Alpine SWR-12D4 – 12″ DVC Type R Subwoofer

$329.00

Alpine Type-R 12″ Subwoofer – The all-new Type-R Subwoofers now offer unique Alpine technology and massive power handling to achieve even cleaner and deeper bass extension, faster and more accurate transients, and greater output capability. With more power handling and patented Alpine technology for lower distortion and higher SPL, the new Type-R subs take performance to all new heights.

* 1 Year Warranty as per Alpine Electronics Australia T&C’s

SKU: SWR12D4 Categories: , , ,

Description

Alpine SWR-12D4 – 12″ Type R Subwoofer

Features

  • Kevlar-Reinforced Carbon Fibre Cone
  • Aluminium honeycomb
  • Kevlar-Reinforced pulp for maximum strength
  • High-efficiency thermal management
  • High-Amplitude Multi-Roll Surround
  • heavy-gauge push terminals
  • Peak Power Handling: 3000W
  • RMS Power Handling: 1000W
  • Nominal Impendance: 4ohms+4ohms
  • Frequency Response: 26Hz-200Hz
  • Mounting Dimensions: 275mm diameter x 161.8mm depth

Specifications

General

  • Sealed: 12″
  • Frequency Response: 24Hz-200Hz
  • Power Range: 300W – 1000W RMS
  • RMS Power Handling: 1000W
  • Peak Power Handling: 3000W
  • Magnet Weight: 127oz
  • Voice Coil Diameter: 65.5 mm (2.6″)

Thiel-Small Parameters

  • Sensitivity (1W/1m): 84.9dB
  • DC Resistance: 3.8ohms + 3.8ohms
  • Inductance: 3.33 mH
  • Free Air Resonance: 28 Hz
  • Equivalent Stiffness: 46L
  • Mechanical Q: 6.04
  • Electrical Q: 0.52
  • Total Q: 0.48
  • Cone Area: 479cm²
  • Linear Excursion: 20 mm
  • Mechanical Travel: 72 mm

Note: Specifications are subject to change without notice.

Sealed box range

  • Net Internal Volume: 0.55-1.0 ft³

Recommended Sealed Box

  • External box dimensions: 14″x14″x11″
  • Gross internal volume: 0.85 ft³
  • Net internal volume: 0.75 ft³
  • F3, Qtc: 45 Hz, 0.81

Vented box range

  • Net internal volume: 1.0-1.5 ft³
  • Tuning: 32-37 Hz

Recommended vented box

  • External box dimensions: 23″ x 12.5″ x 14″
  • Gross internal volume: 1.71 ft³
  • Dimensions: 12.5in² (12.5″x1″)
  • Gross internal volume: 19″
  • Vent displacement: 0.23 ft³
  • Net internal volume (Vb): 1.38 ft³
  • F3, ripple, Fb: 29Hz, 4.4dB, 35Hz

Notes: 

  • Recommended enclosure net internal volume is based upon 3/4″ (19mm) MDF enclosure construction.
  • Consult below for alternative enclosure net internal volume calculation.
  • Front mount displacement* (magnet in): -0.10 ft³
  • Reverse mount added volume* (magnet out): +0.09 ft³

Based upon 3/4″ (19mm) baffle thickness, with opening cut approximately to gasket inner diameter.