Because today’s compact cars offer less space, the JBL Club Subwoofers are designed to fit into small enclosures. They’re slim, sleek, stylish, and don’t sacrifice on sound. Unlike most dual-voice coil woofers, which provide either 1 or 4 ohms or 2 or 8 ohms, the JBL Club Subwoofers allow the listener to 2-ohm and 4-ohm at the flip of a switch, providing the two most often used impedances from a single woofer. This allows the system designer unparalleled flexibility in extracting every last watt from your amplifier without compromising stability and thermal safety margins.