SWR-8D4

Alpine

Discontinued

Your price:
€ 174,90
Price per single item (VAT included)
Type
Subwoofer
Speaker Size
200 mm
MAX Power
1000 Watt
RMS Power
350 Watt
Frequency Response
30 -200 Hertz
Sensitivity
83.5 dB
Impedance
4+4 Ohm
Installation Depth
115 mm
Woofer Material
Polypropylene e Mica

SWR-8D4 - Type-R Subwoofer 20 cm Dual Voice Coil 4 Ohm + 4 Ohm

The fifth generation of Type-R subwoofers delivers increasingly clean, deeper, faster and more accurate bass with even greater power output.

Speaker Rating:

Max RMS Power: 350W
Maximum Peak Power: 1000W


Extreme Bass in Less Space

Type-R Subwoofers have been completely redesigned to offer greater installation flexibility and wider application versatility to build your ideal audio system. At 115 mm of mounting depth for the 8" (20 cm) this new design offers even greater output capability.
More excursion = More power.

The new FEA-Optomized Motor Structure combined with the revolutionary High-Amplitude Multi Roll (HAMR) surround design provides the new Type-R subwoofers with the highest excursion and SPL in the category. The 12mm X-Max measurement gives the new 8" (20cm) Type-R the power lead in its category, ultra-low distortion and unmatched sound quality.


More Powerful Motor = More Control

Starting with the new magnet structure segmented into ten pieces, the new Type-R subwoofers deliver more powerful and precise bass with perfect motion control. The new magnet is an integral part of Alpine's new generation Patented Radial Vented VC cooling system.
Keep it Cool = Keep it Playing

Alpine's Patented Radial Vented VC Heatsink and Airflow Management System (US Patent #7,634,101) helps minimize power compression and ensures long-term reliability without power loss, without overheating the voice coil. The new one-piece aluminum frame uses the entire structure as a large heatsink, enabling consistent perfect management and uncompromised power delivery, even in the most extreme applications.


FEA Optimized = Maximum Linearity

Alpine's Patented Compound Radius Curve technology ensures an ultra-symmetric magnetic field, optimizing flux density to reduce distortion, improving power and output retention.
Ever Greater Power

The oversized 38 mm voice coil allows for increased power handling of 350W RMS / 1000W Peak.

To achieve maximum performance, it is recommended to pair a PDX Digital amplifier with the new Type-R.

Alpine's Unique Technology

1. FEA Optimized HAMR Surround

The large amplitude of the Multi Roll suspension allows extreme excursions without sacrificing valuable cone space. FEA optimized ensures superb linearity and made with an injection molded Santoprene® tool, this HAMR surround is a fundamental part of the suspension system, allowing extreme excursions with total control without distortion.

2. FEA Optimized Spider with Reinforced Layers

Ensures reliable and consistent control to eliminate any possible mechanical noise or interference typical of many high-excursion devices.

3. Vented VC Heatsinks & Airflow Management

Actively manages voice coil temperatures by forcing air directly into the heatsink system.

4. FEA Optimized Motor Structure

Enables the creation of a symmetric magnetic field, optimizing flux density to significantly reduce distortion, further improving power and output retention.

FEATURES

  • Diaphram
  • Material Reinforced Parabolic Cone Structure with Poly-Mica Dust Cap & Pulp-Kevlar Cone Body
  • Design: 2-Piece Structural Parabolic
  • Surround
  • Material: Injected Molded Santoprene®
  • Design: High Amplitude Multi-Roll
  • Spider
  • Material: Nomex®
  • Design: Progressive Conex® Spider with Reinforced Layer Tinsel Leads
  • Voice Coil
  • Material: 38mm Voice Coil with High-Temp
  • Design: 4-Layer DVC Winding on Spiral Cut
  • Motor Structure
  • Pole Geometry: Extended Pole Geometry
  • Configuration: Compound Radius Curve
  • Frame
  • Material: Cast Aluminum
  • Design: Perimeter Vented Heat Transfer
  • Terminals
  • Layout: One Side
  • Design: Heavy Duty 10mm² Push with Housing, Banana Plug Jumper
  • Tinsel Leads
  • Design: Reinforced Layer Spider Integration (Patent #6,810,988)
  • Gasket
  • Design: Concealed Mount Gasket (Integrated Grille System Ready, US Pat #7,760,900)

SPECIFICATIONS

  • Power Handling
  • RMS Power Handling: 350 Watts
  • Peak Power Handling: 1000 Watts
  • Dimensions
  • Mounting Depth: 115 mm
  • Mounting Diameter: 176 mm
  • Displacement: 1.4l
  • Added Volume: 1.0l
  • General
  • Nominal Impedance: 4 Ohm + 4 Ohm
  • Frequency Response: 30-200 Hz


Scheda tecnica

20131014151157-om-swr-8d4-en.pdf
Discontinued