R-Series 8-Inch 350-Watt Subwoofer Driver, 2-Ohm or 4-Ohm Dual Voice Coil
Since the Type R platform, Alpine’s R-Series sound system family has been known for its incredible output and reliable performance. Now Alpine introduces the next-generation of sound performance with the 2nd-Gen R-Series Subwoofers with even more bass output.
The 2nd-Gen R-Series Subwoofers now feature larger, double-stacked magnets that contribute more motor force for deeper bass and tighter bass control from the subwoofer cone compared to the previous generation. An integrated Faraday ring minimizes distortion for cleaner bass output. A Kevlar-treated cone ensures durability in the subwoofer for reliable performance, even at high volumes.
A new polypropylene/ceramic composite dust cap ensures rigidity while also providing incredible internal damping (vibration absorption) to smooth out the bass response and reproduce tight bass. This premium, unique material also has higher heat reliability that ensures non- stop bass performance.
The 2nd-Gen R-Series Subwoofers contain a Dual Voice Coil (DVC) with easy configuration jumpers that allow for flexible applications. A new “EZ- Change” twist-lock grille mounting system makes it easy to install and remove an optional grille without mounting screws for added protection to the cone. The R2-W8D2 and R2-W8D4 is compatible with the KTE-8G Grille System (sold separately).
The 2nd-Gen R-Series Subwoofers contain Alpine’s High Amplitude Multi- Roll (HAMR) Surround Technology. This rubber surround allows the subwoofer cone to efficiently move air while staying cool. This technology allows for 20mm of total cone excursion and motion that creates incredible accuracy from the subwoofer.
Features
Dual Voice Coil (DVC) Subwoofers with Configuration Jumpers
Polypropylene/Ceramic Composite Dust Cap
Kevlar Reinforced Pulp Cone High-Performance subwoofers
Twist-Lock Grille Mount System
High-Amplitude Multi-Roll (H.A.M.R.) Surround
Large Double-Stacked Magnets
Specifications
350W RMS
1000W Peak Power Handling
Frequency Response: 30Hz-200Hz
Sensitivity (1W/1m): 83.5dB
Nominal Impedance: 4Ω
Voice Coil: 35mm
X-Max: 12mm
Magnet Weight: 56oz
Mounting Depth: 4-3/8” (118mm)
Cutout Size: 6-15/16” (176mm)
Push-Type Speaker Terminals (Up to 8AWG Wire Size)
CTA-2031 Compliant
Alpine R2-W8D Manual
8-Inch Thin Subwoofer Driver, 350-Watt RMS, 2-Ohm or 4-Ohm Dual-Voice-Coil
The Kicker Solo-Baric® L7T square subwoofer delivers more bass than a round driver, giving you up to 20% more cone area than a round sub while fitting where only a thin driver will do. Match any L7T thin sub with a KX-Series mono amplifier for an outstanding combination of power and size.
Uses a sealed or ported enclosure
Square sub design moves 20% more air than round subwoofers
Easily mounts under or behind a deat
Dual voice coil design
Ribbed santoprene surround resists heat And degrading
Bumped top plate for more excursion & smoother performance
SoloKon™ cone with 360-degree back bracing
UniPlate™ solid pole pPiece & backplate for excellent heat dissipation
Durable steel basket
Specifications
Size (IN.,CM)
8, 20
Impedance (OHMS)
2 or 4 DVC
Recommended Amplifier Power (watts RMS)
350
Peak Power (watts, per ANSI/CTA-2031-A)
700
Sensitivity (dB 1w/1m)
84.835
Frequency Response (Hz)
30-100
Mounting Depth (IN.,CM)
2-3/4, 7
Mounting Cutout, Square (IN.,CM)
7-3/8, 18.8
Min Rec Sealed Box Volume (CU. FT., Liters)
0.2, 5.66
Max Rec Sealed Box Volume (CU. FT., Liters)
.75, 21.2
Min Rec Vented Box Volume (CU. Ft., Liters)**
.8, 22.7
Max Rec Vented Box Volume (CU. Ft., Liters)**
1.2, 34
Kicker L7T Subwoofer Manual
8-Inch Square 750-Watt Subwoofer Driver, 2-Ohm or 4-Ohm DVC
The audiophile competition 8" L7 square sub by Kicker has an advanced motor structure that includes a large-diameter spider for less flex, longer life and superior accuracy. This 8 inch 750W driver has two dual high-temp voice coils, an injection-molded polypropylene cone, SoloKon™ 360-degree back bracing, a ribbed Santoprene surround with blue surround stitching and Kicker's patented UniPlate™ back plate and pole piece. Perimeter venting for thermal heat dispersion management keeps this earth shattering 8 inch square sub nice and cool.
This 8" L7 square sub can handle up to 750W RMS of amplifier power and comes with dual spring-loaded speaker terminals for a solid speaker wire connection.
Specifications
Size (IN.,CM)
8, 20.32
Impedance (OHMS)
2 or 4 DVC
Recommended Amplifier Power (watts RMS)
450
Peak Power (watts, per ANSI/CTA-2031-A)
900
Sensitivity (dB 1w/1m)
83.6
Frequency Response (Hz)
28-100
Mounting Depth (IN.,CM)
4 3/4, 12.1
Mounting Cutout, Square (IN.,CM)
7 1/4, 18.4
Min Rec Sealed Box Volume (CU. FT., Liters)
.5, 14.16
Max Rec Sealed Box Volume (CU. FT., Liters)
.75, 21.24
Min Rec Vented Box Volume (CU. Ft., Liters)**
.66, 18.6
Max Rec Vented Box Volume (CU. Ft., Liters)**
1.0, 28.3
Kicker Solo-Baric L7 Subwoofer Manual
8-Inch 300-Watt Thin Subwoofer Driver, 2-Ohm or 4-Ohm DVC
The CompRT 8-inch subwoofer is an all-weather thin bass driver with a pair of 2-Ohm or 4-Ohm voice coils. With a mounting depth under three inches and plenty of power handling, this go-anywhere sub is as flexible as it is powerful. A UV-resistant cone and surround help make the CompRT sound great wherever the road (or trail) takes you.
