Behringer K1800FX Keyboard Amplifier


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The Behringer Ultratone K1800FX is a 4-channel, 180-watt keyboard amplifier and small PA in a rugged bass-reflex enclosure, housing a 12" woofer and a custom 1" horn-loaded tweeter. It features 4 stereo input channels, built-in 24-bit digital effects processing with 100 presets, feedback detection and suppression circuitry, a master 7-band graphic EQ, and an XLR input for dynamic microphones.

180-watt, 4-channel PA/keyboard amplifier in bass reflex cabinet with 12" woofer and a custom 1" horn tweeter
Full 4-channel stereo operation with separate volume and FX Send controls, additional XLR mic input on channel 1 for direct connection of dynamic microphone
Internal 24-bit digital FX processor with 100 presets including reverb, chorus, flanger, delay, pitch shifter and various multi-effects
FBQ Feedback Detection System with control knob indicates and eliminates specific feedback frequencies
Dedicated 7-band Master graphic EQ
Rugged carpet-covered wood enclosure with metal corners, carrying handle, metal speaker grille
Direct XLR and 1/4" line outputs and headphone out

Power Output180 Watts
Nominal Input LevelNot Specified by Manufacturer
Nominal Output LevelNot Specified by Manufacturer
Speakers1 x 12" Woofer
1 x 1" horn-loaded custom Tweeter
Input Connections1 x XLR Female Dynamic Microphone In
8 x 1/4" TS Phone Instrument In
2 x RCA Phono Line In
Output Connectors2 x XLR Male Line Out 
2 x 1/4" Stereo Headphone Out
2 x TS Phone Direct Out
2 x 1/4" Speaker Out
Power Supply120V, 60 Hz