Three 2-way models”each with coverage pattern optimized to match the LF driver
  • Front mounted LED may be switched off or indicate "LIMIT" or AC Power On
  • Dual angle, 35 mm pole socket with Tilt-Direct allows the speaker to be angled down to put the energy on the audience instead of the back wall
  • 1-3/4" voice-coil compression driver
  • High Pass Filter for use with subwoofers
  • 1,000 watt subwoofer, efficient and light-weight Class D power module
SPECIFICATIONS

K8 8" Powered PA Speaker

  • Amplifier Power: 1000W Class D
    Transducers: 8" LF, 1-3/4" HF
    Coverage Pattern: 105 conical
    Frequency Response: 61Hz-20kHz
    Max SPL: 127dB
    Operating Voltage: 85-275 VAC @ 50-60Hz
    Unit Dimensions: 11" W x 17-7/10" H x 10-3/5" D
    Weight: 27 lb.
Reviews
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Review Snapshot

by PowerReviews
QSCK8 8" Powered PA Speaker
 
4.7

(based on 21 reviews)

Ratings Distribution

  • 5 Stars

     

    (18)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Good audio (9)
  • Easy to use (8)
  • Compact (7)
  • Lightweight (6)
  • Durable (5)

Cons

No Cons

Best Uses

  • Outdoor events / games (7)
  • Performances (7)
  • Pro audio / DJ / mixing (4)
    • Reviewer Profile:
    • Professional musician (6), Experienced (4)

Most Liked Positive Review

 

Extremely Powerful

I just switch from my Bose L1 Model 2 to this amazing speaker ( I got tired for carrying to many pieces, I do love Bose sound ) and to be honest, if i...Read complete review

I just switch from my Bose L1 Model 2 to this amazing speaker ( I got tired for carrying to many pieces, I do love Bose sound ) and to be honest, if i compare only one of these speakers to Bose, I dont missed Bose at all. It has a very clean sound, punchy and my voice and guitar just sound espectacular. I just use One speaker with a TC Helicon Voicelive 2 without a mixer for my small to mid size venues, thats it!!!! You just have to try it!!

PS: Sorry for my english

VS

Most Liked Negative Review

 

NOT MONITORS!!!!!!

These speakers unquestionably sound amazing, but what reason would they have for not making these speakers function as monitors...? I didn't even think to ask, and now I have to pay for...Read complete review

These speakers unquestionably sound amazing, but what reason would they have for not making these speakers function as monitors...? I didn't even think to ask, and now I have to pay for return shipping!!!! Not happy about that.

Reviewed by 21 customers

Displaying reviews 1-10

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5.0

Fantastic Sound and Quality in Small Package

By abpanman

from Dallas, TX

About Me Professional Musician

Verified Buyer

Pros

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

Cons

    Best Uses

    • Events
    • Performances

    Comments about QSC K8 8" Powered PA Speaker:

    I purchased the K8 as an open box model having purchased one previously. I figured the quality would be fine and it was. The QSC K series speakers are fantastic. Great, powerful sound in all of them. I really like the K8 since the dispersement pattern is wider and can cover more area in a small room. I do mostly solo or duo gigs and frequently one of the K8's provides more than enough sound. If you are doing larger rooms, go with the K10 or K12. These speakers are super easy to use and versatile. Not too big that they break your back hauling around. I can't recommend them enough.

    (1 of 4 customers found this review helpful)

     
    2.0

    NOT MONITORS!!!!!!

    By S McNown

    from Kansas City

    About Me Professional Musician

    Pros

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

    Cons

    • Limited Functions

    Best Uses

      Comments about QSC K8 8" Powered PA Speaker:

      These speakers unquestionably sound amazing, but what reason would they have for not making these speakers function as monitors...? I didn't even think to ask, and now I have to pay for return shipping!!!! Not happy about that.

