universal speaker mounting brackets

Mount-It! Height Adjustable TV Wall Mount Bracket with Counterbalance Gas Spring Arm, Full Motion Articulating Design Fits Up to VESA 400x400 mm

Monoprice Dual Source 4-Channel A/B Speaker Selector With Volume Control, Up To 100 Watts Per Channel

Monolith 32in Steel Speaker Stand with Adjustable Top Plate (Each) Hold Speakers Weighing Up To 75 Pounds, Perfect For Center or Bookshelf Speakers

Mount-It! Motorized Fireplace Height Adjustable TV Wall Mount, Remote Control Electric Pull Down Mantel Mounting Bracket, Up to 77 Lbs Capacity

Monolith 24in Cherry Wood Speaker Stand with Adjustable Top Plate, Cherry (Each) Hold Speakers Weighing Up To 75lbs, For Center or Bookshelf Speakers

Monolith by Monoprice Easel Style Speaker Stand, 32in (Each)