Check the listing for details. Effects Bass STACK BUFFALO Speaker Simulator With OVERDRIVE EQUALIZER COMPRESSOR. Condition: New. Listed at 141.30 USD. Features: 1.Integrate 3 Effect units: OVERDRIVE,EQUALIZER,COMPRESSOR 2.Excellent box simulation allows the machine to output to any kind of audio equipment 3.Aux style input The combined effects abandons the cumbersome functions of similar effects and retains the most basic and practical core technology. It is simple and direct and can be competent for various occasions of piano practice and rehearsal. Introduction Combining compressor / overdrive / EQ / speaker simulator with di Loop effects Professional Cab - Sim allows output to any kind of audio equipment Aux in Balance output and Unbalance output Unbalanced output can choose Cab - Sim on / off Specifications 1 . Dimensions : 15.3 (L) * 12.2 (W) * 5.4 cm ( Include protuberances) 2 . Weight : 545g 3 . Power Supply : DC 9 V , 150mA 4 . Impedance : bass IN , 500 KΩ,UNBAL OUT 1 KΩ , PHONES OUT 4Ω , BAL OUT 1 0 0 Ω 5 . Current Drain : 126 ma Package List: 1 * Bass Pedal 1 * Users' Manual