Alpine Status HDA-V90 Hi-Res 5-Channel Amplifier, 75W x 4 + 300W x 1 @ 4-Ohm, 100W x 4 + 500W x 1 @ 2-Ohm - • Hi-Res Audio Playback (192kHz/24Bit) • 5-Channel Amplifier • High-Efficiency Digital Circuit Design • Alpine’s Dual Negative Feedback Control Circuit • High Bandwidth Amplifier • Alpine’s Premium Class D Circuit Design • Copper-plated chassis • Black circuit board • One-sided terminal layout • Top panel sound controls • Quick connect power and speaker terminals • Optional Remote bass knob compatible (requires RUX-KNOB.2 or RUX-H01, sold separately) TECH SPECS - • Dimensions: 11.4375” x 7.5” x 2.125” • Power Rating: (14.4V, ≤1.0% THD+N) • 75W x 4 + 300W x 1 @ 4Ω • 100W x 4 + 500W x 1 @ 2Ω • Bridged: 200W x 2 @ 4Ω (ch1/2, ch3/4 only) • THD+N: 0.02% (10W into 4ohm) • S/N Ratio: 87dB (1W into 4ohm) • Frequency response: 8-60kHz (-3dB) • Damping factor: 500 (ch1/2/3/4), 1000 (subwoofer) • Selectable input level – HI/LO • Selectable 2/4/6ch input • Variable High pass / Low pass crossover • Variable Subsonic filter (subwoofer) • Bass EQ (0 to +12dB, Variable) • Auto-turn on with remote sensing Alpine RUX-KNOB.2 Remote Bass Knob