       
      5.0

      Don't make any better for compact sound

      By Miller

      from mt airy nc

      About Me Experienced

      Verified Buyer

      Comments about QSC K8 8" Powered PA Speaker:

      Have used K series many times....top of the line for affordable price

       
      5.0

      yes i would buy more of these

      By fiddler

      from orlando fl

      About Me Professional Musician

      Verified Buyer

      Pros

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

      Cons

        Best Uses

        • Events
        • Performances

        Comments about QSC K8 8" Powered PA Speaker:

        best ever. beats sound of my bose

         
        4.0

        Solid Speaker

        By Omega Starr

        from Allen, TX

        About Me Experienced

        Pros

        • Clear Sound
        • Easy To Use
        • Versatile

        Cons

          Best Uses

          • Events
          • Mobile DJ
          • Performances

          Comments about QSC K8 8" Powered PA Speaker:

          Purchased a pair of K8 and the clarity and the power are great. This speaker has performed well so far.

           
          5.0

          Best speakers on the market.

          By Frenchy

          from Dover Ohio

          About Me Experienced

          Ask me a question

          Pros

          • Clear Sound
          • Compact
          • Easy To Use
          • Lightweight

          Cons

            Best Uses

            • Events
            • Mobile DJ

            Comments about QSC K8 8" Powered PA Speaker:

            I already had the K10's, adding these makes us more versitle. They sound great a must buy!

            (2 of 2 customers found this review helpful)

             
            5.0

            Un-frickin-believable

            By Florida DJ

            from Southflorida

            About Me Professional Musician

            Ask me a question

            Pros

            • Clear Sound
            • Compact
            • Lightweight
            • Sound Quality

            Cons

            • none

            Best Uses

            • Mobile DJ
            • Performances

            Comments about QSC K8 8" Powered PA Speaker:

            I own a pair of K-12's that are great. I bought the K8's for smaller venues. I could not believe the sound coming out of the small box. QSC hits another home-run.

             
            5.0

            I'm ready for more of them

            By Hooligan

            from Sarasota Fl

            About Me Experienced

            Pros

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

            Cons

              Best Uses

              • Events
              • Performances

              Comments about QSC K8 8" Powered PA Speaker:

              We use K8s as mains in smaller clubs and don't use the Ksub until the crowd reaches 150 or more. Two K8s and two K10s and the Ksub did a great job on an outdoor gig. We have also added them for monitors quite successfully. I also have one plugged into my television.

              (4 of 4 customers found this review helpful)

               
              5.0

              The QSC K8 is awesome

              By Keyplayer

              from manitoba

              About Me Professional Musician

              Pros

              • Clear Sound
              • Compact
              • Easy To Use
              • Lightweight

              Cons

                Best Uses

                • Events
                • Home Studio
                • Mobile DJ
                • Performances

                Comments about QSC K8 8" Powered PA Speaker:

                This is fantastic, it is replacing a Yorkvile NX55p. I have been giging for 25 yrs and have used Peavey keyboards amps, Yorkville active monitors, various amp/speaker combo's and a variety of other odd and ends. Going from a 12" to an 8" LF driver was a bit concerning to me until I turned it up. It easily matches the volume of the 55P (and that is considerable) but with quite a bit more detail in the mids and highs. I did lose some overall bottom end, but honestly I rolled off most of the bottom end as the 5p are a bit boomy. For vocals and keys, this is hardly worth mentioning as a "problem"...it isn't. As a stage monitor I am giving up nothing except the size and weight of a larger active cabinet and gaining a much better vocal monitor. Even heavily ditorted hammind sound great through this. I don't know the physics or technical info that makes this tiny speaker sound much larger than it is, but I am glad it does...well done QSC. (former Yorkville fan)

                (9 of 9 customers found this review helpful)

                 
                5.0

                Extremely Powerful

                By Bengie Oyola

                from Puerto Rico

                About Me Professional Musician

                Pros

                • Clear Sound
                • Durable
                • Easy To Use
                • Lightweight
                • Lots of power
                • Nice Size

                Cons

                • No Reverb onboard

                Best Uses

                • Events
                • Performances
                • Solo or Duo Acts

                Comments about QSC K8 8" Powered PA Speaker:

                I just switch from my Bose L1 Model 2 to this amazing speaker ( I got tired for carrying to many pieces, I do love Bose sound ) and to be honest, if i compare only one of these speakers to Bose, I dont missed Bose at all. It has a very clean sound, punchy and my voice and guitar just sound espectacular. I just use One speaker with a TC Helicon Voicelive 2 without a mixer for my small to mid size venues, thats it!!!! You just have to try it!!

                PS: Sorry for my english

                Displaying reviews 1-10

                Back to top

                Previous | Next »

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