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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 22 reviews)

Ratings Distribution

  • 5 Stars

     

    (19)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Good audio (10)
  • Easy to use (9)
  • Compact (8)
  • Lightweight (7)
  • Durable (5)

Cons

No Cons

Best Uses

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

Most Liked Positive Review

 

Worth every penny, all day & all night

These have amazing clarity, power and projection for their diminutive size. We installed them in a nightclub where they have been rockin' LOUD 14 hours a day for over a year. Anyone who...Read complete review

These have amazing clarity, power and projection for their diminutive size. We installed them in a nightclub where they have been rockin' LOUD 14 hours a day for over a year. Anyone who knows speaker-design understands that laws of physics cannot be broken. These come as close as any speaker design we have tested. Our tests show they perform exactly as stated in the literature. You can check the specs for yourself. We also disassemble new units to see what's under the hood. QSC uses expensive super-high-quality drivers, and every pro knows about QSC amps. Don't forget that when you buy these, you are getting a QSC 1000-watt amp in the bargain. Anyone who tries to compare these to bargain-brands is deaf and ignorant. These are a superb value in every respect, especially if you install hard-working sound-systems for a living and YOUR reputation is on the line. We have NEVER had a call back or a failure with QSC products. QSC has improved OUR bottom line by making reliable great-sounding speakers to go with their bullet-proof amps. These are worth every penny and then some. If you have to carry your own gear, then they are priceless. Dr. Decibel has spoken.

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 22 customers

Displaying reviews 1-10

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(14 of 16 customers found this review helpful)

 
5.0

correction

By RobPaper

from NY, NY

Comments about QSC K8 8" Powered PA Speaker:

to the guy who said they have no mids...they are flatter than any speaker on the market in this price range. he said they only project narrow in front, also not true...the K8's have the widest dispersion of any speaker QSC makes. and to compare it to a behringer is absolutely ridiculous. for the same money you can go get two behringer 12's that are 400 watts each and sound like crap compared to one QSC K8. the K8 is lighter and smaller than one behringer. so if you want to lug around a bunch of crap and show everyone how much money you saved (zero), then go get the behringer. i mean they are the same thing right?

(10 of 10 customers found this review helpful)

 
5.0

Worth every penny, all day & all night

By Anonymous

from Undisclosed

Comments about QSC K8 8" Powered PA Speaker:

These have amazing clarity, power and projection for their diminutive size. We installed them in a nightclub where they have been rockin' LOUD 14 hours a day for over a year. Anyone who knows speaker-design understands that laws of physics cannot be broken. These come as close as any speaker design we have tested. Our tests show they perform exactly as stated in the literature. You can check the specs for yourself. We also disassemble new units to see what's under the hood. QSC uses expensive super-high-quality drivers, and every pro knows about QSC amps. Don't forget that when you buy these, you are getting a QSC 1000-watt amp in the bargain. Anyone who tries to compare these to bargain-brands is deaf and ignorant. These are a superb value in every respect, especially if you install hard-working sound-systems for a living and YOUR reputation is on the line. We have NEVER had a call back or a failure with QSC products. QSC has improved OUR bottom line by making reliable great-sounding speakers to go with their bullet-proof amps. These are worth every penny and then some. If you have to carry your own gear, then they are priceless. Dr. Decibel has spoken.

(9 of 9 customers found this review helpful)

 
5.0

Extremely Powerful

By Bengie Oyola

from Puerto Rico

About Me Professional Musician

See all my reviews

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

(8 of 8 customers found this review helpful)

 
5.0

Very Nice!

By PaulGG

from Seminole, FL

See all my reviews

Comments about QSC K8 8" Powered PA Speaker:

I got 2 of these for my acoustic guitar duo act along with a yamaha mixer. Work very well for this application for bars inside and outside. Pleny of bass for what I do so I don't need the QSC sub at this time. I compared to JBL and Mackie and K8 is better in a several area. Less boxy and nasal sounding than those. Don't get me wrong I like JBL and Mackie. Behringer was not even close but they are not horrible. These QSC have a great amplifier section and that may be why they sound so good. Very transparent and balanced. I tried Fishman Solo amp and Bose PAS ( which are awesome for a soloist) as well and these QSC's are more flexible in that I got two speakers instead of one so it works better for different venues and musician combinations.

