SLAPS-12 Passive Radiator

SLAPS-12 Passive Radiator

The Earthquake tunable SLAPS-12 passive radiator provides additional bass without additional amplifier power or enclosure volume. Designed to perfectly complement all good quality long-throw woofers on the market. SLAPS adds up to +6dB of bass compared to regular sealed and ported enclosures.

SLAPS is a patented type of passive device that significantly increases subwoofer efficiency and ability for ultra-low frequency reproduction. SLAPS is short for Symmetrically Loaded Audio Passive System. As the name indicates, SLAPS is built symmetrically which distinguishes it from traditional passive devices. This technology integrates identical components in its suspension design resulting in identical stoke regardless of forwards or backwards motion. The high efficiency and performance is a result of the pneumatic coupling between SLAPS and an active driver.

SLAPS overcomes the limitations known from the conventional sealed and ported enclosures that tends to limit excursion. The unique design allows the active driver compression free excursion resulting in deep, dynamic and powerful bass response.

SLAPS design differs from other passive devices by having double edge suspension and no center spider. It was designed from the ground up to be operated and controlled pneumatically. Traditional passive devices are often just a normal active driver where the primary motor system (voice coil and magnet) has been removed. Conventional devices are designed to be powered electrically, in which the force emanates from the drivers conical center. A passive device is operated pneumatically by air pressure from the active driver. For pneumatic operation, a traditional unit does not perform identically in positive and negative pressure environments. (imploding edge suspension and positive over ring).

SLAPS have a dual structure of identical opposites, ie. that there is an introvert and an extrovert edge suspension and no spider. This gives identical properties in both the negative and positive pressure domain. SLAPS thus behaves pistonically and accurately and do not have the “hesitation” traditional passive devices seem to have when you observe them in operation.