Description
Included in this kit
This bundle includes 2x Alpine R2-W8D4 8" R-Series "R2" Subwoofer, Dual 4-Ohm, 350 Watt RMS, and an Alpine R2-A150M R-Series Mono Subwoofer Amplifier - 1500W at 1-Ohm, Hi-Res Certified.
2x Alpine R2-W8D4 8" R-Series "R2" Subwoofer, Dual 4-Ohm, 350 Watt RMS - (R2-W8D4)
Alpine R2-W8D4 8" R-Series "R2" Subwoofer, Dual 4-Ohm, 350 Watt RMS
PRODUCT OVERVIEW
The next generation of sound performance is here with the new R-Series subwoofers featuring a larger motor structure for more accurate and authoritative bass.
New Motor Structure – The new R-Series subwoofers now feature larger, double-stacked magnets that contribute more motor force for deeper bass and tighter bass control compared to the previous generation.
Oversized Dust Cap – The new hybrid poly ceramic composite dust cap ensures rigidity while also providing incredible internal damping (vibration absorption) to smooth out the bass response and reproduce tight bass.
Increased Accuracy – Alpine’s High Amplitude Multi-Roll (HAMR) Surround Technology allows the cone to efficiently move air while staying cool resulting in incredible accuracy from the subwoofer.
General Specs:
• Size: 8”
• Dimensions: 7.64” x 7.64” x 4.56”
• Frequency Response: 30Hz - 200Hz
• Power Range: 150W - 350W RMS
• Power Handling: 350W RMS / 1000W Peak
• Magnet Weight: 56 oz
• Voice Coil Diameter: 40 mm (2.6”)
T/S Parameters:
• Sensitivity (1W/1m): 83.7 dB
• DC Resistance (Re): 3.6Δ + 3.6Δ
• Free Air Resonance (Fs): 43 Hz
• Equivalent Stiffness: 10.5 L
• Mechanical Q (Qms): 7.08
• Electrical Q (Qes): 0.58
• Total Q (Qts): 0.53
• Cone Area (Sd): 201 cm2
• Linear Excursion (Xmax): 12 mm
• Mechanical Travel (Xmech): 52 mm
SEALED BOX RANGE:
Net Internal Volume: 0.15 - 0.45 ft3
RECOMMENDED SEALED BOX:
External Dimensions: 13” x 13” x 5.5”
Gross Internal Volume: 0.30 ft3
Net Internal Volume: 0.25 ft3
VENTED BOX RANGE:
Net Internal Volume: 0.25 - 0.7 ft3
Fb, Tuning: 36-40Hz
RECOMMENDED VENTED BOX:
External Dimensions: 11” x 9.5” x 21”
Gross Internal Volume: 0.86 ft3
Vent Area (W x H): 8 in2 (8” x 1”)
Vent Length: 17.5”
Vent Displacement: 0.13 ft3
Net Internal Volume (Vb): 0.68 ft3
1x Alpine R2-A150M R-Series Mono Subwoofer Amplifier - 1500W at 1-Ohm, Hi-Res Certified - (R2-A150M)
The Alpine “R-Series” line of speakers, subwoofers and amplifiers have a heritage of sound quality you can hear from a block away, and the newly added R-Series amplifiers are no exception. Aside from their best-in-class performance, these amplifiers are tuned to emphasize the characteristics of the R-Series speakers and subwoofers, giving you that legendary R-Series experience. They have a 15% reduced footprint compared to the previous models and are easier to install.
FEATURES
Install
Terminal Layout: One side
Small footprint for easy installation
Screw terminals (for speaker and power cables)
General
Class-D Amplification (Digital)
Channel Design: Mono Channel
Top panel controls
Thermal Management Control
Top Mounted LED Power/Status Indicator
Speaker Level Input with remote turn on
Crossover: Adjustable Low-pass (LPF) and Variable Subsonic filter
Adjustable Gain Control
Bass EQ
Remote Bass Control (RUX-KNOB2) Ready
SPECIFICATIONS
Max Power Output Ratings
Total Max Power: 2300W
RMS Power Ratings
Per Channel into 1 Ohms, 14.4V (≤1%THD+N): 1 x 1500W
Per Channel into 2 Ohms, 14.4V (≤1%THD+N): 1 x 1200W
Per Channel into 4 Ohms, 14.4V (≤1%THD+N): 1 x 700W
Sound Tuning
Crossover: Variable LPF: 50-400Hz (-24dB/oct)
Crossover: Variable Subsonic: 8Hz-40Hz (-24dB/oct)
General
Power Requirements: 14.4 V.DC (9 - 16 V allowable)
Input Sensitivity (RCA Input): Hi: 0.4V - 10V / Low: 0.1V - 4.0V
High Level Input with automatic power on
Cable size: Power Cable AWG 4, SPK Cable AWG 8
Frequency Response: 10Hz – 400Hz
THD+N (@ 10W into 4 Ohms): <0.04%
Damping Factor: >250
Weight: 5kg
Dimensions
Heat Sink (WxHxD) mm: 341 x 65 x 185