Monoprice Banana Binding Post Two-Piece Inset Wall Plate for 4 Speakers - Coupler Type Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers. Same type of connector front and back. No soldering required. Corrosion resistant gold platedconnectors. Spacing is compatible with PID# 2944 & 2945 banana plugs.