Package Includes: (1) Rockville RXD-M3 4000 Watt Peak/1000w Dyno-Certified RMS Mono 1 Ohm Amplifier Car Audio Amp, (1) Rockville RWK4CU 4 AWG Gauge 100% Copper Complete Amp Installation Wire Kit OFC Power & Dyno-Certified Output: The Rockville RXD-M3 delivers Dyno-Certified RMS 1000W @1Ω, 750W @2Ω and 550W @4Ω with 4000W peak headroom. High-speed MOSFET power supply, optical coupler Class-D topology and studio-grade bipolar output transistors combine to produce tight, low-distortion bass, measured <0.05% THD and >100dB S/N for clean, high-impact subwoofer performance in competition, car shows and daily listening sessions. Frequency response: 10Hz-500Hz. Controls & Tuning: RXD-M3 features a fully adjustable 12dB/octave crossover with differential circuitry, precise subsonic filter (15–55Hz), adjustable low-pass (50–250Hz), phase control switch, and a 12dB bass equalizer. Additional conveniences include mute and delay soft-start, status LED indicators, and a dashboard remote subwoofer control to fine-tune bass level without accessing the amp location. Protection & Build Quality: The RXD-M3 includes full IC-controlled protection circuitry, professional peak limiter circuitry, thermal and short protection, mute/soft-start and a robust 120 Amp external in-line ANL fuse block. PCB layout is optimized for cooling and low-noise operation; premium Siemens correction capacitors and TL072 op-amps reduce distortion and improve transient response for reliable, long-term high-current performance. Chassis measures 8.5" x 1.8" x 14.5". Kit Materials & Installation: The RWK4CU kit is engineered for low-loss installs using 100% silver-tinned oxygen-free copper with 1862 strand count, SuperFlex insulation, triple-shielded RCA interconnects and a CNC gold-plated Mini ANL fuse holder with a 120A fuse. Kit includes 17ft power, 3ft ground, 17ft RCA, 25ft 14AWG speaker cable, ring/spade terminals, firewall grommet and zip ties for tidy professional wiring. The Rockville RXD-M3 + RWK4CU bundle pairs Dyno-Certified mono power with a professional installation kit to deliver a turnkey solution for high-output car subwoofer systems. Designed for builders who demand verified RMS performance, the RXD-M3’s optical coupler Class-D design, high-speed MOSFET supply and bipolar output transistors deliver deep, accurate bass with minimal distortion and exceptional signal-to-noise performance.

This bundle is engineered for sustained high current: RXD-M3’s 120A external ANL fuse block, full IC protection and professional peak limiter protect gear during competition and prolonged use, while adjustable crossovers, subsonic filter and remote dash bass control give installers precise tuning. The RWK4CU wiring kit supplies 100% silver-tinned oxygen-free copper conductors, triple-shield RCA, a gold-plated ANL holder and all terminals/accessories to complete clean, low-loss installations up to 20ft.

Key Details:
Dyno-Certified 1000W RMS @1Ω, 4000W peak headroom.
High-speed MOSFET supply; OC Class-D design; <0.05% THD.
Frequency response: 10Hz-500Hz; compact chassis measures 8.5" x 1.8" x 14.5".
120A external ANL fuse, IC protection, peak limiter and soft-start.
RWK4CU: 100% silver-tinned OFC, 1862 strand count, triple-shield RCA.
Includes power/ground/RCA/speaker wires, ANL holder+120A fuse, terminals and hardware.

A complete, pro-grade amp + wiring bundle for installers and enthusiasts building high-output, low-noise subwoofer systems.