Boss Audio 4" MR4.3B Box Speakers - Black - 200W [MR4.3B] Marine Navigation & Instruments | Fishfinder Only Inside: 2-1/2"W x 4"H x

Inside: 2-1/2"W x 4"H x 1/2"D

16 gauge pre-galvanized steel uprights

Delay:  Standard

Plug & play switch wiring harness connector

Mounting Depth - 2

Boss Audio 4" MR4.3B Box Speakers - Black - 200W [MR4.3B] Marine Navigation & Instruments | Fishfinder Only Inside: 2-1/2"W x 4"H x4" MR4. 3B Box Speakers White 200W Whether you are at a boat party or spending a day out on the lake, you can enjoy the premium quality sound of the BOSS Audio 3 Way Marine Enclosed Speaker System. This enclosed marine speaker system features a tweeter and 1. 5" polypropylene cone. Swivel brackets are included for a smooth, simple installation process. The versatile speakers can also be installed indoors or on the patio, giving you plenty of options