Pricing and availability

We compare 600+ stores and found this item at 8 stores. Prices updated .

Sweetwater
4.5 (38)
$329.00
Guitar Center
3.5 (14)
$329.00
Amazon
4.0 (149)
$329.00
Reverb
4.0 (3)
$329.00 New
$199.00 Used
Musician's Friend
4.0 (27)
$329.00
B&H
5.0 (1)
$329.00
Thomann
4.3 (48)
$222.00
Gear4Music
£194.00

Average Price: $299

Standard/Professional

$249

$600+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 5 merchants for "Behringer ULTRATONE K900FX Keyboard Amp/PA System". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

If you're a musician on the go, the Behringer ULTRATONE K900FX Keyboard Amp/PA System is your all-in-one solution. Harnessing 90 watts of power through its 12" Bugera speaker, this 3-channel amp is ready to amplify your sound with clarity and precision. Whether you're playing in a small venue or need a compact PA system, the K900FX is designed for versatility and performance. Its 1" tweeter ensures crisp highs, while the onboard 24-bit digital FX processor offers 100 presets, including reverb, chorus, and delay, to enhance your sound.

The K900FX isn't just about power; it's about control. With a 5-band graphic EQ, you can sculpt your audio to suit any environment. The FBQ Feedback Detection System gives you the peace of mind to perform without worrying about unwanted noise. Each channel has its own volume and FX send controls, and Channel 1 comes equipped with an XLR input for dynamic microphones, making it perfect for vocals too.

Connectivity is key, and this amp delivers with multiple input options, including a subwoofer output for those deep, rich lows. The aux input allows you to connect external audio sources, and a headphone jack enables silent practice sessions. Whether you're a keyboardist, guitarist, or vocalist, the Behringer ULTRATONE K900FX is engineered to meet the demands of today's musicians.

Key Features:

  • 90-watt, 3-channel keyboard amp/PA system
  • 12" Bugera woofer and 1" custom tweeter
  • 24-bit digital FX processor with 100 presets
  • FBQ Feedback Detection System
  • 5-band graphic EQ
  • XLR mic input and multiple line inputs
  • Subwoofer output and aux input
  • Headphone out for silent practice
  • Integrated 35mm pole socket for stand mounting

Product specs

Speaker Size 1 x 12", 1 x 1"
Total Power 90W
Inputs 3 x 1/4", 1 x XLR, 1 x RCA (Stereo)
Outputs 2 x 1/4"
Height 17.375"
Width 16.875"
Depth 11.75"
Weight 41.45 lbs.

FAQs

What instruments can be connected to the Behringer ULTRATONE K900FX?

The Behringer ULTRATONE K900FX can accommodate a variety of instruments with its inputs, including keyboards, microphones, and other line-level devices via its 3 x 1/4" inputs, 1 x XLR input, and 1 x RCA stereo input.

Does the Behringer ULTRATONE K900FX have built-in effects?

Yes, the Behringer ULTRATONE K900FX features built-in digital effects, including reverb, delay, and chorus, allowing you to enhance your sound directly from the amp.

Is the Behringer ULTRATONE K900FX suitable for live performances?

With its 90W power output and versatile input options, the Behringer ULTRATONE K900FX is suitable for small to medium-sized live performances, providing ample volume and clarity for most venues.

Can the Behringer ULTRATONE K900FX be used as a PA system?

Yes, the Behringer ULTRATONE K900FX can function as a PA system, thanks to its multiple inputs and outputs, making it ideal for small gigs, rehearsals, and public speaking events.

How portable is the Behringer ULTRATONE K900FX?

Weighing 41.45 lbs and featuring a compact design with dimensions of 17.375" x 16.875" x 11.75", the Behringer ULTRATONE K900FX is relatively portable and can be easily transported to gigs or practice sessions.

TheTechMag

TheTechMag

BEST KEYBOARD AMPS!

Video thumbnail for BEST KEYBOARD AMPS! by TheTechMag

BEST KEYBOARD AMPS!

TheTechMag

TheTechMag

Video thumbnail for Behringer K900FX with an acoustic guitar by Proficiency Music

Behringer K900FX with an acoustic guitar

Proficiency Music

Proficiency Music

Video thumbnail for Unboxing my Behringer K900FX (A great sounding Speaker with Amplifier) by Rafael Jr. Navera

Unboxing my Behringer K900FX (A great sounding Speaker with Amplifier)

Rafael Jr. Navera

Rafael Jr. Navera

Video thumbnail for Behringer Ultratone K900FX - DJkit.com by djkit®

Behringer Ultratone K900FX - DJkit.com

djkit®

djkit®

Reviews

PROS

  • Powerful and clear sound delivery, ideal for outdoor and large venues

  • Versatile for multiple instruments, including guitars and MIDI keyboards

  • Clear and crisp sound rendition for electronic drums and cymbals

  • Enhances keyboard bass sounds, making them more like a real piano

  • Compact, portable, and sturdy with ample output for small combos or as a stage monitor

  • Built-in effects, especially reverb, are useful for live performance enhancements

  • Additional microphone input for easy connection and spontaneous performances

  • Line-Out feature for separate recording of performances

  • Affordable, offering high value for its price range

CONS

  • Too powerful for small studio environments, can be overly loud at close range

  • Internal FX less versatile compared to traditional guitar amps

  • DSP-processor's settings are too similar, lacking variety

  • Occasional strange noises (clicks/knacks), potentially due to ventilation issues

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Behringer ULTRATONE K900FX Keyboard Amp/PA System.

Comparisons

  • Owners suggest using small active PA speakers with a mixer over keyboard amps for better sound quality and flexibility, citing Mackie SRM350s as an option.

    Source
  • Users recommend JBL 308P MK-II monitors as a cost-effective alternative to more expensive Yamaha HS-8s, offering reasonable bass without a subwoofer.

    Source
  • Some owners recommend using bass amps for general keyboard use at higher volumes, but note that keyboard amps generally perform better due to their design.

    Source
  • QSC K12 powered speakers offer more power (1000 watts bi-amped) and lighter weight (41 lbs) compared to Roland KC550's 180 watts and 62 lbs, despite fewer inputs and EQ options.

    Source

Use cases and applications

  • For home use, active studio monitors like Adam Audio A8H are favored for their sound quality over keyboard amps, with flexibility added by using a mixer.

    Source
  • Built-in stereo mixers in amps like the Roland KC series provide convenience for plugging in multiple instruments and achieving a loud output.

    Source

User experience

  • Some owners report dissatisfaction with M-Audio products due to reliability issues, specifically mentioning failed capacitors in M-Audio BX5 monitors.

    Source
  • Owners report that guitars sound overly bright and bass-heavy through the K900FX, as it doesn't suppress certain frequencies that guitar amps typically do.

    Source

Features and functionality

  • The KRK Rokit monitors are praised for being crisp and punchy, offering a solid and engaging listening experience for synth enthusiasts.

    Source
  • Behringer ULTRATONE K900FX is described as sounding similar to a small PA system, providing good volume with minimal coloration for a true representation of input signals.

    Source

Value and pricing

  • Behringer keyboard amps, including the K900FX, are noted for being affordable options, with Roland offering more expensive but reliable alternatives.

    Source

5.0 out of 5

Based on 0 Reviews and 3 Ratings

5 star
4 star
3 star
2 star
1 star

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

More Behringer Keyboard Amplifiers

Accessories & Related Items

Artist usage

Community setups

Similar

Gear Guides

  • Added to Equipboard on by

    gchiaren
    gchiaren

    Gear IQ 37552