Behringer Ultratone KXD12 600W 4-channel Mixing Keyboard Amp


86 out of 100. Incorporating 200+ ratings and reviews.

Street Price: 

Behringer Ultratone KXD12 600W 4-channel Mixing Keyboard Amp

This 4 channel amp has an XLR input that works well with microphones that don't require phantom power and many musicians report using it successfully as a small PA system to sing and play through at the same time. This includes both keyboardists and singer/acoustic guitarists and it comes with Behringer's FBQ feedback detecting system to help with that application.

The KXD12 is also used by electronic drummers and even bass players because the 12" woofer handles low frequency transients quite well while still retaining the sparkle at the high-end due to being bi-amped and having a 1" tweeter.

Key Features:

  • Output Power: 600 Watts.
  • Number of Channels: 4.
  • Inputs: 1 x XLR, 8 x 1/4", a Stereo RCA input and a 1/4" for a Footswitch.
  • Outputs: 2 x 1/4", 2 x XLR, 1 x 1/4" Stereo Link, 1 x 1/4" Subwoofer and 1 x 1/4" Headphones.
  • Speakers: 12" woofer and 1" Tweeter.
  • Tone Control: 7 band graphic EQ.
  • Frequency Response: Not specified.
  • Size: 18.4" x 11.8" x 16.5".
  • Weight: 40.3 lbs.
  • Manufacturer Warranty: 3 years.


The KXD12 has been well received by keyboard players, electronic drummers and duos and trios that use it as a small PA. There are even some acoustic guitarists who prefer the sound of this amp over their dedicated acoustic amp. Those who used two of these with the Stereo Link were generally quite impressed with the results.


One drawback is that the 7-band EQ is applied to all channels rather than giving you the option to select which channels to apply it to, but this is common with keyboard amps. There are a few people who have complained that the power rating is not RMS saying that it sounds about as loud as a Roland amp rated at under 200 watts.


In addition to being a highly rated keyboard amp, the KXD12 has found a place as a small PA and as an amp for electronic drums.

If you'd like to see our current recommended list then take a look at our guide to The Best Keyboard Amps.

Here's Behringer's overview of the amp:


Being a multi-instrumentalist

Being a multi-instrumentalist (bass, guitar, drums/perc. keys & vocals), I do appreciate combo amps that are flexible & can do many roles with a high degree of performance. Also, my basses & guitars have been mod stereo & even as inconvenient as it is; I either needed a multi-channel amp or two identical amps. My to go amps are the Roland Bass Cubes & own pairs of the Cube 40 & 60. Many, including a Pro A/V company I used to work for; "fu-fu" Behringer. Of the dozen or more Behringers I own, the LCD screen of a DEQ-2496 is the only one I have not been able to fix, yet. An MX-1804FX (amazing sounding pre's) mixer got a high alcohol content Malbec wine got spilled right on the faders & I got an identical cheap used one. The old one is a parts source. Even as Behringer uses toroidal transformers for most of their power supplies, they do have issues with power regulation. Ever since I decided to use Tripp-Lite power conditioner/regulators (LS606M & up. See, I have avoided equipment failures both at home/studio & at gigs (clubs are famous for horrible electrical installations, that will mess up your gear). But going back to the KDX12. As with the Roland Bass Cubes, I have used the KXD12 for everything from instruments to mains & as monitors too. My favorite speaker brands are Eminence & E/V. E/V are particular about selling you their raw speakers & so does Turbosound. So the alternative is Eminence. But those Turbo sound... wow !. On the KXD12 they just kick butt. For quite awhile I'm a 5 string bass player & the D note on the B string can be too muddy on most cabs/amps. Not on the KDX12 & the clear definition rivals my bass big rig. A Soundcraft Gig Rac 1000st, powering a Bag end 2x10" & an E/V 18" sub (both at 4 ohms). So yes. Behringer can have "ify" reliability, have hard to find "sweet spots". Almost impossible to fix, etc. But one thing I like is how good they sound. Enough said, ciao for now y'all. Oh, post data scriptum. If you can find a used Gic Rac 1000st in good shape, let me know. I want a 5th one & I might sell you one that I have reconditioned (for being a MosFet amp, it has a nice "warm" sound. See