Bring on the bass extreme power handling with realistic response The Type-R subwoofers just keep getting better and better. Thanks to high-grade materials and optimised design, they reproduce all the low frequencies with extraordinary power and clarity

Alpine SWR-1223D Specifications :

• Peak Power 1800W
• RMS Power 600W
• Frequency Response: 24Hz - 500kHz
• High Excursion 1" Santoprene Edge
• Kevlar Reinforced Pulp Cone
• Dual Progressive Nomex Spiders with Edge Control
• Integrated Tinsel Lead Spider Design
• Custom Cast Aluminium Frame with Integrated Heat Transfer Plate
• Extended Length Dual-Flared Vented Pole Design
• High-Strength Brass Voice Coil Bobbin
• Heavy-Duty 10cm2 Push Terminals
• Computer Optimized Magnetic Circuit

Power Handling

• CEA-2031 Power Rating: 600 Watts
• Power Range: 600 - 1800 Watts
• RMS Power Handling: 600 Watts
• Peak Power Handling: 1800 Watts

Dimensions

• Mounting Depth: 162mm (6-3/8'')
• Mounting Diameter: 275mm (10-13/16'')
• Displacement: 0.100ft^3
• Added Volume: 0.090ft^3

General

• Frequency Response: 23-400Hz

Diaphram

• Material: Kevlar Reinforced Pulp Fiber
• Design: 2-Piece Structural Parabolic w/ H.A.M.R Surround (Patent Pending)

Surround

• Material: Injected Molded Santoprene
• Design: High Amplitude Multi-Roll

Spider

• Material: Nomex
• Design: Progressive

Voice Coil

• Material: 180A High Temp Wire on Spiral Cut Aluminum Former
• Design: 65mm 4-Layer Dual Voice Coil
• Motor Structure