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QSC KSub Powered Subwoofer  

Item #: 
1274034490410
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The QSC KSub Powered Subwoofer is the ideal supplement to QSC K Series 2-way speakers for live reinforcement of bass instruments and drums, or higher-level playback of recorded music. Its 1000W Class-... Click To Read More About This Product

Price:
$1,07999.00
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Overview
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The QSC KSub Powered Subwoofer is the ideal supplement to QSC K Series 2-way speakers for live reinforcement of bass instruments and drums, or higher-level playback of recorded music. Its 1000W Class-D power module never fails to deliver. The KSub subwoofer's M20 threaded pole socket (pole included) provides a secure, wobble-free method of elevating a mid-high speaker over the subwoofer. The KSub subwoofer's compact footprint won't take over the stage, dance floor, or seating area of smaller venues. A pair of high-power 12" speakers in an optimized band-pass enclosure will handle everything the 1,000-watt power module can give them. Compact in size, the QSC KSub has ergonomically designed handles and 3" noise-free casters ease load-in and load-out.

Features Speaker configuration
  • Active/passive:Active
  • Type:Subwoofer
  • LF driver:Dual 12" bandpass
  • MF driver:N/A
  • HF driver:N/A
  • Power
  • Amplifier class:D
  • Wattage:1000W continuous
  • Mixer/preamp:No
  • Audio
  • Frequency response:44Hz - 148Hz
  • Coverage pattern:N/A
  • Max SPL:130 dB
  • Inputs
  • XLR:2 XLR/TRS
  • TRS:
  • TS:
  • RCA:2
  • Output/thru
  • XLR:2 XLR/TRS
  • TRS:
  • TS:
  • RCA:2
  • SPEAKON:
  • Enclosure
  • Cabinet material:ABS
  • Width:14"
  • Height:26"
  • Depth:28"
Specifications
  • 1,000W Class D power module
    Professional appearance and rugged construction
    GuardRail technology discreetly protects the system from damaging overload
    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
    Front mounted LED may be switched off or indicate "LIMIT" or AC Power On
    High-Pass Filter
    Dual 12" band-pass for compact size, efficiency and high-power handling
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
QSCKSub Powered Subwoofer
 
4.5

(based on 31 reviews)

Ratings Distribution

  • 5 Stars

     

    (22)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Most Liked Positive Review

 

AMAZING POWER!

1000 Watts is really loud. The bass from the KSUB sounds smooth and clear, with deep solid chest thumping hits. The dual 12" speakers inside really are amazing in how QSC...Read complete review

1000 Watts is really loud. The bass from the KSUB sounds smooth and clear, with deep solid chest thumping hits. The dual 12" speakers inside really are amazing in how QSC managed to produce the powerful bass this sub gives. I bought this KSUB new from my local GC and in the pictures the casters are silver, but the cab i bought had BLK casters and they didn't rattle either when i tested the sub. I went straight home and set it up and was amazed. 18 inch subs produce a low frequency of 30 Hz, and this sub produces as low as 44 Hz. But 12's are punchier than 18's. The payoff for me in this sub is the full sounding bass of the KSUB and that it's light enough for me to lift and load alone. If you get an 18 in favor of a deeper 30 Hz bass, you'll definitely sacrifice the lightness and need a second person to help you lift it. PROS: It's very light (72 lbs.), it's compact, it sounds great, looks very professional, quality craftsmanship. I'm 100% satisfied. CONS: seriously no downside to this sub.

VS

Most Liked Negative Review

 

Grear for DJ's. Not for Bands.

I bought one of these subs along with two k12's from my local guitar center. My overal first impressions of this sub was that it sounded good but didn't really have the output...Read complete review

I bought one of these subs along with two k12's from my local guitar center. My overal first impressions of this sub was that it sounded good but didn't really have the output or the bottom end that I was expecting. So I bought another. 2 ksubs with the k12's mounted on top sounded great. I have used these for both DJ gigs and running sound for my Dad's band. After having these for about 6 months I finally decided that I wanted more and sold both of them and bought a KW181. Big difference. I can't wait to get another. The ksub's just simply don't have that impact that I was looking for. If your looking for chest thumping bass and you like QSC buy a KW181.

