Behringer ACX900 Ultracoustic Combo Amplifier

267.00 RRP 297.00 (including VAT @ 23%)

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Can be delivered to you on: 8th December 2016
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30 day money back guarantee included

30 day money back guarantee included

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Product Ref: 5570

  • Two Dedicated Input Channels for a Guitar and a Microphone
  • 90 Watts Power Output at 4 Ohms
  • 2 x 8'' Bugera Dual-Cone Speakers
  • Integrated 7-Band Graphic EQ with Revolutionary FBQ Technology
  • 2 Digital FX Processors with 16 Effects Presets

Behringer ACX900 Ultracoustic Combo Amplifier


The Behringer ACX900 Ultracoustic Amplifier features 90 watts of power combined with two 8'' Bugera dual-cone speakers that deliver exceptionally accurate sound reproduction with crystal-clear mids and sparkling highs. Perfect for intimate performances within small venues, the ACX900 has an integrated 7-band graphic EQ that provides versatile sound shaping, along with two digital FX processors and revolutionary FBQ technology.

Product Ref: 5570

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Full Description

View Full Description

Exceptional Stereo Sound

The Behringer ACX900 features a 90-watt stereo amplifier with two dedicated input channels; one with a single 1/4'' input jack for your instrument and a second with a 1/4'' input and XLR input. This combination of inputs is perfect for one-person performances with an acoustic guitar and vocals.

Custom-Engineered Transducers

The 8'' Bugera dual-cone speakers were designed specifically for the Ultracoustic series of guitar combo amplifiers. Each speaker has been engineered to perform flawlessly with every other element of the ACX900 to ensure professional performance.

World-Class FX and More

The Ultracoustic amplifier is equipped with a 24-bit FX processor on each channel that features 16 presets including reverb, modulation, delay and a variety of other effects combinations. The included F112 footswitch allows you to remotely activate/deactivate the effects processor on either channel. Additionally, the instrument channel has a Phase switch which provides you with a convenient way to eliminate feedback that's commonly associated with acoustic guitar pickups.

Integrated 7-Band FBQ Equaliser

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 innovative technology thanks to the integration of Behringer's revolutionary FBQ Feedback Detection System. Each channel of the ACX900 features a 7-band graphic EQ with the innovative FBQ system which instantly indicates the specific frequency range where feedback is occurring and allows you to instantly eliminate it.


  • Powerful 90-watt 2-channel stereo amplifier for acoustic instruments and vocals
  • 2 original 8'' Bugera dual-cone speakers for exceptionally accurate sound reproduction
  • 2 integrated digital FX processors each with 16 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 or BTR2000, plus more
  • 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
  • Designed and engineered in Germany


  • Power Rating: 2 x 45W / 2 x 4Ω
  • DSP Converters: 24-Bit Sigma-Delta, 64/128- Times Oversampling
  • Sampling Rate: 40kHz
  • Speaker Size: 2 x 8''
  • Speaker Type: Bugera™ Dual Cone
  • Impedance: 4Ω
  • Power Handling: 60W
  • Power Consumption: Maximum 135W
  • Power Connector: Standard IEC Receptacle
  • Dimensions: 423mm x 526mm x 232mm / 16.7'' x 20.7'' x 9.1'' (H x W x D)
  • Weight: 37lbs / 16.8kg

Audio Inputs

  • Instrument Input: 1/4'' TS, Unbalanced
    • Impedance: 10mΩ
  • Mic Input: XLR, Balanced
    • Impedance: 4kΩ
  • Line Input: 1/4'' TRS, Balanced
    • Impedance: 40kΩ
  • Instrument Insert Return: 1/4'' TS, Unbalanced
    • Impedance: 220kΩ
  • Mic Insert Return: 1/4'' TS, Unbalanced
    • Impedance: 220kΩ
  • CD Input: RCA
    • Impedance: >10kΩ

Audio Outputs

  • Line Output: XLR, Balanced
    • Impedance: 4.3kΩ
    • Maximum Output Level: >24dBu
  • Instrument Insert Send: 1/4'' TS, Unbalanced
    • Impedance: 100Ω
    • Maximum Output Level: >18dBu
  • Mic Insert Send: 1/4'' TS, Unbalanced
    • Impedance: 100Ω
    • Maximum Output Level: >18dBu
  • Tuner Output: 1/4'' TS, Unbalanced
    • Impedance: 33kΩ
    • Maximum Output Level: >6dBu
Your order may be delivered with a plug adapter
If any electrical items in your order are supplied with a United Kingdom plug connection, a suitable plug conversion adapter will be included free of charge.