X0101 EFFECT 33 LIVE 2011-12-14 14:00:00

S-4

0001216596 NORTEK INC 333-178375 0001435223 Aigis Mechtronics, Inc. 333-178375-38 0001302994 Broan-Mexico Holdings, Inc. 333-178375-37 0001302808 Broan-NuTone LLC 333-178375-36 0001399563 Lite Touch, Inc. 333-178375-35 0001399560 Magenta Research Ltd. 333-178375-34 0001303071 Mammoth, Inc. 333-178375-33 0001349887 Niles Audio CORP 333-178375-32 0001303073 Nordyne LLC 333-178375-31 0001349884 NORDYNE International, Inc. 333-178375-30 0001349889 Nortek International, Inc. 333-178375-29 0000073373 NUTONE LLC 333-178375-28 0001303006 OmniMount Systems, Inc. 333-178375-27 0001303020 Broan-NuTone Storage Solutions LP 333-178375-26 0001302876 CES Group, LLC 333-178375-25 0001303002 CES International, Ltd. 333-178375-24 0001399572 CLPK, LLC 333-178375-23 0001035523 ELAN HOME SYSTEMS LLC 333-178375-22 0001525185 Ergotron, Inc. 333-178375-21 0001349883 Gates That Open, LLC 333-178375-20 0001399564 Gefen, LLC 333-178375-19 0001302907 Governair LLC 333-178375-18 0001399570 Huntair, Inc. 333-178375-17 0001399568 Huntair Middle East Holdings, Inc. 333-178375-16 0001302995 Linear LLC 333-178375-15 0001303082 Operator Specialty Company, Inc. 333-178375-14 0001399573 Pacific Zephyr Range Hood, Inc. 333-178375-13 0001349885 Panamax LLC 333-178375-12 0001303019 Rangaire GP, inc. 333-178375-11 0001303021 Rangaire LP, Inc. 333-178375-10 0001399559 Secure Wirless, Inc. 333-178375-09 0001112421 SPEAKERCRAFT, LLC 333-178375-08 0001303083 Temtrol, LLC 333-178375-07 0001504762 AVC Group, LLC 333-178375-06 0001525186 TV One Broadcast Sales Corp 333-178375-05 0001302948 Xantech LLC 333-178375-04 0001399576 Zephyr Ventilation, LLC 333-178375-03 0001525187 Barcom Asia Holdings, LLC 333-178375-02 0001525188 Barcom China Holdings, LLC 333-178375-01