These days, going “unplugged” often still means plugging into something. Make the sweet sounds of your acoustic guitar and voice big enough to cut through the clink of coffee cups and casual chit-chat, with the ULTRACOUSTIC ACX900. With 90 Watts...


Sweet Stereo Operation

The ACX900 features a 90-Watt stereo amplifier with two dedicated input channels: one with a single ¼ " input jack for your instrument; and a second with a ¼ " input and XLR input – making it the ideal amp for a one-person show with an acoustic...


Custom-Engineered Transducers

We never cut corners on our guitar speakers, and we never just pull what we have off the shelf. Our 8" BUGERA dual-cone speakers were designed specifically for the ULTRACOUSTIC Series amplifiers – it’s what sets us apart from the competition....


World-Class FX & More

The ACX900 features a 24-Bit FX processor per channel with 16 incredible presets including world-class reverb, modulation, delay and a variety of effects combinations. We also include our F112 footswitch for remote activating and deactivating the...


Onboard 7-Band FBQ Equalizer

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...


    • Powerful 90-Watt, 2-channel stereo amplifier for acoustic instruments and vocals
    • 2 original 8" BUGERA dual-cone speakers for ultimate sound reproduction
    • 2 integrated digital FX processors each with 16 awesome effects programs including reverb, modulation, delay, and various effects combinations
    • Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies
    • 2 dedicated instrument and microphone channels with separate Gain and FX controls
    • Individual 7-band graphic EQ on each channel for awesome sound shaping
    • Dedicated Tuner switch per channel for use with external tuner such as BEHRINGER TU100, BTR2000, etc.
    • Switchable Phase correction on Channel 1 for feedback prevention
    • Instrument and mic FX Inserts for external effects devices (stomp boxes, rack effects, etc.)
    • CD input allows you to play along to your favorite music
    • Balanced stereo XLR Line Out with Ground Lift switch for direct connection to your mixing console
    • Dual footswitch FS112 for FX 1 & 2 bypass included
    • 3-Year Warranty Program*
    • Designed and engineered in Germany


Hours of Operation
Monday - Friday: 10am - 8pm
Saturday: 10am - 7pm
Sunday: 10am - 5pm