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4 Altitude 4-channel amplifier is a high-efficiency Class D four-channel power unit built for modern vehicles
engineered specifically for the American Bass XFL 15" subwoofer to deliver deep
Magnet: 654 Oz High-Efficiency Magnet
9% efficiency at 4 ohms
minimizing panel flex under high excursion
DC Audio 90.4 4-Channel Amplifier Trinity Audio 4 Altitude 4-channel amplifier isDC Audio 90. 4 4 Channel Amplifier is a 4 channel Class A B amp with a fully active crossover, engineered for SQ focused builds that demand precise frequency control and clean power across channels. It provides 90 W RMS per channel at 4 ohms, 130 W per channel at 2 ohms, and 250 W per bridged pair at 4 ohms (500 W total). Fully Active Crossover: Each channel has independent filtering, letting you tailor front stage and subwoofer integration for
