Discussion Starter · #1 ·
Custom made Boston G5/GTR 12" sub/Passive radiator custom made to 1 cuft to fit in the mazda3/speed3 hatch area and allow access to cargo tray. This setup is 4-months old and driven off a JL 500/1 amp. Excellent condition and this is a SQ sub that gets extremly done very similar to the JL W7. The G5 sub faces the rear and the GTR passive radiator faces the seat back.