Alpine SPG-17C2 Type-G 6-3/4" 2-way car speakers — fits 6-3/4" and 6-1/2" openings at Crutchfield
Amazon.com: Alpine ALP19-R-W12D4 Car Audio Type R Series Sub Dual 4 Ohm 1500W Peak 12" Subwoofer : Electronics
Alpine - SPG-10C2 4" (10cm) COAXIAL 2-WAY SPEAKER
Universal Fit Alpine S-W12D2 Type S Triple 12" Subwoofer Loaded Sub Box New 793276242150 | eBay
Alpine - SWG-1244 12“ (30cm) Subwoofer (4Ohm)
Alpine SWG-1044 | Subwoofer - Subwoofer
Alpine SPG-69C2 Type-G 6"x9" 2-way car speakers at Crutchfield
Car Enclosed Subwoofer 12 "30 Cm Alpine Sbg-1244bp Sound Electronics Columns 89.8db Subwoofers For Cars Acoustics Auto Audio Parts Components Speaker - Subwoofers - AliExpress
Alpine R2-W12D4 12” R-Series 750W RMS Subwoofer Dual 4 Ohm Car Audio Sub R2W12D4 | eBay
Amazon.com: Alpine ALP19-R-W12D4 Car Audio Type R Series Sub Dual 4 Ohm 1500W Peak 12" Subwoofer : Electronics