Ultra-Flexible 90W 3-Channel PA System/Keyboard Amplifier with FX and FBQ Feedback Detection
ULTRATONE K900FX
The 90-Watt ULTRATONE K900FX excels as an extraordinarily-versatile keyboard and drum amplifier, as well as a high-quality 3-channel Public Address (PA) system, with a world class, 12″ Bugera Speaker – all in one compact and easy-to-transport package. Specializing in rich, accurate tone and professional features, such as a studio-grade Multi-FX Processor and our own FBQ Feedback Detection System, this powerful workhorse will bring out the best in your performance gig after gig.
Channel Your Sound
The K900FX gives you 3 independent stereo channels, each with separate Volume and FX Send controls, plus an additional XLR mic input on Channel 1 for the direct connection of a dynamic microphone. So, if you’re the kind of keyboardist or drummer with multiple instruments at your disposal, the K900FX is ready to handle up to 3 independent signals. It is also ideal for use as an all-in-one solution for keys and vocal applications.
The Master Section provides separate controls for FX Return, Master Volume and Phones. A stereo Aux Input allows you to play recorded music through the K900FX during performance breaks, or just for playing along. A separate headphone output is perfect for quiet practicing. The K900FX also features an integrated 35 mm pole socket for stand mounting and a Line Output for connecting to the house mixing board, or to your favorite recording device.
Big, Beautiful BUGERA
A powerful 12″ Bugera woofer, made by skilled artisans, works in connection with a custom-made 1.0″ high frequency driver for awesome, full-range sound. Long appreciated by the most demanding guitarists and bassists in the world, keyboard players and PA specialists are now getting in on the Bugera action!
Your Personal Effects
The onboard 24-bit digital FX processor, with 100 amazing presets, adds a high-tech dash of reverb, chorus, flange, delay, pitch shift and other effects to your sound. The Main Section gives you separate controls for FX Return, Master Volume, Phones and Shape, while a CD Input allows you to play recorded music through the K900FX during performance breaks, or just for playing along.
FBQ – Totally Feedback-Free
For more than 20 years, Behringer has designed and manufactured some of the most successful FBQ Feedback Elimination processors. Now you can own and enjoy the benefits of this technology, as we have integrated the revolutionary FBQ Feedback Detection System in this product, so your sound system is completely feedback-free, allowing you to focus on your performance. Utilizing an ultra-fast feedback detection system, this ingenious circuitry helps you recognize and tame feedback frequencies immediately. When feedback is sensed in a specific frequency range, the LED on the associated EQ fader illuminates, showing you at a glance which fader to lower to overcome the feedback. That simple!
So Much More Than Just a Keyboard Amp
Versatility, incredible sound and durability all come together beautifully in this lightweight, powerful Keyboard/Drum Amplifier and PA System package. Armed with a massive 90-Watt power amp, concert-grade 12″ Bugera Speaker, studio-grade Multi-FX processor and a 5-band graphic EQ with our FBQ Feedback Detection System, the ULTRATONE K900FX will unlock your full potential. Plug in and hear the K900FX at your local dealer today!
FEATURES
- Ultra-flexible 90-Watt 3-channel PA System / Keyboard Amplifier
- Powerful 12” Bugera woofer and custom-made 1” driver for ultimate sound reproduction
- Integrated digital FX processor with 100 awesome presets including reverb, chorus, flanger, delay, pitch shifter and various multi-effects
- Revolutionary FBQ Feedback Detection System instantly reveals critical frequencies
- Full 3-channel operation with separate Volume and FX Send per channel
- Additional XLR mic input on Channel 1 for direct connection of dynamic microphones
- Dedicated 5-band graphic EQ for awesome sound shaping
- Line output for direct connection to your mixing console
- Main section with FX Return level and Master Volume
- Subwoofer output for ultimate low-end power
- CD input allows you to play along to your favorite music
- Separate headphone output-perfect for quiet practicing
- Integrated 35-mm pole socket for stand mounting and use as PA System
- Designed and engineered in Germany





AIAIAI Isolation Pads for UNIT-4 Studio Monitors (Pair)
Arturia AstroLab 37 Stage
Behringer Truth B2031A (Each)
KRK Rokit RP8 G4 (Black-Pair)
Allen & Heath ZED 6
Apogee Electronics Symphony I/O Mk II - Audio Interface (8x8)
Ableton Live 12 Intro
Electro Voice ELX200-10P
Denon DJ Prime 4+ Standalone
Alesis Strike Amp 12 MK2
Mackie DLZ Creator Adaptive Digital Mixer
Novation Launchkey 49 White MK4
Behringer Xenyx QX602MP3
AIAIAI TMA 2 Studio Wireless+
Korg Keystage 49
Bose DesignMax DM10S-SUB Subwoofer (White)
Gravity CART M 01 B
AlphaTheta DDJ FLX 2
Ableton Live 12 Suite
Korg Krome EX 88
Akai LPD8
Native Instruments Komplete Kontrol A49
KORG nanoKEY2 (Black)
Arturia KeyLab 61 MK2 White
Behringer Ultra DI DI20
AKG CHM 99 Hanging Microphone (Black)
Focal Shape 40 (Pair)
KRK Systems Rokit RP5 G4 (Black-Pair)
Gravity MS CAB CL 01 Cab Clamp
Audio Technica ATH M50X WH Limited Edition
KRK Rokit RP7 G4 (Black-Pair)
Kali Audio LP 8
LD System Stinger SUB 15 G3
LD System Maui 5 (Black)
Dynaudio LYD 5 (Black a pair)
Behringer Nekkst K5 (Pair)
Behringer C1
Novation 49 Remote SL Mk III
Rode RODECaster Pro
LD System Maui 900 (Black)
AKG C7
Native Instruments Komplete 12 Ultimate Update
KORG nanoKEY2 (White)
Rode Broadcaster
Native Instruments Komplete Kontrol A25
Shure SM7B
PreSonus Revelator USB C Microphone w/Studio Live Voice Effects
Behringer BU5
Korg Volca Nubass
Mackie EleMent Carbon Premium
Audio Technica AT4047MP
Behringer RD 6 BK
Fifine K688
Monkey Banana Mico (Black)
Arturia KeyLab Essential 61 MK3 (Black)
UDG Creator NI Maschine Studio Hardcase MKII (Black)
UDG Creator Pioneer RMX 500 Hardcase MK2 (Black)
Rode Tripod Mini Microphone Stand
AIAIAI A04 Headphone Hardcase
Neumann BCM 705 (Silver)
PreSonus PM2 Small Diaphragm Condensor Microphone Matched Pair
Mackie Mix12FX
Mackie SRM 150
Mackie ProFX22v2
Audient EVO 4
Mackie Mix5
Behringer DDM4000













There are no reviews yet.