S-Series 4-Channel Amplifier Hi-Res Audio Certified • Alpine’s Class D Amplifier Circuit • Built-in Selectable / Adjustable Crossovers • Dimensions: 8.7”(W) x 2.25”(H) 8.25”(D) • Frequency Response: 20Hz – 40kHz • S/N Ratio: >83dB • Power Output: 60W x 4 @ 4Ω • 90W x 4 @ 2Ω • Bridged Power: 180W x 2 @ 4Ω






