Acoustic systems with subwoofer level control

homemade, kit 5.1, passive/active, 8 Ohm, 40 – 22000 Hz, 2

homemade, kit 2.1, active, 350 W, 4 Ohm, 45 – 19000 Hz, 2

concert, kit 2.1, active, 800 W, 45 – 20000 Hz, bass reflex, 2

homemade, kit 5.1, passive/active, 30 W, 8 Ohm, 105 – 34000 Hz, 2

homemade, kit 5.1, passive/active, 750 W, 8 Ohm, 30 – 30000 Hz, 2

concert, kit 2.1, active, 500 W, 4 Ohm, 40 – 19000 Hz, bass reflex, 2

homemade, kit 5.1, passive/active, 270 W, 4 Ohm, 35 – 34000 Hz, passive emitter, 2

homemade, kit 5.0, passive/active, 80 – 20000 Hz, 2

homemade, kit 5.1, passive/active, 700 W, 8 Ohm, 32 – 23000 Hz, 2

concert, kit 2.1, active, 1200 W, 4 Ohm, 32 – 20000 Hz, bass reflex, 2

homemade, kit 2.1, passive/active, 300 W, 8 Ohm, 39 – 20000 Hz, 1

concert, kit 2.0, active, 1000 W, 51 – 20000 Hz, Bluetooth