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QSC KW181 Powered Sub Woofer 18" 1000W

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Building on the success of QSC's K Series, the KW181 subwoofer, like the rest of QSC's KW active loudspeakers, represents QSC's next evolutionary ste...Click To Read More About This Product

Available 10-04-2017

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OVERVIEW

An 18" sub with 1000 Class D continuous output, and extended bass in a lighter birch enclosure.

Building on the success of QSC's K Series, the KW181 subwoofer, like the rest of QSC's KW active loudspeakers, represents QSC's next evolutionary step in wood enclosure loudspeakers. The system engineers created the KW series to feature all the groundbreaking electronic attributes of the popular K Series while at the same time designing a product that is both smaller and significantly lighter than previous wood enclosure models.

High Output
Like it K series predecessors, the QSC KW181 speaker features a QSC designed, 1000W (2 x 500) Class D power module. The loudspeaker is also fitted with an 18" cone transducer of the same high-quality design.

DSP
Extensive signal processing is employed throughout the QSC loudspeaker, providing levels of sonic clarity and total output that defy all expectations for a speaker in this category:
¢Intrinsic Correction: first featured in QSC's high-end line array products, it maps 65-75 spatially-averaged measurements to IIR and FIR filters that actively adjust time, frequency, and amplitude response to a maximally flat bandpass target. The result is an active speaker that behaves equally well across the entire sound field
¢DEEP and excursion limiting allow for extended low-frequency response by actively managing low-frequency transients without degradation of the underlying signal or adjacent frequencies
¢GuardRail protection, first introduced on QSC's GX Series amplifiers protects both the amplifier module and your performance from unnatural and destructive clipping

Connectivity:
The QSC KW181 subwoofer speaker features dual balanced female XLR / 1/4" line level‰input, dual balanced male XLR full-range line leave out, remote gain control via a potentiometer (sold separately), and a locking IEC power connector.

Control:
The QSC KW181 speaker has an LF switch which can be set to NORM, DEEP for additional bass extension. The rear panel LED switch can be set to POWER, illuminating the front-mounted LED when the QSC speaker is powered on, OFF for applications where it is not desirable to illuminate the front LED, or LIMIT which indicates to the system operator that the clip limiter circuit has been engaged during operation.

Premium-grade materials:
The QSC KW181 subwoofer, like all its KW Series brethren, is designed to withstand the rigors of professional use. Advanced construction processes, premium-grade Baltic birch cabinetry, ergonomic, cast aluminum handles, low-noise casters, and a highly protective steel grille provide for ease of transport and long-term durability. The QSC loudspeaker's integrated M10 suspension points allow for flown applications and a threaded pole receptacle provides for a positive, wobble-free connection to a threaded speaker pole (included).

FEATURES
Speaker configuration		
Active/passive: Active
Type: Subwoofer
LF driver: 18"
MF driver: N/A
HF driver: N/A
Power
Amplifier class: D
Wattage: 1000W continuous
Mixer/preamp: No
Audio
Frequency response: 39Hz - 145Hz
Coverage pattern: N/A
Max SPL: 132 dB
Inputs
XLR: 2 XLR/TRS
TRS:
TS:
RCA:
Output/thru
XLR: 2
TRS:
TS:
RCA: 
SPEAKON:
Enclosure
Cabinet material: 15 mm painted birch ply
Width: 23.4"
Height: 20.1"
Depth: 29.9"
Weight: 88 lb.

Portable, profession low end extension. Order today and improve your PA exponentially.

SPECIFICATIONS
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Reviews
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Review Snapshot

by PowerReviews
QSCKW181 Powered Sub Woofer 18" 1000W
 
4.7

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Durable (3)
  • Good audio (3)

Cons

No Cons

Best Uses

No Best Uses

Reviewed by 7 customers

Displaying reviews 1-7

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(10 of 12 customers found this review helpful)

 
5.0

Deep, Punchy Lows

By JohnWylde159

from Philadelphia, PA

Comments about QSC KW181 Powered Sub Woofer 18" 1000W:

Ive recently upgraded to this sub after having the ksub. Instantly this sub blow me away (literally). Its a little bit heavy but all great speakers have some weight to them and with preinstalled casters it makes transporting these an ease. This sub runs could all night for hours and hours no matter how hard u push it, and it takes alot to peak this thing. The only thing that I dislike about this is that the DEEP feature doesnt do that much but you will not need it trust me these things kick. I run 2 of these with the kw12s as tops to complete my setup and plan to pick up 2 more. Do yourself a favor and pick up one of these and make the earth rattle