(7 of 7 customers found this review helpful)

 
5.0

Amazing Speaker!

By Simon Mandal

from New Jersey

Comments about QSC K8 8" Powered PA Speaker:

I have a hectic performing schedule, where I perform up at up to 12 venues in a week.I do everything from a 20 person kids party, to 1,500 seat theater shows.I wanted do have ONE speaker that would be appropriate to use in all the venues I work.

This speaker is light enough to use at a backyard BBQ,and POWERFUL enough to use in a huge theater.
It is LIGHT at 27 pounds.It is POWERFUL at 1,000 Watts.The sound that it produces is RICH, warm and FULL.
I use an omni directional headset mic,and I can turn this up REALLY REALLY loud without feedback problems.

I could not recommend this more highly.I was looking at speakers for 3 times as much, and I think this is a WAY better fit for my needs.
If you are a professional entertainer, and need a no nonsense speaker that sounds AMAZING, buy this unit. You will love it!

(5 of 5 customers found this review helpful)

 
5.0

the best option ever!!!

By fergon54321

from san francisco, ca

Comments about QSC K8 8" Powered PA Speaker:

when I got these one, never expected that much, but after being using it for a while, I can tell that this little one is the best purchase I ever made, I'm planing to expand my sound with a few more, after beat two pair of JBL's, 15x2, the qsc got the best shot of all, you wont be dissapionted.

(5 of 19 customers found this review helpful)

 
3.0

OK but overpriced

By Another consumer

from Southern US

Comments about QSC K8 8" Powered PA Speaker:

Heard these being used at a local open air venue for acoustic guitars and vocals. Great highs, good lows, no mids. They are very directional and almost have a zone of sound sent from the front. They sound muffled/thin if outside this zone. No, it wasn't the eq settings or the mixer; the mixer was expensive and the eq was set fine. These are small lightweight boxes with small speakers. The main selling point for these is the size and weight; NOT the sound (or price). They are surprisingly loud but the quality of sound is not balanced through the entire freq range of the speakers. Cheap crappy Behringers sound as good, are 1/4 the price, and are only slightly larger and heavier. If you are considering purchasing these, listen to them critically, compare with other speakers, and don't buy because of the name or supposed worth based on price. Just my humble opinion.

(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)

    (4 of 4 customers found this review helpful)

     
    5.0

    K-8 review

    By pianopaul

    from NJ

    Comments about QSC K8 8" Powered PA Speaker:

    I play mostly accoustic piano sounds from my electric piano,and sing. Piano sounds great, more bass response than you could hope for from a speaker this size, vocals are stellar,you just need to introduce some reverb via a mixer, or effects box,makes a great compact P.A., the only thing that would make this complete, would be some useable onboard reverb on one channel for vocals.At 27 pounds,my back loves it too.

    (4 of 5 customers found this review helpful)

     
    5.0

    Unbelievable

    By MO

    from Alabama

    See all my reviews

    Comments about QSC K8 8" Powered PA Speaker:

    I have been using Pro sound for 32 years. To get anywhere near the quality of these speakers, you will have to buy Meyer or Worx, which cost thousands more. These speakers are amazing! Please don't ever try and compare them to the low end cheap junk like entry level Mackie, Behringer, etc. The quality of these little speakers are amazing for the money. You will not find anything even close for the money. It is amazing how much they will handle. Most speakers will sound reasonable good playing a track thru them, but they generally lose it with live vocals, drums, and a kickin' Bass guitar. NOT THESE. What real bang for the buck. You will never regret buying these. WOW!!!

    Displaying reviews 1-10

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