Acoustic systems with bass reflex

homemade, 1.0, passive, 8 Ohm, 53 – 40000 Hz, bass reflex, 2

concert, 1.0, passive, 500 W, 8 Ohm, 65 – 20000 Hz, bass reflex, 2

concert, 1.0, passive, 150 W, 8 Ohm, 65 – 20000 Hz, bass reflex, 2

concert, 1.0, active, 700 W, 45 – 20000 Hz, bass reflex, 2

concert, 1.0, active, 2500 W, 50 – 18000 Hz, bass reflex, USB port, 2

information, 1.0, passive, 8 Ohm, 80 – 35000 Hz, bass reflex, 2

homemade, kit 2.0, active, 8 Ohm, 62 – 21000 Hz, bass reflex, 1

concert, kit 1.1, active, 1200 W, 37 – 15000 Hz, bass reflex, Bluetooth, 1

concert, 1.0, active, 150 W, 6 Ohm, 90 – 12000 Hz, bass reflex, USB port, 1

homemade, 1.0, passive, 200 – 48000 Hz, bass reflex, 1

concert, kit 2.1, active, 2400 W, 35 – 20000 Hz, bass reflex, Bluetooth, 1

concert, kit 2.1, active, 1000 W, 37 – 15000 Hz, bass reflex, Bluetooth, 1

information, 1.0, active, 120 – 15000 Hz, bass reflex, 1

homemade, kit 2.0, passive, 120 W, 4 Ohm, 50 – 20000 Hz, bass reflex, 1

concert, 1.0, active, 100 W, 100 – 17500 Hz, bass reflex, 1

concert, kit 2.1, active, 1000 W, 10 Ohm, 40 – 20000 Hz, bass reflex, USB port, Bluetooth, 1

concert, kit 1.1, active, 900 W, 43 – 20000 Hz, bass reflex, 1

homemade, kit 2.0, 100 W, 45 – 22000 Hz, bass reflex