(10 of 13 customers found this review helpful)

 
5.0

QSC KW181

By Jeff Turk

from Michigan

Comments about QSC KW181 Powered Sub Woofer 18" 1000W:

Quite possibly this is the sexiest piece in my arsenal (I'm a mobile DJ). I've only had the chance to test it out in a HUGE gymnasium - it was great, but not chest thumping. I can't wait to test it out in a more standard (for me) sized room. I'm primarily a wedding DJ, so I imagine most halls will be sufficiently rocked by this sub. But if you're doing school dances or are in much larger venues, I would recommend more than one.
A little expensive for what it puts out.

(5 of 5 customers found this review helpful)

 
5.0

Great for live performances.

By Dean C.

from Kingman, Arizona

About Me Experienced

Pros

  • Clear Sound
  • Durable
  • Easy To Use

Cons

  • none

Best Uses

  • Performances

Comments about QSC KW181 Powered Sub Woofer 18" 1000W:

We use 4 of these KW181's in our portable church. We meet in a 500 seat auditorium and have a band with electric guitars, bass, electric kit, and synth. These KW181's deliver absolutely shirt-moving low end. Our band is drum and bass guitar driven, and we love these things. Of course, we have slightly EQ'd them to really get what we want out of the kick drum and bass guitar and have added HPF on most of the other instruments/vocals to clean up our mix. But expect to be punched in the chest. Lot's of power.

(5 of 5 customers found this review helpful)

 
5.0

Very Nice Piece of Equipment

By Rasta Linus

from Atlanta, TX

About Me Experienced

See all my reviews

Ask me a question

Verified Buyer

Pros

  • Compact
  • Durable
  • Easy To Use

Cons

    Best Uses

    • Mobile DJ

    Comments about QSC KW181 Powered Sub Woofer 18" 1000W:

    I bought one of these to improve my low end for my mobile DJ business Glad You Came Mobile DJ Entertainment near Texarkana, Texas. I was very impressed instantly with the speaker. It's not very big compared to subs I've used in the past. You've got to get the case that goes along with the 181; it should be mandatory. I'm strongly considering buying another one these to couple them together. In fact, I know I will soon.

    (2 of 2 customers found this review helpful)

     
    3.0

    The Jury's Still Out...

    By Enelcee

    from KS

    See all my reviews

    Verified Buyer

    Comments about QSC KW181 Powered Sub Woofer 18" 1000W:

    I upgraded from a Matrix 2000 to an all QSC set up and really love the tops, but this sub just does not seem to have the same bottom as my old one. I don't understand why, because they are both 18's and the QSC has more power? It must have something to do with the crossover or the frequency response. Any way, it's a great looking sub and it is much lighter than my old one. Eventually, I am going to buy another one to see if that will bring back the rumble that I remember with my ol' B-52.

    (1 of 1 customers found this review helpful)

     
    5.0

    LOVE THESE SPEAKERS .

    By RONNIE Q

    from CROFTON MD

    About Me Professional Musician

    Pros

    • Clear Sound
    • Durable
    • Lightweight

    Cons

      Best Uses

      • Events

      Comments about QSC KW181 Powered Sub Woofer 18" 1000W:

      THEY'RE UNREAL THE POWER THAT COMES FROM THEM . MY COMANY OWN 12 OF THEM. WE ONLY USE QSC EQUIPMENT AND LOVE IT...

       
      5.0

      Update to "The Jury's Still Out"...

      By Norm

      from MO

      About Me Novice

      Pros

      • Clear Sound
      • Compact
      • Lightweight

      Cons

      • Pricey / Poor Value

      Best Uses

      • Events
      • Home Studio
      • Mobile DJ

      Comments about QSC KW181 Powered Sub Woofer 18" 1000W:

      I was finally able to purchase a second KW181 and all I can say is "WOW"! When you couple two of these monsters, the bass is more than adequate. This is no exaggeration; I was playing spooky music and sound effects in my house on Halloween night, I had two of these coupled downstairs in my basement with the gain levels set @ 1/4. My wife and I were sitting on the front porch passing out candy and we could feel the whole house vibrating, at some point in the evening, a brass sculpture vibrated off a shelf upstairs and broke a glass insert in a table below. I have yet to turn the two of these up past 1/4 as the bass is overwhelming!! I will admit that it was expensive to get to this point, but I now feel confident that I can handle large events with ease.

      Displaying reviews 1-7

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