ALPHA 4-8 4" ( 2 Each ) American Standard Series Speaker Car Audio Airload (MMs) 34 grams Efficiency

Airload (MMs) 34 grams Efficiency Bandwidth Product (EBP) 87 Maximum Linear Excursion (Xmax) 6

Cloth-sealed

This is the same as many of the Bose drivers it resembles

Celestion 100 Alnico Magnet Anniversary Guitar speaker 8ohm

ALPHA 4-8 4" ( 2 Each ) American Standard Series Speaker Car Audio Airload (MMs) 34 grams EfficiencyIdeally suited for line arrays, car doors, side panels, and other tight fitting applications, the Alpha 4 is a versatile 110 watt driver that can be used full range, midbass, or as a midrange. They can be stacked in a column for vocal applications or with a tweeter and a sub for compact, high performance PA or MI applications. Applications Midbass Midrange Line Array Pro Audio Car Audio Bookshelf Speakers Satellite System Box Type: Sealed Vented