Single 8” Type R 350W RMS Shallow Ported Loaded Enclosure Power Handling:Peak: 1000 watts - RMS: 350 watts - Impedance: 4 ohms - Kevlar reinforced pulp cone with Santoprene rubber surround - High Amplitude Multi-Roll (H.A.M.R) surround - FEA Optimized progressive NOMEX spider - Cast aluminium frame with perimeter venting - Progressive Conex spider - Compound Radius Curve pole geometry - Frequency Response: 28Hz 400Hz - Dimensions: 49L x 29W x 16H (cm)
Single 8” Type R 350W RMS Shallow Ported Loaded Enclosure Power Handling:Peak: 1000 watts - RMS: 350 watts - Impedance: 4 ohms - Kevlar reinforced pulp cone with Santoprene rubber surround - High Amplitude Multi-Roll (H.A.M.R) surround - FEA Optimized progressive NOMEX spider - Cast aluminium frame with perimeter venting - Progressive Conex spider - Compound Radius Curve pole geometry - Frequency Response: 28Hz 400Hz - Dimensions: 49L x 29W x 16H (cm)
in 3 offers
The lowest price for Alpine SBR-S8-4 8" Ported Loaded Enclosure right now is $329.00 at eBay.com.au, compared across 3 retailers.
The all-time low was $254.85 on 7 Mar 2026 — today's price is 29% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 7 June 2026.
Alpine SBR-S8-4 8" Ported Loaded Enclosure
Single 8” Type R 350W RMS Shallow Ported Loaded Enclosure Power Handling:Peak: 1000 watts - RMS: 350 watts - Impedance: 4 ohms - Kevlar reinforced pulp cone with Santoprene rubber surround - High Amplitude Multi-Roll (H.A.M.R) surround - FEA Optimized progressive NOMEX spider - Cast aluminium frame with perimeter venting - Progressive Conex spider - Compound Radius Curve pole geometry - Frequency Response: 28Hz 400Hz - Dimensions: 49L x 29W x 16H (cm)
Single 8” Type R 350W RMS Shallow Ported Loaded Enclosure Power Handling:Peak: 1000 watts - RMS: 350 watts - Impedance: 4 ohms - Kevlar reinforced pulp cone with Santoprene rubber surround - High Amplitude Multi-Roll (H.A.M.R) surround - FEA Optimized progressive NOMEX spider - Cast aluminium frame with perimeter venting - Progressive Conex spider - Compound Radius Curve pole geometry - Frequency Response: 28Hz 400Hz - Dimensions: 49L x 29W x 16H (cm)
Last updated at 07/06/2026 23:38:14
Alpine Sbr-s8d4.2 R-series 8 Compact Subwoofer
Delivery $9.95
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Alpine SBR-S8D4.2 R-Series 8" 4-Ohm DVC Ported Subwoofer Enclosure
Delivery between 8–18 June $10.95
Alpine SBR-S8D4.2
| Subwoofer Size | 8′′ |
| Power Handling (RMS/Peak) | 350W/1000W |
| Power Range (RMS) | 150W-350W |
| Frequency Response (Hz) | 28Hz-200Hz |
| Diaphragm Material | Kevlar-Reinforced Pulp Fiber |
Alpine Sbr-s8d4.2 R-series 8 Compact Subwoofer
Delivery $9.95
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Alpine SBR-S8D4.2 R-Series 8" 4-Ohm DVC Ported Subwoofer Enclosure
Delivery between 8–18 June $10.95
Alpine SBR-S8D4.2
| Subwoofer Size | 8′′ |
| Power Handling (RMS/Peak) | 350W/1000W |
| Power Range (RMS) | 150W-350W |
| Frequency Response (Hz) | 28Hz-200Hz |
| Diaphragm Material | Kevlar-Reinforced Pulp Fiber |
