Introducing the HL2000.4, a powerhouse designed for those seeking top-notch performance and sonic fidelity in automotive amplifiers. With an impressive 2000W RMS output distributed across 4 channels of 500W RMS at 1 Ohm, the HL2000.4 offers exceptional versatility in installation. Each channel features independent controls for Front and Rear settings, including LEVEL adjustment for input signal and a customizable Crossover, allowing you to switch between LOW-PASS, HIGH-PASS, or FLAT (FULL-RANGE) modes for tailored sound shaping. This amplifier boasts a DIGITAL design and a FULL RANGE response spanning from 20 Hz to 16 KHz, ensuring a comprehensive audio experience across the frequency spectrum. Installation possibilities are abundant: Utilize 2 channels in Bridge mode for a robust 1000W output at 2 Ohms (Front, Rear). Configure 3 channels with two independently powered 500W setups and one channel in Bridge mode for 1000W output. Engage Tri-mode operation by bridging with a 2 Ohm speaker alongside 4 horns or 4 super tweeters per channel. Technical Specifications: Number of Channels: 4 RMS Power at 1 Ohm 12.6V: 4 x 435W RMS (STEREO) RMS Power at 2 Ohms 12.6V: 4 x 280W RMS (STEREO) RMS Power at 1 Ohm 14.4V: 4 x 545W RMS RMS Power at 2 Ohms 14.4V: 4 x 365W RMS Bridge Power @ 12.6V 2 Ohms: 2 x 870W RMS Bridge Power @ 13.8V 2 Ohms: 2 x 1100W RMS Operating Voltage: 9V ~15V DC Frequency Response: 20Hz ~16KHz Low Pass Crossover: 90Hz High Pass Crossover: 90Hz Signal-to-Noise Ratio: 90dB Total Harmonic Distortion: 0.3% THD Input Sensitivity: 200mV Input Impedance: 15K Ohms Minimum Output Impedance: STEREO: 1 OHM / BRIDGE: 2 OHMS Musical Signal Consumption: 97A Bass Signal Consumption: 194A Dimensions (H x W x L) mm: 77.5 x 235 x 240.5 mm Weight: 2.8 Kg Experience the pinnacle of automotive audio amplification with the HL2000.4, where power meets precision for an unparalleled sound journey.