Used Sundown Audio SAEV41004 Amplifier

250 x 2 @ 4 ohms RMS (Bridged) 125 x 4 @ 2 ohm RMS 100 x 4 @ 4 ohms RMS Hi-fidelity Class A/B design Variable 12dB low & high pass filters: 40Hz-5kHz Power and protection indicators included Thermal, voltage, speaker short, and dc-offset protection circuitry The SAEv4 is engineered with high-fidelity Class A/B multi-channel architecture, providing an ideal balance between performance and affordability. Leveraging the latest half-bridge technology, these amplifiers deliver clean, powerful audio signals in a compact form factor. Featuring an all-new chassis and heatsink design with 33% more aluminum, this SAEv4 keeps your system cool even during intense listening sessions. The amp is packed with a variable subsonic, high pass and low pass filters, plus a 4-way protection circuit (thermal, voltage, speaker short, and DC offset). With an input sensitivity of 6V max and RMS power output of 125W x 4 at 2 ohms and 100W x 4 at 4 ohms, the SAEv4-100.4 is designed to drive your car audio system with precision and clarity. The variable crossover slope (LPF/HPF) and a high signal-to-noise ratio of 92dB further enhance audio quality, with an exceptionally low noise floor.