Reviewed by 31 customers

Displaying reviews 1-10

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5.0

QSC Bass Rig!

By QSC Bass Rig User

from Boston, MA

About Me Professional Musician

Verified Buyer

Comments about QSC KSub Powered Subwoofer:

I purchased a level 3 "scratch 'n dent" KSub as the price was too good to pass up. It arrived in a sturdy non-factory box that held up well against the UPS distribution system and included the USA spec locking IEC power cable and threaded speaker pole (no manual or 240v power cable, not that I need either as QSC has PDFs available).

As clearly disclosed in the photos, it has a few dents and paint chips, which I repaired with cyanoacrylic glue to harden the damaged wood and a black paint pen to touch up the missing paint. None of the damage compromises the structural integrity of the cabinet, and I also purchased the matching cover to prevent more from happening.

While 74lbs. sounds like it would be heavy to move on your own (especially since I live upstairs in an apartment complex with no elevator), it is very manageable thanks to the 3" caster wheels and ergonomic aluminum handles. The ability to use it as a dolly for other gear also is a bonus with the Velrco strap on top of the cover (purchased separately). It's also small enough to store in a modestly sized closet when it's not in use, preventing the cover from becoming my cat's new favorite scratching post.

That said, I primarily use the KSub in an atypical application: as a bass amp in conjunction with a QSC KW122 and an Aguilar Tone Hammer DI. It sounds excellent as part of a bass amp rig, and playing through a 2000 watt bi-amped setup always brings a grin to my face. Given that my "half a PA system turned into a bass amp" setup is meant to amplify a whole band, it's very loud, clear, and articulate as a monitor/amp. I chose this setup as I am also a guitarist and I use the KW122 with both acoustic and electric guitars, using a Fishman Platinum Pro DI for acoustic and a Tech 21 Blonde as my electric preamp. The KW122 works great on it's own for bass, but adding the KSub feels like going from a 1x12" combo amp to an 8x10" SVT rig. On top of that, it also can be used as... a PA system! Very convenient.

  • Was this a gift?:
  • No
 
4.0

I would purchase again

By andre

from undisclosed

Verified Buyer

Comments about QSC KSub Powered Subwoofer:

good product for scratch and dent sale -- some can't afford new - its like a car -- a scratch here, a dent there - great deal for the price --

 
5.0

The Elite!

By Odd Apple Entertainment

from Riceville, TN

About Me Pro Audio / DJ

Pros

  • Attractive Design
  • Big Bass Sound
  • Easy To Set Up
  • Good Power Output
  • Great Sound Quality

Cons

    Best Uses

    • Basic Systems
    • DJ / Mixing
    • Home
    • Larger Rooms
    • Multiple Rooms / Whole House
    • Outdoors
    • Smaller Rooms

    Comments about QSC KSub Powered Subwoofer:

    I never thought this Ksub would make my 2 k12's sound that much better. I want to buy another one.

    • Was this a gift?:
    • No

    (1 of 3 customers found this review helpful)

     
    2.0

    No chest thumbing sound from ksubs

    By SHANTANU

    from Franklin,TN

    Comments about QSC KSub Powered Subwoofer:

    I have purchased two K12 and two ksubs in order to get chest thumping experience what some reviewer wrote here. All those speakers are connected to a brand new Allen & Heath Zed 12fx mixer. Now, I tried to play music with lots of drums in it from my iPad which is connected to mixer line with a 1/8 inch cord. I am not experiencing any special sound boom or nice bass out of KSUB. Those are just two big rocks for me. I called QSC but their tech support was useless and half of the time I had to repeat what I am saying. He definitely doesn't speak or understand English well. totally frustrated at this point. I am seriously considering to return these expensive KSUB rocks. Customer service lady Krista at Guitar Center, Cool Spring,TN was excellent.

