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Alpine R2-W8D4 8" R-Series "R2" Subwoofer, Dual 4-Ohm, 350 Watt RMS - Open Box

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SKU:
R2-W8D4-UOB-K
Condition:
Used
$280.00
$249.95
You save $30.05
$280.00
$249.95
You save $30.05

Description

Alpine R2-W8D4

R-Series Type R2 8-inch Subwoofer 4+4 ohms

The new R-Series subwoofers now feature larger, double-stacked magnets that contribute more motor force for deeper bass and tighter bass control. 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. The new R-Series subwoofers contain a Dual Voice Coil (DVC) with easy configuration jumpers that allow for flexible applications. A new ā€œEZ-Changeā€ 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 new R-Series subwoofers contain Alpineā€™s High Amplitude Multi-Roll (HAMR) Surround Technology. The R-Series subwoofers are High-Resolution Audio Compliant. Rated at 350W RMS (1000 peak power handling), the R-Series subwoofers will provide deep bass output.

Key Features
  • Dual Voice Coil (DVC) Subwoofers with Configuration Jumpers
  • Frequency Responseā€Æ(0/-3dB):ā€Æ30Hz-200Hz
  • Sensitivityā€Æ(1W/1m):ā€Æ83.5dB
  • Nominal Impedance: 2ā„¦ (4+4)ā€Æorā€Æ4ā„¦ (2+2)
  • 35mm voice coil
  • CTA-2031ā€Æcompliant
  • Mounting Depth: 4-3/8ā€ (118mm)
  • Cutout Size: 6-15/16ā€ (176mm)
  • XMax: 12mm
  • Magnet Weight: 56oz
  • Push-Type Speaker Terminals (Up to 8AWG Wire Size)
  • 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.)ā€ÆSurround
  • Hi-Res Audio Compliant (High-Resolution Audio Playback)
  • Large Double-Stacked Magnets
  • 350W RMS/1000Wā€ÆPeak Power Handling
General Specifications:
  • ā€¢ Size: 8ā€
  • ā€¢ Dimensions: 7.64ā€ x 7.64ā€ x 4.56ā€
  • ā€¢ Frequency Response: 30Hz - 200Hz
  • ā€¢ Power Range: 150W - 350W RMS
  • ā€¢ Power Handling: 350W RMS / 1000W Peak
  • ā€¢ Magnet Weight: 56 oz
  • ā€¢ Voice Coil Diameter: 40 mm (2.6ā€)
BOX SPECS
  • SEALED BOX RANGE:
  • Net Internal Volume: 0.15 - 0.45 cubic ft
  • RECOMMENDED SEALED BOX:
  • External Dimensions: 13ā€ x 13ā€ x 5.5ā€
  • Gross Internal Volume: 0.30 cubic ft
  • Net Internal Volume: 0.25 cubic ft
  • D2 - F3, Qtc: 59Hz, 0.73
  • D4 - F3, Qtc: 59Hz, 0.72
  • VENTED BOX RANGE:
  • Net Internal Volume: 0.25 - 0.7 cubic ft
  • Fb, Tuning: 36-40Hz
  • RECOMMENDED VENTED BOX:
  • External Dimensions: 11ā€ x 9.5ā€ x 21ā€
  • Gross Internal Volume: 0.86 cubic ft
  • Vent Area (W x H): 8 square in (8ā€ x 1ā€)
  • Vent Length: 17.5ā€
  • Vent Displacement: 0.13 cubic ft
  • Net Internal Volume (Vb): 0.68 cubic ft
  • D4 - F3, Ripple, Fb: 32Hz, 3.2 dB, 39Hz
THIELE-SMALL PARAMETERS
  • ā€¢ Sensitivity (1W/1m): 83.7 dB
  • ā€¢ DC Resistance (Re): 3.6āˆ† + 3.6āˆ†
  • ā€¢ Free Air Resonance (Fs): 43 Hz
  • ā€¢ Equivalent Stiffness: 10.5 L
  • ā€¢ Mechanical Q (Qms): 7.08
  • ā€¢ Electrical Q (Qes): 0.58
  • ā€¢ Total Q (Qts): 0.53
  • ā€¢ Cone Area (Sd): 201 square cm
  • ā€¢ Linear Excursion (Xmax): 12 mm
  • ā€¢ Mechanical Travel (Xmech): 52 mm

Used Frequently Asked Questions

  • What does used mean? Used products may be unused customer returns that are essentially "new" items, or they may be previously installed products that were returned under warranty or during our return policy period.
  • What is the warranty? All of our used items come with a 90-day warranty.
  • What's it look like? All of our used items are inspected and graded by our returns team at our facilities. They will test them and grade them to one of four standard gradings: Used Open Box, Used Very Good, Used Good, and Used Acceptable. Please see the following descriptions of each grade - also note that if an item falls under ANY of the criteria for a certain grade, even though the rest of the product is better, we will give it the lowest grade.
  • Used Open Box An item in perfect working condition. Original protective wrapping may be missing, but the original packaging is intact and in good condition with minor damage possible. Instructions are included.
  • Used Very Good A well-cared-for item with limited use, remains in good working condition. The item may show some limited signs of wear,small scratches,cosmetic blemishes. Item may arrive with damaged packaging or be repackaged and could be missing some accessories.
  • Used Good The item shows wear from use, remains in good condition and functions properly. May have damaged packaging or be repackaged. It may be marked, have identifying markings on it, have minor cosmetic damage. It may be missing some parts or accessories.
  • Used Acceptable The item is fairly worn but continues to function properly. While repackaged; signs of wear can include aesthetic issues; scratches, dents. The item may have markings on it or show signs of previous use. Item may be missing some parts or accessories.
  • Have more questions? Call us, send us a chat, or an email. We'll be able to answer any additional questions you may have.

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Extra Information

Brand:
Alpine
Weight:
10.00 LBS
UPC:
793276084699
Bundle:
No
Feature 1:
Dual Voice Coil (DVC) Subwoofers with Configuration Jumpers
Feature 2:
Push-Type Speaker Terminals (Up to 8AWG Wire Size)
Feature 3:
Polypropylene/Ceramic Composite Dust Cap
Feature 4:
Kevlar Reinforced Pulp Cone High-Performance subwoofers
Feature 5:
Twist-Lock Grille Mount System
Condition:
USED
Weight:
10.0000 lbs
ASIN:
B09Q82GQJT
Shipping:
Free 2-Day Shipping!
CreativeCare:
Includes CreativeCare one year extended warranty!

Warranty Information

Alpine

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