Behringer Ultrabass Bxr1800h Ultra-Compact 180-Watt 2-Channel Bass Amplifier Head With Fbq Spectrum Analyzer, Compressor And Ultrabass Processor Ultra-compact and rack-mountable 180-Watt 2-channel bass amplifier Distortion channel with dedicated Gain, Shape and Level controls Ultra-musical, active 7-band graphic EQ with FBQ Spectrum Analyzer Integrated Compressor smoothes out volume peaks when playing dynamic slaps Balanced XLR DI and Line outputs for direct connection to your mixing console