    (1 of 1 customers found this review helpful)

     
    5.0

    Awesome product

    By Tim Simmons

    from Woodland, CA

    Comments about QSC KSub Powered Subwoofer:

    I started out with just QSC K12's then purchased two QSC KW181's and while I love the thump, I wanted to go smaller and add to my list of QSC Speakers. So I purchased two QSC K8's and the KSub. My first gig was last Friday night and I was amazed at how well the sound filled the room. I do use a DBX DriveRack PX Powered Speaker Optimizer and I love it, simple one man operation that allows me to setup quickly and for A local hall that I work several times a year and it all fits in the Prius! I will get one more, just because I like the look of mounting the mains on top, but what an awesome sounding sub!

    (2 of 3 customers found this review helpful)

     
    5.0

    K Sub Rocks

    By mrfiberman

    from San Diego CA

    About Me Movie Enthusiast

    Verified Buyer

    Pros

    • Great Sound Quality

    Cons

      Best Uses

      • Basic Systems
      • DJ / Mixing

      Comments about QSC KSub Powered Subwoofer:

      Great Sub for the size & price.

       
      5.0

      awesome!

      By micaiah masterson

      from Boston, MA.

      Comments about QSC KSub Powered Subwoofer:

      very compact and powerful! easy to use and it has very effective wheels so you are not carrying it!!! I recommend getting the cover/case to go with it!

       
      3.0

      Beware. Not made for kick drum and bass guitar.

      By curt beasley

      from central Florida

      Comments about QSC KSub Powered Subwoofer:

      I had a Harbinger powered sub that sounded killer for my band's live sound. I sold it and bought a Ksub because it weighed so much less. Worst mistake of my life. This speaker does not do live sound. When I play my ipod on breaks it sounds great but it simple does not reproduce live sound the way a front firing 18" speaker does. If I was a DJ, this would be the only sub I ever owned. I can easily load and unload it by myself and its plenty loud.

      (7 of 7 customers found this review helpful)

       
      5.0

      Ksub is a winner

      By Shawn Beckner

      from Charleston, SC

      Comments about QSC KSub Powered Subwoofer:

      To those of you dissuaded by a couple of the negative reviews...please ignore them. I have a pair of K12's on top of two Ksubs...will soon be getting two K10's to use as floor wedges. We are a four piece wedding/corporate event band....and this set-up helped get us bigger money, many more referrals and better gigs in general. In fact, since purchasing all of this QSC gear we've also landed a booking agent and have already paid everything off plus some...only a couple months later. I'm not joking...I was surprised at the difference it made all around. It's an investment you only have to make once (6 year warranty!) Seriously professional quality sound...like a hi-fi home audio system only ON STAGE!!! I would rather bring my system to almost any venue than use the house system. The bass thumps (I'm also the bassist) and the kick drum kicks. When we play bumper music before or between sets it's funky and clear. Truthfully, it's a very balanced little system...and tear down and transportation is a snap. We get compliments about our sound, and it's just so clear that even at higher volume nobody is running for the doors...hard to explain, but it's a pleasant effect...the sound from this rig is just so clear. If you are a DJ playing blast beats down in the -35hz range, then maybe you should look into carrying around 4 18inch subs and a couple tops...but that's not our gig. We're a funky dance band and this system seems to have been specifically designed for our use.

      (2 of 4 customers found this review helpful)

       
      5.0

      One word BEST

      By Randy Cowles

      from Cali

      Comments about QSC KSub Powered Subwoofer:

      I own 2 and match them with 2 K12-s run them through a BBE 882i sonic maximizer ...the sound is un believable . you wont be disappointed !
      great low end with a endless amount of configuration settings
      Build quility um matched strong , and having heavy duty castors makes these extramely robust
      great for the money not cheep but great value when you buy the best you have to expect to pay a bit more

      Displaying reviews 1-10

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