An advanced suspension and heat management system helps to keep the bass powerful, deep and consistent. To make Kicker subs even more reliable, their engineers developed Forced-Air Cooling™ to help these thin subs run 20 percent cooler than before.
Kicker signature red double stitching makes an outstanding bond between the improved Santoprene surround and polypropylene woofer cone. Revolutionary SoloKon™ technology joins the cone to the vented back brace, creating a single integrated unit that both cools the motor and eliminates distortion.
The CompRT 8-Inch 48CWRT82 and 48CWRT84 subwoofers work best with a sealed or ported enclosure and 300 watts of recommended power.
Specifications
SIZE [in, cm]:
8, 20
IMPEDANCE [Ohms]:
2 or 4 DVC
Recommended Amplifier Power (watts RMS)
300
Peak Power (watts, per ANSI/CTA-2031-A)
600
SENSITIVITY [dB 1w/1m]:
81.8
MOUNTING DEPTH [in, cm]:
2 11/16, 6.7
MOUNTING DIAMETER [in, cm]:
7, 17.7
MIN SEALED BOX VOL [cu. ft, L]:
0.2, 5.66
MAX SEALED BOX VOL [cu. ft, L]:
1.0, 28.32
MIN VENTED BOX VOL [cu. ft, L]:
0.8, 22.7
MAX VENTED BOX VOL [cu. ft, L]:
1.2, 34
Kicker CompRT Subwoofer Manual
Alpine S-Series 300-Watt 8-Inch Subwoofer Driver, 2Ω or 4Ω Dual Voice Coil
Don’t think you have room for a subwoofer? Think again. The new S-W8D2 and S-W8D4 8” S-Series subwoofers have a shallow mounting depth of just 3-3/4” and can be used in a sealed box enclosure as small as .15 cubic foot. It is perfect for under seats, behind rear bench seats in trucks, or even in some door applications.
Specifications
8" DVC High Performance Subwoofer
Power Handling: 300W RMS/900W Peak
Push-type Insert Terminals with DVC jumper system
Concealed Mount Gasket/Grille* System(*Grille sold separately)
Frequency Response: 34Hz-200Hz
Mounting Depth 3-3/4”
Alpine S-W8D2, S-W8D4 Manual
8-Inch 300-Watt Subwoofer Driver, 2-Ohm or 4-Ohm DVC
The 48CWR8 8" subwoofer is available in a 2Ω or 4Ω dual voice coil design, making it easy to get the most out of your amp.
An advanced suspension and heat management system helps to keep the bass powerful, deep and consistent – all without a hint of distortion. KICKER developed Forced Air Cooling to helps their subs run 25% cooler.The Kicker 48CWR82 and 48CWR84 8" subs work best with a sealed or ported enclosure and 300 watts of recommended power.
Specifications
SIZE [in, cm]:
8, 20
IMPEDANCE [Ohms]:
2 or 4 DVC
Recommended Amplifier Power (watts RMS)
300
Peak Power (watts, per ANSI/CTA-2031-A)
600
SENSITIVITY [dB 1w/1m]:
82.1
MOUNTING DEPTH [in, cm]:
4-1/8, 10.5
MOUNTING DIAMETER [in, cm]:
7, 17.7
MIN SEALED BOX VOL [cu. ft, L]:
0.4, 11.3
MAX SEALED BOX VOL [cu. ft, L]:
1.0, 28.52
MIN VENTED BOX VOL [cu. ft, L]:
0.8, 22.7
MAX VENTED BOX VOL [cu. ft, L]:
1.2, 34
Kicker CompR Subwoofer Manual
8-Inch 300-Watt Thin Subwoofer Driver, 2-Ohm DVC
The CompRT 8" thin subwoofer by Kicker is a weather resistant thin sub with a 2Ω dual voice coil design. This thin 8 inch sub magnet structure delivers 300W RMS of power with a chassis mounting depth of just under 2 3/4". The Kicker designed UniPlate™ back plate and solid pole piece serve as a single heat-absorbing unit to keep this 8" CompRT thin subwoofer driver nice and cool.The CompRT 8-Inch subwoofer works best with a sealed or ported enclosure and 300 watts of recommended power.
Specifications
SIZE [in, cm]:
8, 20
IMPEDANCE [Ohms]:
2 DVC
Recommended Amplifier Power (watts RMS)
300
Peak Power (watts, per ANSI/CTA-2031-A)
600
SENSITIVITY [dB 1w/1m]:
81.8
MOUNTING DEPTH [in, cm]:
2 11/16, 6.7
MOUNTING DIAMETER [in, cm]:
7, 17.7
MIN SEALED BOX VOL [cu. ft, L]:
0.2, 5.66
MAX SEALED BOX VOL [cu. ft, L]:
1.0, 28.32
MIN VENTED BOX VOL [cu. ft, L]:
0.8, 22.7
MAX VENTED BOX VOL [cu. ft, L]:
1.2, 34
Kicker CompR Subwoofer Manual
