The Blam 100RC is a 100 mm 2-way coaxial speaker engineered for high efficiency in low-impedance car audio systems. It provides 40W nominal power, 80W peak power and 90 dB sensitivity to deliver strong output from factory head units.

Build includes a coated cellulose pulp woofer with butyl surround and a large 70×15 mm magnet for improved motor strength. The 20 mm silk dome tweeter uses a neodymium motor and a lightweight CCAW voice coil. An integrated 6 dB/octave crossover is included and the driver fits standard 100 mm 4 inch speaker locations.