The Alpine R2-A60F is a premium Next-Generation R-Series 4-channel Class-D amplifier engineered for high-performance daily-driver and audiophile-grade car audio systems. Designed to pair perfectly with Alpine’s R-Series speakers, the R2-A60F combines compact installation flexibility, Hi-Res Audio certification, strong real-world output, and advanced tuning controls into one of the most respected modern 4-channel amplifiers on the market. It’s especially popular in SQ and SQL builds because of its clean power delivery and wide bandwidth response. Main Features Next-Generation R-Series amplifier platform 4-channel Class-D amplifier Hi-Res Audio Certified Compact reduced-footprint chassis Variable HPF and LPF crossovers Band-pass capability Bridgeable channel configuration High-level input with auto turn-on Premium low-noise components Wide-bandwidth audio reproduction up to 45kHz Designed specifically for R-Series speaker systems Efficient thermal management design Specs Specification Details Amplifier Class Class-D RMS Power @ 4Ω 100W x 4 RMS Power @ 2Ω 150W x 4 Bridged RMS Power 300W x 2 @ 4Ω Frequency Response 10Hz – 45kHz Signal-to-Noise Ratio >80 dB THD+N