Magnat Betasub 20A 8 inch 140W (Peak) Bass-Reflex Subwoofer (Black) NEW

RRP $699

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12 Months Warranty - Managed by GraysOnline

Magnat Betasub 20 A Active Bass-Reflex Subwoofer (Black) (New)

This, the smallest but still powerful Betasub model, is powered by a 140 watt high-performance power amplifier and covers a low-bass bandwidth that ranges from 200 to 25 Hz – which is infinitely adjustable between 200 and 50 Hz.


  • Active bass-reflex subwoofer, down-fire
  • Black Satin/Ash Decor Black Cabinet Surface
  • Down-fire construction Cabinet
  • Flow-optimised “Airflex” reflex tube
  • High-power long-throw woofer
  • Automatic standby circuit
  • Phase switchable from 0° to 180°
  • Real-time limiter
  • Selectable mains voltage (115/230 V)
  • Adjustable volume and crossover frequency


  • Colour: Black
  • Principle: Powered bassreflex subwoofer, down-fire
  • Equipment: 200 mm woofer
  • Output power (RMS/Max.): 70 / 140 watts
  • Frequency Response: 25 – 200 Hz
  • Crossover Frequencies: 50 - 200 Hz adjustable
  • Phase: switchable 0°/180°
  • Dimensions (WxHxD): 260 x 430 x 400 mm

GST Note: GST is included in the price of this item. GST is included in the freight.

Customer Reviews



Delivery time frames will depend on your location, please check the shipping calculator to see an estimate of when you can typically expect to receive your goods based on your postcode.

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Please Note: Your goods will be delivered to your registered address. We do deliver Australia wide except for a few remote territories, please check the shipping calculator to confirm delivery availability and timeframes.

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