1. Welcome to TalkBass 2014! If you're new here, we just went through a major site upgrade. Please post all concerns and bugs to the Forum Usage Issues forum. We will be monitoring that forum. Thank you for all of your feedback.

    The TB Android app is working, you may need to uninstall/reinstall. The iPhone app is now updated and should work after you upgrade. TalkBass is responsive to any screen size, so we recommend using your mobile browser for full functionality.

    Please read the TalkBass 2014 FAQ for lots of great info on the new software.

QSC K12 for bass...

Discussion in 'Amps [BG]' started by Bassflute, Sep 7, 2012.

  1. Bassflute

    Bassflute

    Joined:
    Jun 24, 2006
    Likes Received:
    0
    Disclosures:
    Endorsing Artist: MTD basses and strings
    Tried one in a store. Certainly blows away anything in the bass world for $800.00. Anybody tried one on a gig?

    Cheers,
    Cameron
  2. the yeti

    the yeti

    Joined:
    Nov 6, 2007
    Likes Received:
    0
    it seems like the cab would have some trouble w/the very low end. maybe not? i guess not (to you anyway)..
  3. Bassflute

    Bassflute

    Joined:
    Jun 24, 2006
    Likes Received:
    0
    Disclosures:
    Endorsing Artist: MTD basses and strings
    it's the bass amps that sound anaemic there - this thing blows them away, especially when you think of what you can get for $800.00.

    AND it's got midrange and treble as well!

    Cheers,
    Cameron
  4. DrumsAndBass

    DrumsAndBass

    Joined:
    Apr 7, 2011
    Likes Received:
    0
    I bet it would work very well provided that you set all the levels with care. I saw a guitar player blow one of these in one of our rehearsals. He was using it as his only guitar amp. I'm not sure why he blew it up. It's an excellent product no doubt. It must have been "pilot error."

    I've had better experience with this:
    I tested the QSC KSUB. I patched it in to extend the range of my regular bass rig at the time. So, my bass rig ran full range and then the KSUB did it's thing for the extended lows. It sounded great.
  5. seamonkey

    seamonkey

    Joined:
    Aug 6, 2004
    Likes Received:
    6
  6. DrumsAndBass

    DrumsAndBass

    Joined:
    Apr 7, 2011
    Likes Received:
    0
    Yeah, that link does not show the configuration that I used. I placed my powered sub on the stage right under my bass rig. I patched in the sub to a pre-eq out on the back of my rack preamp. It sounded awesome. I did have to set my overall levels very carefully though. Bandmates liked the added low end support. There were no FOH concerns either. But I wrote everything in the past tense because I don't use that powered sub any more. But you know, just beware of your levels on that K12 and you should be fine.
  7. derrico1

    derrico1 Supporting Member

    Joined:
    Apr 12, 2005
    Likes Received:
    0
    I've played a few small outdoor stages where I went from bass preamp straight into the board (no stage amp), and FOH was K12 and stage monitoring was side-fill K10s.

    The context was vocal-oriented acoustic rock, with fairly quiet stages. That said, the bass in the K12 and K10s sounded very good. (The pre-amp in one case was a Aguilar DB659, the other couple of times it was a Universal Audio solo/610, so that probably helped.)

    IDK at what SPL the K12 and K10s would start sounding taxed by bass, but at low to moderate volumes they are capable of sounding quite good.
  8. dmac1961

    dmac1961 Supporting Member

    Joined:
    Feb 7, 2012
    Likes Received:
    1
    K12's are very nice speakers, although I haven't tried one for bass. I did do a show and the tranny in my B15 went out and I had to finish the gig with my Avalon into a JBL Eon 15G2. It sounded fine to me, but the thing I really noticed is those composite cabinets really flex with nothing but low end going through them. The vibrations actually unscrewed the barrel from the 1/4" connector several times throughout the set! I would definitely try it in a typical gig situation before I committed myself.
  9. Primakurtz

    Primakurtz Registered Nihilist Supporting Member

    Joined:
    Nov 23, 2011
    Likes Received:
    1
    I am really curious as to how one QSC KW153 powered speaker would work for gigs. Has anyone tried it? 35hz on the bottom.
  10. SBsoundguy

    SBsoundguy

    Joined:
    Sep 2, 2011
    Likes Received:
    1
    Was the guitarist going directly in with a pedal? It possible it could fry the horn.
  11. 4Mal

    4Mal Supporting Member

    Joined:
    Jun 2, 2002
    Likes Received:
    2
    The K series tops are wildly popularas keyboard cabs. I play bass through my K10's with the k Sub or without when they are foh. Seems to work fine though I avoid playing in real loud situations - not due to the gear, due to my ears... I have heard screaming loud keys, a full on 88 through a K12 on a stick amd it sounded fine to me.
  12. will33

    will33

    Joined:
    May 22, 2006
    Likes Received:
    8
    Disclosures:
    Use of this field for any other purpose is prohibited
    Those self powered things have built in DSP to taylor the response and give a bit of "psycho acoustics" in the deep bass, but yes, they are quite nice speakers. If anybody can get it right, QSC can.
  13. Bob Lee (QSC)

