Greetings 3 amplifiers available The first is a Kenwood KAC-M526 (sold) It works perfectly and has a strong sound The second is a Sony Xplod XM-502Z, known for its very strong and sharp sound The third is a Sony Xplod XM-SW3 This amplifier has a dedicated channel for the subwoofer that outputs 120 RMS, and two channels for regular speakers, totaling 3 channels. It's a distinctive amplifier that combines both and is very powerful for subwoofers, producing a "drum-like" sound. Price is negotiable. Contact me for any amplifier you're interested in. The sale is flexible.