Rockford Fosgate R1S4-10 - 10" Prime 400W Subwoofer

Rockford Fosgate Prime R1 10” subwoofers provide high performance bass at an unbelievable value. This model features a laser etched curvilinear dust-cap to dissipate heat generated by the high‐temp copper voice coil as well as a solid stamped steel frame with integrated frame mounted compression terminals. Best of all, they are optimized for both sealed and vented enclosures.

• Fiber reinforced painted paper-pulp cone
• Laser-etched aluminum dustcap
• High durability compressed foam surround
• Fatigue resistant poly-cotton spider with integral woven leads
• Proprietary powder coated stamped steel frame with spider cavity venting
• Bumped backplate with vented pole piece for greater thermal/mechanical power handling
• High-temp copper voice coil with aluminum former
• High-grade Y30 Ferrite magnet
• Integrated spring-loaded nickel-plated push terminals
• Integrated ABS decorative trim ring

Specifications:

• Size: 10"
• Nominal Impedance: 4-Ohm
• Power Handling (Watts RMS): 200 Watts RMS / 400 Watts Max
• Voice Coil Diameter: 2.0" (50.8 mm)
• Magnet Weight (oz): 34 oz. (0.96 Kg.)
• Speaker Connector: 12 AWG compression
• Fs (Hz): 33.5
• Re (Ohms): 3.5
• Le (mH): 2.00
• Qms: 8.55
• Qes: 0.62
• Qts: 0.58
• Vas (Liters): 38.1
• Sd (cm2): 336.5
• SPL (dB @ 1w/1m): 87
• Xmax (mm): 7.0
• Woofer Displacement (in): 0.06 cu.ft. (1.80 Liters)    
• Shipping Weight: 7.6 Lbs. (3.4 Kg.)