The large speaker is 11" x 22".
It has two of the gizmos, so I assume the single unit will act like left and right speakers.
I inserted a piece of matching carpet over the vinyl of the speaker.
I thought the carpet would look better. I don't know if that will affect the sound.
The vinyl is embossed with "Wild Thing" big letters. That was the name of the RV these were intended for.
I will mount this behind the back seat.