Pricing and availability
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Average Price: $299
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$249
$600+
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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.
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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
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What instruments can be connected to the Behringer ULTRATONE K900FX?
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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.
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Does the Behringer ULTRATONE K900FX have built-in effects?
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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.
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Is the Behringer ULTRATONE K900FX suitable for live performances?
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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.
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Can the Behringer ULTRATONE K900FX be used as a PA system?
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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.
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How portable is the Behringer ULTRATONE K900FX?
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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.
Videos
TheTechMag
BEST KEYBOARD AMPS!
Reviews
PROS
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Powerful and clear sound delivery, ideal for outdoor and large venues
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Versatile for multiple instruments, including guitars and MIDI keyboards
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Clear and crisp sound rendition for electronic drums and cymbals
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Enhances keyboard bass sounds, making them more like a real piano
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Compact, portable, and sturdy with ample output for small combos or as a stage monitor
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Built-in effects, especially reverb, are useful for live performance enhancements
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Additional microphone input for easy connection and spontaneous performances
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Line-Out feature for separate recording of performances
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Affordable, offering high value for its price range
CONS
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Too powerful for small studio environments, can be overly loud at close range
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Internal FX less versatile compared to traditional guitar amps
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DSP-processor's settings are too similar, lacking variety
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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
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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.
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Users recommend JBL 308P MK-II monitors as a cost-effective alternative to more expensive Yamaha HS-8s, offering reasonable bass without a subwoofer.
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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.
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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.
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Use cases and applications
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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.
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Built-in stereo mixers in amps like the Roland KC series provide convenience for plugging in multiple instruments and achieving a loud output.
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User experience
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Some owners report dissatisfaction with M-Audio products due to reliability issues, specifically mentioning failed capacitors in M-Audio BX5 monitors.
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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.
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Features and functionality
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The KRK Rokit monitors are praised for being crisp and punchy, offering a solid and engaging listening experience for synth enthusiasts.
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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.
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5.0 out of 5
Based on 0 Reviews and 3 Ratings
Genre Usage
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