    Bob Lee (QSC) In case you missed it, I work for QSC Audio! Gold Supporting Member

    Joined:
    Jul 3, 2001
    Likes Received:
    10
    Disclosures:
    Applications Engineer, QSC Audio
    Darryl Jones was just here yesterday. I think he might've picked up a K12 or two, but I'll find out for sure.
  14. KJung

    KJung Supporting Member

    Joined:
    Apr 9, 2005
    Likes Received:
    18
    Hey Cameron,

    If you were impressed with this design, check out Duke LeJeune's amazing Thunderchild cabs (TC112 and TC115). Massively powerful woofers (OEM 4ohm versions of the Eminence 3012LF or 3015LF), massive mechanical specs, real low end that you can POUND on a gig, and the most amazing crossover (the crossover itself in the TC115 weighs almost 6 pounds) that makes the big horn sound like the top of the best driver you've ever heard.

    500 watts pushes these cabs to pretty much full performance, but they will take more.

    The TC115 comes in a composite form that Mike Arnopol (amazing bassist and TBer and master carpenter from Chicago) builds, getting the weight of the TC115 Compact Composite to around 34 pounds.

    Amazing stuff, and you don't have to hunt around for a preamp or whatever. Any good bass amp of your choice will work.

    Just FYI.
  15. Bassflute

    Bassflute

    Joined:
    Jun 24, 2006
    Likes Received:
    0
    Disclosures:
    Endorsing Artist: MTD basses and strings
    ...and was intrigued. I'm not really looking for another system, my Berg IP rig still sounds great (esp with the Sonic Farm Je-DI Tube DI), but am looking for a bass-in-one-hand, amp in the other solution that sounds good. This QSC does sound freaking great - have you tried one yet?

    Cheers,
    Cameron
  16. KJung

    KJung Supporting Member

    Joined:
    Apr 9, 2005
    Likes Received:
    18
    Yeah, you are in good shape with the IP rig! The primary difference with the Thunderchild is that the horn is crossoved over quite a bit lower (due to the almost subwoofer type driver), which results in a much more even transition from the top of the driver to the horn (i.e., none of the upper mid dip that occurs in almost all 'woofer/tweeter' designs (although that upper mid dip can sound quite nice, as it does in the HT112ER).

    I've never been very impressed with 'PA cabs' for bass. The horns are typically not voiced correctly and the drivers are typically not designed to handle the transients of a non-compressed/live bass guitar signal.

    That is one of the cool things about Duke's cabs... he went into this not only thinking about 'a studio monitor type cab' for live bass performance, but he actually used components that are appropriate for those big, non-programmed transients, etc. Really works nice.

    I will surely try one of these for the heck of it if I run across one in a store though.

    K
  17. seamonkey

    seamonkey

    Joined:
    Aug 6, 2004
    Likes Received:
    6
    I'm sure Duke has fine cabinets.

    In defense of the QSC K's
    They don't have "voicing"
    They're not meant to color your sound. Just amplify.

    No need for a 6lb passive crossover because they bi-amp, add another amp, and a little circuitry (DSP) for a crossover is just a few ounces.

    It would be interesting to see a side-by-side, or double blind test with some bass amps/cabs.
  18. fokof

    fokof Gold Supporting Member

    Joined:
    Mar 16, 2007
    Likes Received:
    0
    I'm a huge fan of active boxes as bass monitors.

    I use a 10" for smaller gigs and add a sub when I need more juice. There are so many choices in that category , not all created equal but still.
    In price/weight/performance , small bass amp manufacturer can't compete with the knowledge and industrial infrastructures of JBL , RCF, QSC etc....

    Have a look at RCF stuff.
  19. steve_rolfeca

    steve_rolfeca Supporting Member

    Joined:
    Nov 21, 2006
    Likes Received:
    12
    Ummm.....

    Actually, they do.

    I work with QSC HPR's and K's every weekend. Love 'em. Great speakers for the size, weight and price. They sound better than most competitive PA speakers, and pretty darn good with bass.

    But they are definitely coloured.

    You have to be talking from a purely theoretical standpoint. Because if you had used them in the field or A/B'd them against some reference speakers, you'd know that they are far from flat.

    Better than a lot of midrange PA gear, to be sure. But miles away from a good Hi-Fi speaker.

    Also, I have one of Duke's bass cabs, the little 12" one. Back to back with a K12, and driven full-range by a kilowatt class power amp, it tears the K12 a new one:
    - more volume before breakup, especially down low
    - less compression on peaks at high volume
    - less harsh and coloured when listening to recorded music
    - lighter, including the weight of a separate power amp and preamp

    Of course, Duke's cab is more expensive when you factor in the cost of separate amplification. But you definitely get what you pay for.
  20. KJung

    KJung Supporting Member

    Joined:
    Apr 9, 2005
    Likes Received:
    18
    EVERY cab has a voicing.

Share This Page