The Blam EX 400 is part of Blam’s Expert Series, a compact 4-channel Class AB amplifier engineered for refined acoustic performance and accurate sound reproduction. It delivers 4x100W RMS at 4 ohms and uses high-quality internal components to minimise distortion and preserve tonal balance. The EX 400 offers bridgeable channels for flexible 3-channel or 2-channel configurations, high-level and low-level inputs for OEM and aftermarket integration, built-in crossovers and thermal protection. Professional installation is recommended to optimise gain structure, system matching and sound staging.