Focal Integration IBus 20 Compact 75-watt powered 8" subwoofer

Product Highlights:

• compact powered subwoofer
• aluminum enclosure with 8" sub
• built-in amplifier (75 watts RMS/150 watts peak)
• frequency response: 45-150 Hz
• variable low-pass crossover (50-150 Hz)
• phase control switch (0 or 180 degrees)
• bass boost control (0 dB to +18 dB)
• preamp- and speaker-level inputs
• auto turn-on switch
• wired remote control
• 8- or 10-gauge wiring recommended (not included)
• dimensions: 14"W x 3"H x 9-7/8"D
• warranty: 1 year

Focal understands that it's not easy to get bass into every vehicle. They built the IBus 20 powered subwoofer to address this issue, so folks with bass-deficient systems in space-challenged vehicles could add some low-end punch. At just under 3" tall, this sub can fit under or behind many seats in the spaces usually reserved for stale bits of food. Focal built its chassis out of rigid aluminum, so it'll take a beating while it provides an incredibly stable home for the 8" sub.