Extron SMK F SF 10C Plus (part number 70-1247-02) — floor standing leg kit that lets the SF 10C SUB subwoofer sit on the floor when a plenum suspension is off the table.

Not every room offers a plenum deep enough to hang an in-ceiling subwoofer, and not every architect will allow it. The SMK F SF 10C Plus gives the SF 10C SUB a second life as a floor-standing unit inside a millwork cabinet, behind a masking wall, or tucked into a stage void. Two leg sets ship in the box: the long set stands the subwoofer upright, and the short set lays it on its side so the port fires sideways into the listening space — the arrangement you need under a stage or anywhere headroom is measured in inches. Every leg surface accepts paint, so the finished install disappears into the surrounding joinery.

Key Capabilities

• Four long legs configure the SF 10C SUB for vertical floor standing.
• Four short legs configure it for horizontal, side-firing placement.
• Hardware pack covers one leg set: 12 screws with locking nuts and 24 washers.
• Paintable throughout for a finish-matched result in cabinets and masking walls.
• Purpose-built for the SF 10C SUB SoundField in-ceiling subwoofer — no adapters required.
• Legs fasten to the subwoofer's existing installation brackets.

Where It Is Used

Performing-arts venues with under-stage subwoofer positions, houses of worship, cinema and screening rooms, corporate auditoriums, and high-end conference spaces — anywhere low-frequency reinforcement is called for but the ceiling void cannot take the load or the design brief rules out an overhead install.

Specifications at a Glance

• Long legs: four, for vertical standing
• Short legs: four, for horizontal standing
• Fasteners: 12 screws and locking nuts, 24 washers
• Compatible subwoofer: SF 10C SUB
• Finish: paintable

Also referenced as Extron SMKFSF10CPlus, SMK-F-SF-10C-Plus, part number 70124702.