DS18 FRP-2.5K/BL FRP Compact Full-Range Class D 1-Channel Amplifier 2,500 Watts Rms @ 1-Ohm BLUE 1501-2000 3" D) with a robust

3" D) with a robust cast aluminum heatsink and a 1 Year Warranty

Auto-turn On system: Provides Automatic Remote Trigger via audio connector

multi-channel install

Impedance: 2+2 ohms (dual 2-Ω voice coils) — offers flexible wiring options and broader amplifier compatibility

What's in the box: Infinity Primus 603F owner's manual

DS18 FRP-2.5K/BL FRP Compact Full-Range Class D 1-Channel Amplifier 2,500 Watts Rms @ 1-Ohm BLUE 1501-2000 3" D) with a robustDS18 FRP 2. 5K BL is a compact full range mono amplifier delivering 2,500W RMS at 1, designed for high demand car audio systems where space is limited. The blue variant pairs powerful output with DS18s durability features for performance focused installs. RMS Power @ 4: 700W Solid continuous power for stable, low impedance loads while keeping heat under control. RMS Power @ 2: 1300W Higher current capability for demanding sub setups or aggressive full