DD Audio 608F-D4 8" Dual 4-Ohm Subwoofer

The 600 Series latest revision is a mean mother “f”. In the previous “e” revision they got bigger and better; and in this latest “f” revision they receive precision engineered, thermal cooling enhancements of major significance along with some design work that is literally cutting edge. DD is pushing the already highly efficient 600 subwoofers to meet our evolving performance standards to ensure longer periods of loud, continuous play.

The DD design philosophy is to prioritize the maximization of total efficiency: converting raw power to clean sound, while managing the intense heat created by this conversion. Given this mandate, the new 600 “f” revision receives a vented aluminum voice coil insert and vented, finned, aluminum heatsink to conduct and transfer heat away from the subwoofer’s most vulnerable components. As the increased power handling will undoubtedly bring with it greater demand for excursion, a taller surround, double stitched to a fiberglass loaded, non-pressed cone, adjoined to a voice coil featuring increased winding length with DD’s proven double layer spider, offers increased Xmax and elegant styling. The heat sink features beautifully carved, polished aluminum DD logos, and the motor is wrapped in a rubber boot with an all new embossed design.

• Advanced Heat Management: Includes a dual-stage, cast aluminum finned heatsink and a vented aluminum voice coil insert to pull heat away from vulnerable internal parts.
• Enhanced Excursion: Features a taller EROM rubber surround double-stitched to a fiberglass-loaded, non-pressed natural pulp cone for controlled, high-output bass.
• Heavy Duty Build: Utilizes a rugged cast aluminum basket, a triple-layer deep bass spider system, an extended pole shoe, and an embossed motor boot wrapper.

• Mounting Cutout Diameter: 7.37 inches
• Mounting Depth: 6.5 inches
• Overall Outer Diameter (with gasket): 8.5 inches
• Woofer Displacement: 0.07 cubic feet
• Sealed Enclosure Recommendation: 0.4 to 0.8 cubic feet
• Ported Enclosure Recommendation: 0.75 to 1.25 cubic feet

FEATURES:

• EROM surround
• Aluminum Heatsink and Thermal Transfer Insert
• High-temp, 2.5”, voice coil
• Triple Layer Deep bass, high excursion spider system
• Unique glass fiber and natural pulp cone
• Back plate coil gap venting
• Extended pole piece
• Cast aluminum basket